WO2024042788A1 - Power transmission line monitoring device, driving tool, and inspection method - Google Patents

Power transmission line monitoring device, driving tool, and inspection method Download PDF

Info

Publication number
WO2024042788A1
WO2024042788A1 PCT/JP2023/017826 JP2023017826W WO2024042788A1 WO 2024042788 A1 WO2024042788 A1 WO 2024042788A1 JP 2023017826 W JP2023017826 W JP 2023017826W WO 2024042788 A1 WO2024042788 A1 WO 2024042788A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmission line
power transmission
monitoring device
line monitoring
core member
Prior art date
Application number
PCT/JP2023/017826
Other languages
French (fr)
Japanese (ja)
Inventor
三田雅樹
東栄治
岩間成美
酒井治
佐々木隆一
梅村侑史
Original Assignee
住友電気工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 住友電気工業株式会社 filed Critical 住友電気工業株式会社
Publication of WO2024042788A1 publication Critical patent/WO2024042788A1/en

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere

Definitions

  • the present disclosure relates to a power transmission line monitoring device, a driving jig, and an inspection method.
  • This application claims priority based on Japanese Patent Application No. 2022-133447 filed on August 24, 2022, and the entire disclosure thereof is incorporated herein.
  • Patent Document 1 Japanese Unexamined Patent Publication No. 2019-124515 discloses the following electric wire temperature measuring device. That is, the wire temperature measuring device includes a temperature sensor section that comes into contact with the wire and measures the temperature of the wire, and a power source that is provided in an annular shape surrounding the wire and generates electric power by electromagnetic induction from a magnetic field generated around the wire. a current transformer unit for power supply, and is connected to the temperature sensor and the current transformer unit for power supply, and wirelessly transmits temperature data of the electric wire measured by the temperature sensor unit to the outside using electric power from the current transformer unit for power supply.
  • a wireless section a main body section that holds the power supply current transformer section and the radio section on the outside of the electric wire, and a main body section that is connected to one end of the main body section in the axial direction of the electric wire and grips the electric wire; a clamp for fixing the one end of the wire to the electric wire, and the temperature sensor section is provided on the opposite side of the clamp across the main body in the axial direction of the electric wire, so that the temperature sensor section is spaced apart from the clamp.
  • a power transmission line monitoring device of the present disclosure is a power transmission line monitoring device including a power generation CT (Current Transformer) including an annular core member for surrounding a power transmission line, and the power transmission line monitoring device is attached to the power transmission line.
  • a space is formed between the power transmission line and the core member in which a covered wire can be wound around the core member along the extending direction of the power transmission line.
  • FIG. 1 is a perspective view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 2 is a perspective view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 3 is a side view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 4 is a plan view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 5 is a functional block diagram showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 6 is a diagram showing the configuration of a power generation CT in a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 7 is a diagram showing the configuration of a measurement CT in a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 8 is a plan view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 9 is a cross-sectional view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 10 is a front view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 11 is a front view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 12 is a plan view showing a procedure for installing the power transmission line monitoring device according to the embodiment of the present disclosure.
  • FIG. 13 is a plan view showing the installation procedure of the power transmission line monitoring device according to the embodiment of the present disclosure.
  • FIG. 14 is a diagram showing the configuration of a driving jig according to an embodiment of the present disclosure.
  • FIG. 15 is a diagram illustrating an inspection procedure for a power transmission line monitoring device using a driving jig according to an embodiment of the present disclosure.
  • FIG. 16 is a perspective view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 17 is a front view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 18 is a side view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 19 is a cross-sectional view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 20 is a flowchart defining an example of an operation procedure when inspecting a power transmission line monitoring device using a driving jig according to an embodiment of the present disclosure.
  • FIG. 21 is a front view schematically showing the configuration of a power transmission line monitoring device according to Modification 1 of the embodiment of the present disclosure.
  • FIG. 22 is a plan view schematically showing the configuration of a power transmission line monitoring device according to Modification 2 of the embodiment of the present disclosure.
  • a monitoring device equipped with a sensor is attached to a power transmission line and the measurement results regarding the power transmission line by the sensor are monitored.
  • Such monitoring devices are often equipped with a CT that can self-generate power using induced current, since it does not require regular maintenance or replacement work.
  • the present disclosure has been made to solve the above-mentioned problems, and the purpose is to provide a power transmission line monitoring device and a driving jig that can easily check the operation of a power transmission line monitoring device attached to a power transmission line. and to provide testing methods.
  • a power transmission line monitoring device is a power transmission line monitoring device including a power generation CT including an annular core member for surrounding a power transmission line, and wherein the power transmission line monitoring device In a state where the device is attached, a space is formed between the power transmission line and the core member in which a covered wire can be wound around the core member along the extending direction of the power transmission line.
  • the covered wire is passed through the space between the power transmission line and the core member, and alternating current is supplied to the covered wire to cause the power generation CT to generate electricity. be able to.
  • the operation of the power transmission line monitoring device can be checked by driving the power transmission line monitoring device using the power generated by the power generation CT, just as when the power transmission line is in operation. It can be performed. Therefore, it is possible to easily check the operation of the power transmission line monitoring device attached to the power transmission line.
  • a power transmission line monitoring device is a power transmission line monitoring device including a power generation CT including an annular core member for surrounding a power transmission line, the CT being wound around the core member,
  • the power transmission line is a covered wire that receives alternating current from outside the power transmission line monitoring device when the power transmission line monitoring device is attached to the power transmission line, and includes the covered wire for causing the power generation CT to generate power.
  • alternating current can be supplied to the covered wire to cause the power generation CT to generate electricity.
  • the operation of the power transmission line monitoring device can be checked by driving the power transmission line monitoring device using the power generated by the power generation CT, just as when the power transmission line is in operation. It can be performed.
  • the configuration of a driving jig for driving the power transmission line monitoring device can be simplified. Further, after the power transmission line monitoring device is attached to the power transmission line, the operation of the power transmission line monitoring device can be repeatedly checked using the covered wire.
  • a driving jig for driving a power transmission line monitoring device equipped with a power generation CT including an annular core member, A winding section including a coated wire to be wound, the winding section for causing the power generation CT to generate electricity, and a load for setting an alternating current flowing through the winding section.
  • alternating current can be supplied to the winding portion to cause the power generation CT to generate electricity.
  • the power transmission line monitoring device can be driven by the power generated by the power generation CT in the same way as when the power transmission line is in operation. Therefore, it is possible to easily check the operation of the power transmission line monitoring device attached to the power transmission line.
  • the alternating current flowing through the winding portion is used to flow through the covered wire so that the power generated by the power generation CT is equal to or higher than the minimum driving power of the power transmission line monitoring device.
  • the alternating current and the number of turns of the winding portion may be set.
  • the power transmission line monitoring device can be driven by the power generated by the power generation CT, and the operation of the power transmission line monitoring device can be checked.
  • a gap may be formed between the power transmission line monitoring device and the power transmission line, and the thickness of the covered wire may be may have a thickness that allows the covered wire having the number of turns to pass through the gap.
  • the driving jig may further include a power supply section that supplies alternating current to the winding section and the load.
  • the load may be able to adjust the setting of the alternating current flowing through the winding portion.
  • An inspection method is an inspection method for a power transmission line monitoring device equipped with a power generation CT including an annular core member, using a driving jig including a covered wire, attaching the power transmission line monitoring device to the power transmission line with the core member divided; winding the covered wire around a part of the divided core member; The method includes the steps of attaching the power transmission line so as to surround the power transmission line, and supplying an alternating current to the covered wire to drive the power transmission line monitoring device.
  • the power transmission line monitoring device can be driven by the power generated by the power generation CT in the same way as when the power transmission line is in operation. You can check the operation of Therefore, it is possible to easily check the operation of the power transmission line monitoring device attached to the power transmission line.
  • the inspection method may further include, after driving the power transmission line monitoring device, cutting the covered wire and removing the covered wire from the core member.
  • the covered wire can be removed from the core member without removing the core member from the power transmission line, so compared to the method of dividing the core member in order to remove the covered wire from the core member after confirming operation, It is possible to start operation of the power transmission line monitoring device while maintaining the installed state of the power transmission line monitoring device at the time of operation confirmation, without causing any abnormality such as a failure in the installation of the core member after the operation check.
  • FIG. 1 is a perspective view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 1 shows a power transmission line monitoring device 101 attached to a power transmission line 201. As shown in FIG.
  • power transmission line monitoring device 101 is attached to power transmission line 201.
  • the power transmission line monitoring device 101 performs measurements regarding the power transmission line 201 and transmits the measurement results to a device external to the power transmission line monitoring device 101.
  • power transmission line 201 is an uncovered overhead power transmission line.
  • the power transmission line 201 may be an underground power transmission line.
  • FIG. 2 is a perspective view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 3 is a side view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 4 is a plan view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. 2 to 4 show the power transmission line monitoring device 101 in a state where it is not attached to the power transmission line 201.
  • FIG. 1 is a perspective view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 3 is a side view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 4 is a plan view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. 2 to 4 show the power transmission line monitoring device 101 in a state where it is not attached to the power transmission line 201.
  • FIG. 1 is a
  • power transmission line monitoring device 101 includes a housing 11, a grip portion 12, a hinge portion 13, fastening portions 14A and 14B, and an antenna 90.
  • the housing 11 has a cylindrical shape and has a through hole 10 for passing the power transmission line 201 along the axial direction.
  • the housing 11 includes a lower housing 11A and an upper housing 11B.
  • the lower housing 11A and the upper housing 11B have a semi-cylindrical shape.
  • the fastening portion 14A is provided at a first end and a second end in the circumferential direction of the lower housing 11A.
  • the fastening portion 14B is provided at a first end and a second end in the circumferential direction of the upper housing 11B.
  • the fastening parts 14A and 14B have through holes and are screwed together using bolts and nuts. Thereby, the lower housing 11A and the upper housing 11B are fixed to each other. On the other hand, the housing 11 can be opened and closed in a state where the fastening parts 14A and 14B are not screwed together. Note that in this specification, the descriptions of "first" and "second" do not mean priority.
  • the grip portion 12 is provided at the first end of the housing 11 in the axial direction.
  • the grip portion 12 includes a lower clamp portion 12A and an upper clamp portion 12B.
  • the lower clamp portion 12A is connected to the lower housing 11A by, for example, welding.
  • the grip part 12 grips the power transmission line 201. More specifically, the lower clamp portion 12A has a recess into which the power transmission line 201 is fitted, on the surface facing the upper clamp portion 12B.
  • the upper clamp portion 12B has a recessed portion into which the power transmission line 201 is fitted, on a surface facing the lower portion of the clamp 12A. Further, the lower clamp portion 12A and the upper clamp portion 12B have through holes, and are screwed together using bolts and nuts with the power transmission line 201 fitted into each recess. Thereby, the power transmission line monitoring device 101 is fixed to the power transmission line 201.
  • the hinge portion 13 is provided at a fastening portion 14A at a first circumferential end of the lower housing 11A and a fastening portion 14B at a first circumferential end of the upper housing 11B. More specifically, the hinge portion 13 connects the fastening portions 14A and 14B in an openable manner.
  • FIG. 5 is a functional block diagram showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • power transmission line monitoring device 101 includes a power generation CT 40, a measurement CT 50, an AC/DC conversion section 60, a communication section 70, a temperature sensor 80, and an antenna 90.
  • a part or all of the communication unit 70 is realized, for example, by a processing circuit including one or more processors.
  • the measurement CT 50 and the temperature sensor 80 are examples of a measurement section.
  • FIG. 6 is a diagram showing the configuration of a power generation CT in a power transmission line monitoring device according to an embodiment of the present disclosure.
  • power generation CT 40 includes an annular core member 41 for surrounding power transmission line 201 and a coil 42.
  • the core member 41 is formed of a magnetic material such as ferrite.
  • the coil 42 is wound around the core member 41.
  • the core member 41 has a lower core member 41A and an upper core member 41B. As described later, the lower core member 41A is provided in the lower case 11A, and the upper core member 41B is provided in the upper case 11B.
  • the power generation CT 40 generates power using alternating current flowing through the power transmission line 201. More specifically, when the power transmission line monitoring device 101 is attached to the power transmission line 201, the power generation CT 40 uses the coil 42 to detect changes in the magnetic field generated around the power transmission line 201 due to alternating current flowing through the power transmission line 201. Generates alternating current power through electromagnetic induction. The power generation CT 40 outputs the AC power generated in the coil 42 to the AC/DC converter 60.
  • FIG. 7 is a diagram showing the configuration of a measurement CT in a power transmission line monitoring device according to an embodiment of the present disclosure.
  • measurement CT 50 includes an annular core member 51 for surrounding power transmission line 201 and a coil 52.
  • the core member 51 is made of a magnetic material such as ferrite.
  • the coil 52 is wound around the core member 51.
  • the core member 51 includes a lower core member 51A and an upper core member 51B. As described later, the lower core member 51A is provided in the lower case 11A, and the upper core member 51B is provided in the upper case 11B.
  • the measurement CT 50 performs measurements regarding the power transmission line 201. More specifically, the measurement CT 50 outputs an induced current corresponding to the alternating current flowing through the power transmission line 201. Specifically, when an alternating current flows through the power transmission line 201 with the power transmission line monitoring device 101 attached to the power transmission line 201, an induced current corresponding to the alternating current flows through the coil 52 due to inductive coupling. Coil 52 outputs the induced current to communication section 70 .
  • the AC/DC converter 60 converts the AC power received from the power generation CT 40 into DC power.
  • the AC/DC conversion unit 60 supplies DC power to the communication unit 70 and the temperature sensor 80.
  • the temperature sensor 80 performs measurements regarding the power transmission line 201. More specifically, temperature sensor 80 outputs a signal indicating the temperature of power transmission line 201 to communication unit 70 .
  • the temperature sensor 80 may be a thermocouple, a thermistor, or another sensor capable of measuring the temperature of the power transmission line 201.
  • the communication unit 70 transmits the measurement results by the measurement CT 50 and the measurement results by the temperature sensor 80 to the outside of the power transmission line monitoring device 101. More specifically, the communication unit 70 generates current measurement information indicating the measurement result of the alternating current flowing through the power transmission line 201 based on the induced current received from the coil 52 in the measurement CT 50. Further, the communication unit 70 generates temperature measurement information indicating the measurement result of the temperature of the power transmission line 201 based on the signal received from the temperature sensor 80 . The communication unit 70 generates a wireless signal including current measurement information and temperature measurement information, and transmits the generated wireless signal to a device outside the power transmission line monitoring device 101 via the antenna 90.
  • FIG. 8 is a plan view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 8 shows the power transmission line monitoring device 101 with the housing 11 opened.
  • FIG. 9 is a cross-sectional view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. 9 is a sectional view taken along the line IX-IX in FIG. 8.
  • the housing 11 has a double cylinder structure. More specifically, the lower housing 11A includes a semi-cylindrical lower inner cylinder 21A, a semi-cylindrical lower outer cylinder 22A, and lower lid parts 23A and 24A. The diameter of the lower outer cylinder 22A is larger than the diameter of the lower inner cylinder 21A, and is provided so as to surround the lower inner cylinder 21A. Further, the upper housing 11B includes a semi-cylindrical upper inner cylinder 21B, a semi-cylindrical upper outer cylinder 22B, and upper lid parts 23B and 24B.
  • the diameter of the upper outer cylinder 22B is larger than the diameter of the upper inner cylinder 21B, and is provided so as to surround the upper inner cylinder 21B.
  • the lower lid portion 23A is a flat member that connects the first end in the axial direction of the lower outer cylinder 22A and the first end in the axial direction of the lower inner cylinder 21A.
  • the lower lid portion 24A is a flat member that connects the second end of the lower outer cylinder 22A in the axial direction and the second end of the lower inner cylinder 21A in the axial direction.
  • the lower inner cylinder 21A, the lower outer cylinder 22A, and the lower lid parts 23A and 24A form a lower storage part 31A, which is a storage space.
  • the upper lid portion 23B is a flat member that connects the first end of the upper outer cylinder 22B in the axial direction and the first end of the upper inner cylinder 21B in the axial direction.
  • the upper lid portion 24B is a flat member that connects the second end of the upper outer cylinder 22B in the axial direction and the second end of the upper inner cylinder 21B in the axial direction.
  • the upper inner cylinder 21B, the upper outer cylinder 22B, and the upper lid parts 23B and 24B form an upper housing part 31B that is a housing space.
  • the lower core members 41A, 51A and the communication section 70 are housed in the lower housing section 31A.
  • the upper core members 41B, 51B and the AC/DC converter 60 are housed in the upper housing part 31B.
  • FIGS. 10 and 11 are front views schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 10 shows the power transmission line monitoring device 101 with the housing 11 opened.
  • FIG. 11 shows the power transmission line monitoring device 101 with the housing 11 closed.
  • the lower core member 41A and the upper core member 41B inside the housing 11 are shown by broken lines.
  • core member 41 is divided into pieces when housing 11 is opened. More specifically, the lower core member 41A and the upper core member 41B are separated from each other when the housing 11 is opened, and are not in contact with each other.
  • the core member 41 is integrated when the housing 11 is closed. That is, the core member 41 is fitted into the housing 11 in the closed state. More specifically, the lower core member 41A and the upper core member 41B are in contact with each other when the housing 11 is closed. When the lower core member 41A and the upper core member 41B are in contact, it is meant that the contact surface of the lower core member 41A and the contact surface of the upper core member 41B are in contact with each other almost without a gap.
  • the power generation CT 40 is capable of generating power using alternating current flowing through the power transmission line 201 in a state where the core member 41 is fitted.
  • FIGS. 12 and 13 are plan views showing the installation procedure of the power transmission line monitoring device according to the embodiment of the present disclosure.
  • the power transmission line monitoring device 101 when attaching the power transmission line monitoring device 101 to the power transmission line 201, first open the casing 11 and insert the wire into the inside of the lower inner cylinder 21A and into the recessed parts of the lower clamp part 12A and the upper clamp part 12B.
  • the power transmission line monitoring device 101 is fixed to the power transmission line 201 by screwing the lower clamp portion 12A and the upper clamp portion 12B to each other in a state in which the electric wire 201 is accommodated.
  • the power transmission line monitoring device 101 which operates using the power generated by the power generation CT 40, is not driven until the power transmission line 201 starts operating after being attached to the power transmission line 201, so its operation cannot be confirmed.
  • the temperature sensor 80 and the communication unit 70 after installing the power transmission line monitoring device 101 on the power transmission line 201, open the casing 11 and supply power to the temperature sensor 80 and the communication unit 70 using the battery. It is possible to check the operation of 80 and communication section 70. However, it is only possible to check the operation in a state where the casing 11 is open, that is, in a state different from the operating state of the power transmission line monitoring device 101.
  • the power transmission line monitoring device 101, driving jig 301, and inspection method according to the embodiment of the present disclosure solves the above problems with the following configuration.
  • FIG. 14 is a diagram showing the configuration of a driving jig according to an embodiment of the present disclosure.
  • driving jig 301 includes a power supply section 310, a switch 314, a fuse 315, a load 316, and a winding section 317.
  • Power supply section 310 includes a battery 311, a DC/AC conversion section 312, and a transformer 313.
  • the winding portion 317 includes a covered wire 318.
  • the covered wire 318 may be wrapped in a predetermined number of turns and bundled, or may not be bundled.
  • the driving jig 301 is a jig for driving the power transmission line monitoring device 101.
  • a first end of the covered wire 318 is connected to the fuse 315.
  • a second end of covered wire 318 is connected to load 316.
  • the covered wire 318 is wound around the core member 41 in the power transmission line monitoring device 101.
  • the power supply section 310 supplies alternating current to the winding section 317 and the load 316. More specifically, battery 311 outputs DC power to DC/AC converter 312 .
  • the DC/AC converter 312 converts the DC power received from the battery 311 into 50 Hz or 60 Hz AC power and outputs the AC power to the transformer 313 .
  • the transformer 313 converts the voltage level of the AC power received from the DC/AC converter 312 to a predetermined level, and supplies it to the covered wire 318 via the switch 314 and the fuse 315, and also to the load 316.
  • the load 316 sets the alternating current flowing through the winding section 317. More specifically, an alternating current depending on the resistance value of the load 316 is supplied to the winding portion 317 .
  • the resistance value of the load 316 is set in advance so that, for example, the effective value of the alternating current supplied to the winding portion 317 is a predetermined value.
  • load 316 may be able to adjust the setting of the alternating current flowing through the winding portion 317. More specifically, load 316 may be a variable resistance.
  • FIG. 15 is a diagram showing an inspection procedure for a power transmission line monitoring device using a driving jig according to an embodiment of the present disclosure.
  • the winding portion 317 includes a covered wire 318 that is pre-wound with a predetermined number of turns and bundled so that a part of the winding portion 317 is accommodated inside the upper inner cylinder 21B. , is hooked onto the upper housing 11B in which the upper core member 41B is housed. Note that if the covered wire 318 is not bundled, the covered wire 318 is wound around the upper housing 11B the same number of turns as the number of turns.
  • FIG. 16 is a perspective view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 16 shows the power transmission line monitoring device 101 attached to the power transmission line 201 and with the housing 11 closed.
  • FIG. 17 is a front view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 17 shows the power transmission line monitoring device 101 attached to the power transmission line 201 and with the housing 11 closed.
  • the user attaches the divided core member 41 so as to surround the power transmission line 201. More specifically, the user closes the casing 11 of the power transmission line monitoring device 101 and screws the fastening parts 14A and 14B together. Thereby, the covered wire 318 passes through the through hole 10 and is wound around the housing 11 . That is, the winding portion 317 is in a state where it is hung around the core member 41.
  • FIG. 18 is a side view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 18 shows the power transmission line monitoring device 101 attached to the power transmission line 201 and with the housing 11 closed.
  • the power transmission line monitoring device 101 when the power transmission line monitoring device 101 is attached to the power transmission line 201, there is a gap between the upper housing 11B and the upper clamp part 12B through which the covered wire 318 can be passed through the through hole 10. It is formed. More specifically, the length C2 of the gap formed between the upper housing 11B and the upper clamp portion 12B in the axial direction of the power transmission line 201 is, for example, 2.25 mm.
  • FIG. 19 is a cross-sectional view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure.
  • FIG. 19 is a sectional view taken along the line XIX-XIX in FIG. 18, and shows the power transmission line monitoring device 101 attached to the power transmission line 201 and with the casing 11 closed.
  • a gap 17 is formed along which the covered wire 318 can be wound around the core member 41. More specifically, a gap 17 is formed between the power transmission line 201 and the casing 11 in which the covered wire 318 can be wound around the casing 11 along the extending direction of the power transmission line 201. The gap 17 is a space in which the covered wire 318 can be wound around the core member 41 along the extending direction of the power transmission line 201 when the power transmission line monitoring device 101 is attached to the power transmission line 201 . The covered wire 318 passes through the gap 17 and is wound around the housing 11 .
  • the thickness of the covered wire 318 is determined by the number of turns of the winding portion 317 in the gap 17 formed between the power transmission line monitoring device 101 and the power transmission line 201 when the power transmission line monitoring device 101 is attached to the power transmission line 201. It is thick enough to allow the covered wire 318 to pass through.
  • the length C1 of the gap 17 in the radial direction of the power transmission line 201 is 2.25 mm. It is in millimeters.
  • the diameter of the covered wire 318 is set to, for example, 2 mm or less.
  • the user supplies alternating current to the covered wire 318 using the driving jig 301 in a state where the covered wire 318 is wound through the gap 17 between the power transmission line 201 and the casing 11.
  • the power generation CT 40 in the power transmission line monitoring device 101 generates AC power by electromagnetic induction from changes in the magnetic field generated around the winding portion 317 due to the alternating current flowing through the winding portion 317.
  • Each unit in is driven.
  • the user checks the operation of the power transmission line monitoring device 101 while driving each unit in the power transmission line monitoring device 101 .
  • the alternating current flowing through the winding portion 317 is used to flow through the covered wire 318 so that the power generated by the power generation CT 40 is equal to or higher than the minimum driving power E1 of the power transmission line monitoring device 101.
  • the alternating current and the number of turns of the winding portion 317 are set.
  • an alternating current of 50 amperes when it is necessary to flow an alternating current of 50 amperes through the winding part 317 in order to cause the power generation CT 40 to generate power equal to or higher than the minimum driving power E1, for example, when an alternating current of 50 amperes needs to be passed through the winding part 317, for example, an alternating current supplied to the covered wire 318 by the transformer 313
  • the current is set to 1 ampere and the number of turns in winding section 317 is set to 50.
  • FIG. 20 is a flowchart defining an example of an operation procedure when inspecting a power transmission line monitoring device using a driving jig according to an embodiment of the present disclosure.
  • a user who inspects power transmission line monitoring device 101 using driving jig 301 first inspects power transmission line 201 with core member 41 divided, as shown in FIG.
  • the wire monitoring device 101 is attached (step S11).
  • the user winds the covered wire 318 around a portion of the divided core member 41. More specifically, the user attaches the coated wire 318, which has been wound and bundled in advance with a predetermined number of turns, to the upper core so that a part of the winding portion 317 is accommodated inside the upper inner cylinder 21B.
  • the winding portion 317 is hooked onto the upper housing 11B in which the member 41B is accommodated (step S12).
  • step S13 the user closes the housing 11 and attaches the divided core members 41 so as to surround the power transmission line 201.
  • the user supplies alternating current to the covered wire 318 using the driving jig 301 to drive the power transmission line monitoring device 101 (step S14).
  • step S15 the user checks the operation of the power transmission line monitoring device 101 (step S15).
  • the user cuts the covered wire 318 and removes the covered wire 318 from the core member 41. More specifically, after confirming the operation of the power transmission line monitoring device 101, the user cuts the covered wire 318 and removes the covered wire 318 from the case 11 without opening the case 11 (step S16).
  • the thickness of the covered wire 318 is the same as that between the power transmission line monitoring device 101 and the power transmission line 201 when the power transmission line monitoring device 101 is attached to the power transmission line 201.
  • the thickness is such that it is possible to pass through the gap 17 formed between the two, the thickness is not limited to this.
  • the power transmission line monitoring device 101 in a state where the power transmission line monitoring device 101 is attached to the power transmission line 201, the power transmission line monitoring device 101 is installed between the power transmission line 201 and the casing 11, and covers the casing 11 along the extending direction of the power transmission line 201.
  • the configuration is such that the gap 17 having the length C1 is formed around which the wire 318 can be wound, the present invention is not limited to this.
  • FIG. 21 is a front view schematically showing the configuration of a power transmission line monitoring device according to Modification 1 of the embodiment of the present disclosure.
  • FIG. 21 shows the power transmission line monitoring device 102 attached to the power transmission line 201 and with the housing 11 closed.
  • the lower core member 41A, the upper core member 41B, the lower inner cylinder 21A, and the upper inner cylinder 21B inside the housing 11 are shown by broken lines.
  • a cylindrical through hole 15 extending in the axial direction is formed in the upper housing 11B.
  • the through hole 15 is formed between the upper core member 41B and the upper inner cylinder 21B.
  • the through hole 15 is a space in which the covered wire 318 can be wound around the core member 41 along the extending direction of the power transmission line 201 when the power transmission line monitoring device 101 is attached to the power transmission line 201 .
  • the inner diameter of the through hole 15 and the thickness of the coated wire 318 are set to values that allow the coated wire 318 to be passed through the through hole 15 a number of times greater than the number of turns of the winding portion 317 of the driving jig 301. Set.
  • the through hole 15 may be formed between the lower core member 41A and the lower inner cylinder 21A in the lower housing 11A.
  • the power transmission line monitoring device 102 is installed between the power transmission line 201 and the casing 11, and covers the casing 11 along the extending direction of the power transmission line 201.
  • the gap 17 in which the wire 318 can be wound may not be formed.
  • a user who inspects the power transmission line monitoring device 102 using the drive jig 301 can repeatedly pass the covered wire 318 through the through-hole 15 the same number of turns as the preset number of turns of the winding portion 317 to remove the casing.
  • the covered wire 318 is wound around.
  • the step of passing the covered wire 318 through the through hole 15 may be performed before fixing the power transmission line monitoring device 101 to the power transmission line 201, or after fixing the power transmission line monitoring device 101 to the power transmission line 201. This may be done before the fastening parts 14A, 14B are screwed together, or after the fastening parts 14A, 14B are screwed together.
  • FIG. 22 is a plan view schematically showing the configuration of a power transmission line monitoring device according to Modification 2 of the embodiment of the present disclosure.
  • the core member 41 and the covered wire 318 inside the housing 11 are shown by broken lines.
  • power transmission line monitoring device 103 compared to power transmission line monitoring device 101, has a covered wire 318 wound around core member 41 and a hole provided in upper housing 11B. 16. More specifically, the power transmission line monitoring device 103 includes a winding section 317 that includes a covered wire 318 that is wound around the core member 41 in advance. A first end 318A of the covered wire 318 and a second end 318B of the covered wire 318 are exposed to the outside of the housing 11 through the hole 16. That is, a part of the winding part 317 is accommodated in the upper accommodation part 31B. The covered wire 318 can receive alternating current from outside the power transmission line monitoring device 103 when the power transmission line monitoring device 103 is attached to the power transmission line 201 .
  • the first end 318A of the covered wire 318 is connected to the fuse 315 in the drive jig 301, and the first end 318A of the covered wire 318 is By connecting the end portion 318B of 2 to the load 316 in the driving jig 301, alternating current can be supplied to the covered wire 318 using the driving jig 301.
  • the power transmission line monitoring device 103 may be configured to include a terminal that can expose the first end 318A and the second end 318B to the outside of the housing 11 instead of the hole 16. Similar to the power transmission line monitoring device 102 , the power transmission line monitoring device 103 is installed between the power transmission line 201 and the housing 11 in the extending direction of the power transmission line 201 when the power transmission line monitoring device 103 is attached to the power transmission line 201 . There is no need to form the gap 17 along which the covered wire 318 can be wound around the housing 11.
  • a user who inspects the power transmission line monitoring device 103 uses the driving jig 301 that does not include the winding portion 317 to inspect the power transmission line monitoring device 103. Specifically, when checking the operation of the power transmission line monitoring device 103, the user connects the first end 318A of the covered wire 318 in the power transmission line monitoring device 103 to the fuse 315 in the driving jig 301, The second end 318B of the covered wire 318 is connected to the load 316 in the driving jig 301.
  • the power generated by the power generation CT 40 using the alternating current flowing through the winding portion 317 is equal to or higher than the minimum driving power E1 of the power transmission line monitoring device 101.
  • the configuration is such that the alternating current flowing through the covered wire 318 and the number of turns of the winding portion 317 are set, the present invention is not limited to this.
  • the alternating current flowing through the covered wire 318 and the number of turns of the winding portion 317 are such that the power generated by the power generation CT 40 using the alternating current flowing through the winding portion 317 is less than the minimum driving power E1.
  • the configuration may be such that the power is set to be greater than or equal to the power that can drive at least one of the temperature sensor 80 and the communication unit 70.
  • the driving jig 301 has a configuration including the power supply section 310, the present disclosure is not limited to this.
  • the driving jig 301 may have a configuration in which part or all of the power supply section 310 is not provided. In this case, the driving jig 301 receives alternating current or direct current from the outside.
  • the power transmission line monitoring device 101 has a configuration including the measurement CT 50 and the temperature sensor 80, the present disclosure is not limited to this.
  • the power transmission line monitoring device 101 may be configured without either the measurement CT 50 or the temperature sensor 80.
  • the power transmission line monitoring device 101 may be configured to include another sensor that measures the power transmission line 201 instead of the measurement CT 50 and the temperature sensor 80.
  • the method for inspecting the power transmission line monitoring device 101 includes the step of the user cutting the covered wire 318 and removing the covered wire 318 from the core member 41, this It is not limited to.
  • the method for inspecting the power transmission line monitoring device 101 does not include the step of cutting the covered wire 318 and removing the covered wire 318 from the core member 41, but may include the step of removing the covered wire 318 from the driving jig 301. That is, after the inspection of the power transmission line monitoring device 101, the operation of the power transmission line monitoring device 101 may be started with the covered wire 318 wound around the core member 41 without removing the covered wire 318 from the core member 41. .
  • Each process (each function) of the above-described embodiment is realized by a processing circuit (Circuitry) including one or more processors.
  • the processing circuit may include an integrated circuit or the like in which one or more memories, various analog circuits, and various digital circuits are combined.
  • the one or more memories store programs (instructions) that cause the one or more processors to execute each of the above processes.
  • the one or more processors may execute each of the above processes according to the program read from the one or more memories, or may execute each of the above processes according to a logic circuit designed in advance to execute each of the above processes. May be executed.
  • the above processors include a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), a DSP (Digital Signal Processor), and an FPGA (Field Programmer). various types that are compatible with computer control, such as mmable Gate Array) and ASIC (Application Specific Integrated Circuit). processor.
  • the plurality of physically separated processors may cooperate with each other to execute each of the above processes.
  • the processors installed in each of a plurality of physically separated computers cooperate with each other via networks such as a LAN (Local Area Network), a WAN (Wide Area Network), and the Internet to perform each of the above processes. May be executed.
  • the above program may be installed in the above memory from an external server device etc.
  • CD-ROM Compact Disc Read Only Memory
  • DVD-ROM Digital Versatile Disk Read Only Memory
  • semiconductors It may be distributed in a state stored in a recording medium such as a memory, and installed into the memory from the recording medium.
  • a power transmission line monitoring device comprising a power generation CT including an annular core member for surrounding a power transmission line, When the power transmission line monitoring device is attached to the power transmission line, a space is formed between the power transmission line and the core member in which a covered wire can be wound around the core member along the extending direction of the power transmission line. is, The power transmission line monitoring device, wherein the power transmission line is an overhead transmission line.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

This power transmission line monitoring device comprises a current transformer (CT) for power generation that includes an annular core member for surrounding a power transmission line, wherein, in a state in which the power transmission line monitoring device is attached to the power transmission line, a space that allows a coated wire to be wrapped around the core member along the extension direction of the power transmission line is formed between the power transmission line and the core member.

Description

送電線監視装置、駆動用治具および検査方法Power transmission line monitoring device, driving jig and inspection method
　本開示は、送電線監視装置、駆動用治具および検査方法に関する。
　この出願は、２０２２年８月２４日に出願された日本出願特願２０２２－１３３４４７号を基礎とする優先権を主張し、その開示のすべてをここに取り込む。 The present disclosure relates to a power transmission line monitoring device, a driving jig, and an inspection method.
This application claims priority based on Japanese Patent Application No. 2022-133447 filed on August 24, 2022, and the entire disclosure thereof is incorporated herein.
　特許文献１（特開２０１９－１２４５１５号公報）には、以下のような電線温度測定装置が開示されている。すなわち、電線温度測定装置は、電線に接し該電線の温度を測定する温度センサ部と、前記電線を囲むように環状に設けられ、前記電線の周囲に生じる磁界から電磁誘導により電力を発生させる電源用カレントトランス部と、前記温度センサおよび前記電源用カレントトランス部に接続され、前記温度センサ部が測定した前記電線の温度データを、前記電源用カレントトランス部からの電力により無線で外部に送信する無線部と、前記電線の外側に前記電源用カレントトランス部および前記無線部を保持する本体部と、前記電線の軸方向の前記本体部の一端に連結され、前記電線を把持し、前記本体部の前記一端を前記電線に固定するクランプと、を備え、前記温度センサ部は、前記電線の軸方向に前記本体部を挟んで前記クランプと反対側に設けられることで、前記クランプから離間されている。 Patent Document 1 (Japanese Unexamined Patent Publication No. 2019-124515) discloses the following electric wire temperature measuring device. That is, the wire temperature measuring device includes a temperature sensor section that comes into contact with the wire and measures the temperature of the wire, and a power source that is provided in an annular shape surrounding the wire and generates electric power by electromagnetic induction from a magnetic field generated around the wire. a current transformer unit for power supply, and is connected to the temperature sensor and the current transformer unit for power supply, and wirelessly transmits temperature data of the electric wire measured by the temperature sensor unit to the outside using electric power from the current transformer unit for power supply. a wireless section, a main body section that holds the power supply current transformer section and the radio section on the outside of the electric wire, and a main body section that is connected to one end of the main body section in the axial direction of the electric wire and grips the electric wire; a clamp for fixing the one end of the wire to the electric wire, and the temperature sensor section is provided on the opposite side of the clamp across the main body in the axial direction of the electric wire, so that the temperature sensor section is spaced apart from the clamp. There is.
特開２０１９－１２４５１５号公報JP 2019-124515 Publication
　本開示の送電線監視装置は、送電線を囲むための環状のコア部材を含む発電用ＣＴ（Ｃｕｒｒｅｎｔ　Ｔｒａｎｓｆｏｒｍｅｒ）を備える送電線監視装置であって、前記送電線に前記送電線監視装置を取り付けた状態において、前記送電線と前記コア部材との間に、前記送電線の延伸方向に沿って前記コア部材に被覆線を巻回可能な空間が形成される。 A power transmission line monitoring device of the present disclosure is a power transmission line monitoring device including a power generation CT (Current Transformer) including an annular core member for surrounding a power transmission line, and the power transmission line monitoring device is attached to the power transmission line. In this state, a space is formed between the power transmission line and the core member in which a covered wire can be wound around the core member along the extending direction of the power transmission line.
図１は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す斜視図である。FIG. 1 is a perspective view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. 図２は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す斜視図である。FIG. 2 is a perspective view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. 図３は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す側面図である。FIG. 3 is a side view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. 図４は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す平面図である。FIG. 4 is a plan view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. 図５は、本開示の実施の形態に係る送電線監視装置の構成を示す機能ブロック図である。FIG. 5 is a functional block diagram showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. 図６は、本開示の実施の形態に係る送電線監視装置における発電用ＣＴの構成を示す図である。FIG. 6 is a diagram showing the configuration of a power generation CT in a power transmission line monitoring device according to an embodiment of the present disclosure. 図７は、本開示の実施の形態に係る送電線監視装置における計測用ＣＴの構成を示す図である。FIG. 7 is a diagram showing the configuration of a measurement CT in a power transmission line monitoring device according to an embodiment of the present disclosure. 図８は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す平面図である。FIG. 8 is a plan view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. 図９は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す断面図である。FIG. 9 is a cross-sectional view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. 図１０は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す正面図である。FIG. 10 is a front view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. 図１１は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す正面図である。FIG. 11 is a front view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. 図１２は、本開示の実施の形態に係る送電線監視装置の取り付け手順を示す平面図である。FIG. 12 is a plan view showing a procedure for installing the power transmission line monitoring device according to the embodiment of the present disclosure. 図１３は、本開示の実施の形態に係る送電線監視装置の取り付け手順を示す平面図である。FIG. 13 is a plan view showing the installation procedure of the power transmission line monitoring device according to the embodiment of the present disclosure. 図１４は、本開示の実施の形態に係る駆動用治具の構成を示す図である。FIG. 14 is a diagram showing the configuration of a driving jig according to an embodiment of the present disclosure. 図１５は、本開示の実施の形態に係る駆動用治具を用いた送電線監視装置の検査手順を示す図である。FIG. 15 is a diagram illustrating an inspection procedure for a power transmission line monitoring device using a driving jig according to an embodiment of the present disclosure. 図１６は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す斜視図である。FIG. 16 is a perspective view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. 図１７は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す正面図である。FIG. 17 is a front view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. 図１８は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す側面図である。FIG. 18 is a side view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. 図１９は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す断面図である。FIG. 19 is a cross-sectional view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. 図２０は、本開示の実施形態に係る駆動用治具を用いた送電線監視装置の検査を行う際の動作手順の一例を定めたフローチャートである。FIG. 20 is a flowchart defining an example of an operation procedure when inspecting a power transmission line monitoring device using a driving jig according to an embodiment of the present disclosure. 図２１は、本開示の実施の形態の変形例１に係る送電線監視装置の構成を概略的に示す正面図である。FIG. 21 is a front view schematically showing the configuration of a power transmission line monitoring device according to Modification 1 of the embodiment of the present disclosure. 図２２は、本開示の実施の形態の変形例２に係る送電線監視装置の構成を概略的に示す平面図である。FIG. 22 is a plan view schematically showing the configuration of a power transmission line monitoring device according to Modification 2 of the embodiment of the present disclosure.
　近年、送電線の保守の効率化のために、センサを備える監視装置を送電線に取り付け、当該センサによる送電線に関する計測結果をモニタする技術が提案されている。このような監視装置では、定期的な保守および交換作業が不要であるとの利点から、誘導電流による自己発電を行うことが可能なＣＴが搭載されることが多い。 In recent years, in order to improve the efficiency of power transmission line maintenance, a technology has been proposed in which a monitoring device equipped with a sensor is attached to a power transmission line and the measurement results regarding the power transmission line by the sensor are monitored. Such monitoring devices are often equipped with a CT that can self-generate power using induced current, since it does not require regular maintenance or replacement work.
　［本開示が解決しようとする課題］
　特許文献１に記載の技術では、電線温度測定装置を送電線へ取り付けた状態において、動作確認を行うことが困難な場合がある。 [Problems that this disclosure seeks to solve]
With the technique described in Patent Document 1, it may be difficult to check the operation of the wire temperature measuring device when it is attached to the power transmission line.
　本開示は、上述の課題を解決するためになされたもので、その目的は、送電線に取り付けた送電線監視装置の動作確認を容易に行うことが可能な送電線監視装置、駆動用治具および検査方法を提供することである。 The present disclosure has been made to solve the above-mentioned problems, and the purpose is to provide a power transmission line monitoring device and a driving jig that can easily check the operation of a power transmission line monitoring device attached to a power transmission line. and to provide testing methods.
　［本開示の効果］
　本開示によれば、送電線に取り付けた送電線監視装置の動作確認を容易に行うことができる。 [Effects of this disclosure]
According to the present disclosure, it is possible to easily check the operation of a power transmission line monitoring device attached to a power transmission line.
　［本開示の実施形態の説明］
　最初に、本開示の実施形態の内容を列記して説明する。 [Description of embodiments of the present disclosure]
First, the contents of the embodiments of the present disclosure will be listed and explained.
　（１）本開示の実施の形態に係る送電線監視装置は、送電線を囲むための環状のコア部材を含む発電用ＣＴを備える送電線監視装置であって、前記送電線に前記送電線監視装置を取り付けた状態において、前記送電線と前記コア部材との間に、前記送電線の延伸方向に沿って前記コア部材に被覆線を巻回可能な空間が形成される。 (1) A power transmission line monitoring device according to an embodiment of the present disclosure is a power transmission line monitoring device including a power generation CT including an annular core member for surrounding a power transmission line, and wherein the power transmission line monitoring device In a state where the device is attached, a space is formed between the power transmission line and the core member in which a covered wire can be wound around the core member along the extending direction of the power transmission line.
　このような構成により、送電線に送電線監視装置を取り付けた状態において、送電線とコア部材との間の空間に被覆線を通し、被覆線に交流電流を供給して発電用ＣＴに発電させることができる。これにより、たとえば送電線の運用が停止している状態であっても、送電線の運用時と同様に、発電用ＣＴの発電電力により送電線監視装置を駆動させて送電線監視装置の動作確認を行うことができる。したがって、送電線に取り付けた送電線監視装置の動作確認を容易に行うことができる。 With this configuration, when the power transmission line monitoring device is attached to the power transmission line, the covered wire is passed through the space between the power transmission line and the core member, and alternating current is supplied to the covered wire to cause the power generation CT to generate electricity. be able to. As a result, even if the power transmission line is not operating, for example, the operation of the power transmission line monitoring device can be checked by driving the power transmission line monitoring device using the power generated by the power generation CT, just as when the power transmission line is in operation. It can be performed. Therefore, it is possible to easily check the operation of the power transmission line monitoring device attached to the power transmission line.
　（２）本開示の実施の形態に係る送電線監視装置は、送電線を囲むための環状のコア部材を含む発電用ＣＴを備える送電線監視装置であって、前記コア部材に巻回され、前記送電線に前記送電線監視装置を取り付けた状態において前記送電線監視装置の外部から交流電流の供給を受ける被覆線であって、前記発電用ＣＴに発電させるための前記被覆線を備える。 (2) A power transmission line monitoring device according to an embodiment of the present disclosure is a power transmission line monitoring device including a power generation CT including an annular core member for surrounding a power transmission line, the CT being wound around the core member, The power transmission line is a covered wire that receives alternating current from outside the power transmission line monitoring device when the power transmission line monitoring device is attached to the power transmission line, and includes the covered wire for causing the power generation CT to generate power.
　このような構成により、送電線に送電線監視装置を取り付けた状態において、被覆線に交流電流を供給して発電用ＣＴに発電させることができる。これにより、たとえば送電線の運用が停止している状態であっても、送電線の運用時と同様に、発電用ＣＴの発電電力により送電線監視装置を駆動させて送電線監視装置の動作確認を行うことができる。また、送電線監視装置を駆動するための駆動用治具の構成を簡略化することができる。また、送電線に送電線監視装置を取り付けた後、当該被覆線を用いて、送電線監視装置の動作確認を繰り返し行うことができる。 With such a configuration, with the power transmission line monitoring device attached to the power transmission line, alternating current can be supplied to the covered wire to cause the power generation CT to generate electricity. As a result, even if the power transmission line is not operating, for example, the operation of the power transmission line monitoring device can be checked by driving the power transmission line monitoring device using the power generated by the power generation CT, just as when the power transmission line is in operation. It can be performed. Furthermore, the configuration of a driving jig for driving the power transmission line monitoring device can be simplified. Further, after the power transmission line monitoring device is attached to the power transmission line, the operation of the power transmission line monitoring device can be repeatedly checked using the covered wire.
　（３）本開示の実施の形態に係る駆動用治具は、環状のコア部材を含む発電用ＣＴを備える送電線監視装置、を駆動するための駆動用治具であって、前記コア部材に巻回される被覆線を含む巻線部であって、前記発電用ＣＴに発電させるための前記巻線部と、前記巻線部を通して流れる交流電流を設定するための負荷と、を備える。 (3) A driving jig according to an embodiment of the present disclosure is a driving jig for driving a power transmission line monitoring device equipped with a power generation CT including an annular core member, A winding section including a coated wire to be wound, the winding section for causing the power generation CT to generate electricity, and a load for setting an alternating current flowing through the winding section.
　このような構成により、送電線に送電線監視装置を取り付けた状態において、巻線部に交流電流を供給して発電用ＣＴに発電させることができる。これにより、たとえば、送電線の運用が停止している状態であっても、送電線の運用時と同様に、発電用ＣＴの発電電力により送電線監視装置を駆動することができる。したがって、送電線に取り付けた送電線監視装置の動作確認を容易に行うことができる。 With such a configuration, with the power transmission line monitoring device attached to the power transmission line, alternating current can be supplied to the winding portion to cause the power generation CT to generate electricity. Thereby, for example, even when the power transmission line is not in operation, the power transmission line monitoring device can be driven by the power generated by the power generation CT in the same way as when the power transmission line is in operation. Therefore, it is possible to easily check the operation of the power transmission line monitoring device attached to the power transmission line.
　（４）上記（３）において、前記巻線部を通して流れる交流電流を用いて前記発電用ＣＴにより発電される電力が前記送電線監視装置の最低駆動電力以上となるように、前記被覆線を通して流れる交流電流および前記巻線部のターン数が設定されていてもよい。 (4) In (3) above, the alternating current flowing through the winding portion is used to flow through the covered wire so that the power generated by the power generation CT is equal to or higher than the minimum driving power of the power transmission line monitoring device. The alternating current and the number of turns of the winding portion may be set.
　このような構成により、発電用ＣＴの発電電力により送電線監視装置を駆動し、送電線監視装置の動作確認を行うことができる。 With such a configuration, the power transmission line monitoring device can be driven by the power generated by the power generation CT, and the operation of the power transmission line monitoring device can be checked.
　（５）上記（４）において、送電線に前記送電線監視装置を取り付けた状態において、前記送電線監視装置と前記送電線との間に隙間が形成されてもよく、前記被覆線の太さは、前記ターン数の前記被覆線を前記隙間に通すことが可能な太さであってもよい。 (5) In (4) above, when the power transmission line monitoring device is attached to the power transmission line, a gap may be formed between the power transmission line monitoring device and the power transmission line, and the thickness of the covered wire may be may have a thickness that allows the covered wire having the number of turns to pass through the gap.
　このような構成により、送電線監視装置において、被覆線をコア部材に巻回するための特別な設計変更が不要であり、送電線に取り付けられる従来の送電線監視装置の動作確認を行うことができる。 With this configuration, there is no need for special design changes for winding the covered wire around the core member in the power transmission line monitoring device, and it is possible to check the operation of conventional power transmission line monitoring devices that are attached to power transmission lines. can.
　（６）上記（３）から（５）のいずれかにおいて、前記駆動用治具は、さらに、前記巻線部および前記負荷に交流電流を供給する電源部を備えてもよい。 (6) In any one of (3) to (5) above, the driving jig may further include a power supply section that supplies alternating current to the winding section and the load.
　このような構成により、たとえば屋外等の、商用電源を用いることができない場所において、送電線監視装置を駆動させて送電線監視装置の動作確認を行うことができる。 With such a configuration, it is possible to drive the power transmission line monitoring device and check the operation of the power transmission line monitoring device in a place where a commercial power source cannot be used, such as outdoors.
　（７）上記（３）から（６）のいずれかにおいて、前記負荷は、前記巻線部を通して流れる交流電流の設定を調整可能であってもよい。 (7) In any of (3) to (6) above, the load may be able to adjust the setting of the alternating current flowing through the winding portion.
　このような構成により、たとえば送電線監視装置の最低駆動電力に応じて、巻線部を通して流れる交流電流を調整することができるので、駆動用治具を用いて、最低駆動電力が異なる複数種類の送電線監視装置の動作確認を行うことができる。 With such a configuration, it is possible to adjust the alternating current that flows through the windings according to the minimum drive power of a power transmission line monitoring device, for example, so that the AC current flowing through the windings can be adjusted using a drive jig to It is possible to check the operation of power transmission line monitoring equipment.
　（８）本開示の実施の形態に係る検査方法は、被覆線を含む駆動用治具を用いた、環状のコア部材を含む発電用ＣＴを備える送電線監視装置の検査方法であって、前記コア部材が分割された状態で送電線に前記送電線監視装置を取り付けるステップと、分割された前記コア部材の一部に前記被覆線を巻回するステップと、分割された前記コア部材を、前記送電線を囲むように取り付けるステップと、前記被覆線に交流電流を供給して前記送電線監視装置を駆動するステップとを含む。 (8) An inspection method according to an embodiment of the present disclosure is an inspection method for a power transmission line monitoring device equipped with a power generation CT including an annular core member, using a driving jig including a covered wire, attaching the power transmission line monitoring device to the power transmission line with the core member divided; winding the covered wire around a part of the divided core member; The method includes the steps of attaching the power transmission line so as to surround the power transmission line, and supplying an alternating current to the covered wire to drive the power transmission line monitoring device.
　このような方法により、たとえば送電線の運用が停止している状態であっても、送電線の運用時と同様に、発電用ＣＴの発電電力により送電線監視装置を駆動させて送電線監視装置の動作確認を行うことができる。したがって、送電線に取り付けた送電線監視装置の動作確認を容易に行うことができる。 With such a method, even when the power transmission line is not in operation, the power transmission line monitoring device can be driven by the power generated by the power generation CT in the same way as when the power transmission line is in operation. You can check the operation of Therefore, it is possible to easily check the operation of the power transmission line monitoring device attached to the power transmission line.
　（９）上記（８）において、前記検査方法は、さらに、前記送電線監視装置を駆動した後、前記被覆線を切断して前記被覆線を前記コア部材から取り外すステップを含んでもよい。 (9) In (8) above, the inspection method may further include, after driving the power transmission line monitoring device, cutting the covered wire and removing the covered wire from the core member.
　このような方法により、コア部材を送電線から取り外すことなく、被覆線をコア部材から取り外すことができるので、動作確認後に被覆線をコア部材から取り外すためにコア部材を分割する方法と比べて、動作確認後にコア部材の取り付け不具合等の異常を生じることなく、動作確認時の送電線監視装置の取り付け状態を維持したままで、送電線監視装置の運用を開始することができる。 With this method, the covered wire can be removed from the core member without removing the core member from the power transmission line, so compared to the method of dividing the core member in order to remove the covered wire from the core member after confirming operation, It is possible to start operation of the power transmission line monitoring device while maintaining the installed state of the power transmission line monitoring device at the time of operation confirmation, without causing any abnormality such as a failure in the installation of the core member after the operation check.
　以下、本開示の実施の形態について図面を用いて説明する。なお、図中同一または相当部分には同一符号を付してその説明は繰り返さない。また、以下に記載する実施の形態の少なくとも一部を任意に組み合わせてもよい。 Hereinafter, embodiments of the present disclosure will be described using the drawings. In addition, the same reference numerals are attached to the same or corresponding parts in the drawings, and the description thereof will not be repeated. Furthermore, at least some of the embodiments described below may be combined arbitrarily.
　＜送電線監視装置＞
　図１は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す斜視図である。図１は、送電線２０１に取り付けられた状態の送電線監視装置１０１を示している。 <Power line monitoring device>
FIG. 1 is a perspective view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. FIG. 1 shows a power transmission line monitoring device 101 attached to a power transmission line 201. As shown in FIG.
　図１を参照して、送電線監視装置１０１は、送電線２０１に取り付けられる。送電線監視装置１０１は、送電線２０１に関する計測を行い、計測結果を送電線監視装置１０１の外部の装置へ送信する。たとえば、送電線２０１は、被覆されていない架空送電線である。なお、送電線２０１は、地中送電線であってもよい。 Referring to FIG. 1, power transmission line monitoring device 101 is attached to power transmission line 201. The power transmission line monitoring device 101 performs measurements regarding the power transmission line 201 and transmits the measurement results to a device external to the power transmission line monitoring device 101. For example, power transmission line 201 is an uncovered overhead power transmission line. Note that the power transmission line 201 may be an underground power transmission line.
　図２は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す斜視図である。図３は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す側面図である。図４は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す平面図である。図２から図４は、送電線２０１に取り付けられていない状態の送電線監視装置１０１を示している。 FIG. 2 is a perspective view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. FIG. 3 is a side view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. FIG. 4 is a plan view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. 2 to 4 show the power transmission line monitoring device 101 in a state where it is not attached to the power transmission line 201. FIG.
　図２から図４を参照して、送電線監視装置１０１は、筐体１１と、把持部１２と、ヒンジ部１３と、締結部１４Ａ，１４Ｂと、アンテナ９０とを備える。 Referring to FIGS. 2 to 4, power transmission line monitoring device 101 includes a housing 11, a grip portion 12, a hinge portion 13, fastening portions 14A and 14B, and an antenna 90.
　筐体１１は、円筒形状であり、軸方向に沿って送電線２０１を通すための貫通孔１０を有する。筐体１１は、下側筐体１１Ａと、上側筐体１１Ｂとを含む。下側筐体１１Ａおよび上側筐体１１Ｂは、半円筒形状である。 The housing 11 has a cylindrical shape and has a through hole 10 for passing the power transmission line 201 along the axial direction. The housing 11 includes a lower housing 11A and an upper housing 11B. The lower housing 11A and the upper housing 11B have a semi-cylindrical shape.
　締結部１４Ａは、下側筐体１１Ａの周方向における第１の端部および第２の端部に設けられる。締結部１４Ｂは、上側筐体１１Ｂの周方向における第１の端部および第２の端部に設けられる。締結部１４Ａ，１４Ｂは、貫通孔を有し、ボルトおよびナットを用いて互いにネジ締結される。これにより、下側筐体１１Ａおよび上側筐体１１Ｂは、互いに固定される。一方、筐体１１は、締結部１４Ａ，１４Ｂがネジ締結されていない状態において開閉可能である。なお、本明細書において、「第１の」「第２の」の記載は、優先順位を意味するものではない。 The fastening portion 14A is provided at a first end and a second end in the circumferential direction of the lower housing 11A. The fastening portion 14B is provided at a first end and a second end in the circumferential direction of the upper housing 11B. The fastening parts 14A and 14B have through holes and are screwed together using bolts and nuts. Thereby, the lower housing 11A and the upper housing 11B are fixed to each other. On the other hand, the housing 11 can be opened and closed in a state where the fastening parts 14A and 14B are not screwed together. Note that in this specification, the descriptions of "first" and "second" do not mean priority.
　把持部１２は、筐体１１の軸方向における第１の端部に設けられる。把持部１２は、クランプ下部１２Ａと、クランプ上部１２Ｂとを含む。クランプ下部１２Ａは、たとえば溶接により下側筐体１１Ａに接続される。 The grip portion 12 is provided at the first end of the housing 11 in the axial direction. The grip portion 12 includes a lower clamp portion 12A and an upper clamp portion 12B. The lower clamp portion 12A is connected to the lower housing 11A by, for example, welding.
　把持部１２は、送電線２０１を把持する。より詳細には、クランプ下部１２Ａは、クランプ上部１２Ｂと対向する面に、送電線２０１が嵌合する凹部を有する。クランプ上部１２Ｂは、クランプ下部１２Ａと対向する面に、送電線２０１が嵌合する凹部を有する。また、クランプ下部１２Ａおよびクランプ上部１２Ｂは、貫通孔を有し、互いの凹部に送電線２０１を嵌合させた状態でボルトおよびナットを用いて互いにネジ締結される。これにより、送電線２０１に送電線監視装置１０１が固定される。 The grip part 12 grips the power transmission line 201. More specifically, the lower clamp portion 12A has a recess into which the power transmission line 201 is fitted, on the surface facing the upper clamp portion 12B. The upper clamp portion 12B has a recessed portion into which the power transmission line 201 is fitted, on a surface facing the lower portion of the clamp 12A. Further, the lower clamp portion 12A and the upper clamp portion 12B have through holes, and are screwed together using bolts and nuts with the power transmission line 201 fitted into each recess. Thereby, the power transmission line monitoring device 101 is fixed to the power transmission line 201.
　ヒンジ部１３は、下側筐体１１Ａの周方向の第１の端部における締結部１４Ａ、および上側筐体１１Ｂの周方向の第１の端部における締結部１４Ｂに設けられる。より詳細には、ヒンジ部１３は、締結部１４Ａ，１４Ｂを開動可能に連結する。 The hinge portion 13 is provided at a fastening portion 14A at a first circumferential end of the lower housing 11A and a fastening portion 14B at a first circumferential end of the upper housing 11B. More specifically, the hinge portion 13 connects the fastening portions 14A and 14B in an openable manner.
　図５は、本開示の実施の形態に係る送電線監視装置の構成を示す機能ブロック図である。図５を参照して、送電線監視装置１０１は、発電用ＣＴ４０と、計測用ＣＴ５０と、ＡＣ／ＤＣ変換部６０と、通信部７０と、温度センサ８０と、アンテナ９０とを備える。通信部７０の一部または全部は、たとえば、１または複数のプロセッサを含む処理回路（Ｃｉｒｃｕｉｔｒｙ）により実現される。計測用ＣＴ５０および温度センサ８０は、計測部の一例である。 FIG. 5 is a functional block diagram showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. Referring to FIG. 5, power transmission line monitoring device 101 includes a power generation CT 40, a measurement CT 50, an AC/DC conversion section 60, a communication section 70, a temperature sensor 80, and an antenna 90. A part or all of the communication unit 70 is realized, for example, by a processing circuit including one or more processors. The measurement CT 50 and the temperature sensor 80 are examples of a measurement section.
　図６は、本開示の実施の形態に係る送電線監視装置における発電用ＣＴの構成を示す図である。図６を参照して、発電用ＣＴ４０は、送電線２０１を囲むための環状のコア部材４１と、コイル４２とを含む。コア部材４１は、フェライト等の磁性体により形成される。コイル４２は、コア部材４１に巻回されている。 FIG. 6 is a diagram showing the configuration of a power generation CT in a power transmission line monitoring device according to an embodiment of the present disclosure. Referring to FIG. 6, power generation CT 40 includes an annular core member 41 for surrounding power transmission line 201 and a coil 42. The core member 41 is formed of a magnetic material such as ferrite. The coil 42 is wound around the core member 41.
　コア部材４１は、下側コア部材４１Ａと、上側コア部材４１Ｂとを有する。後述するように、下側コア部材４１Ａは、下側筐体１１Ａに設けられ、上側コア部材４１Ｂは、上側筐体１１Ｂに設けられる。 The core member 41 has a lower core member 41A and an upper core member 41B. As described later, the lower core member 41A is provided in the lower case 11A, and the upper core member 41B is provided in the upper case 11B.
　発電用ＣＴ４０は、送電線２０１を通して流れる交流電流を用いて発電する。より詳細には、発電用ＣＴ４０は、送電線２０１に送電線監視装置１０１を取り付けた状態において、送電線２０１を通して流れる交流電流により送電線２０１の周囲に生じる磁界変化から、コイル４２を用いて、電磁誘導により交流電力を発生させる。発電用ＣＴ４０は、コイル４２において発生した交流電力をＡＣ／ＤＣ変換部６０へ出力する。 The power generation CT 40 generates power using alternating current flowing through the power transmission line 201. More specifically, when the power transmission line monitoring device 101 is attached to the power transmission line 201, the power generation CT 40 uses the coil 42 to detect changes in the magnetic field generated around the power transmission line 201 due to alternating current flowing through the power transmission line 201. Generates alternating current power through electromagnetic induction. The power generation CT 40 outputs the AC power generated in the coil 42 to the AC/DC converter 60.
　図７は、本開示の実施の形態に係る送電線監視装置における計測用ＣＴの構成を示す図である。図７を参照して、計測用ＣＴ５０は、送電線２０１を囲むための環状のコア部材５１と、コイル５２とを含む。コア部材５１は、フェライト等の磁性体により形成される。コイル５２は、コア部材５１に巻回されている。 FIG. 7 is a diagram showing the configuration of a measurement CT in a power transmission line monitoring device according to an embodiment of the present disclosure. Referring to FIG. 7, measurement CT 50 includes an annular core member 51 for surrounding power transmission line 201 and a coil 52. The core member 51 is made of a magnetic material such as ferrite. The coil 52 is wound around the core member 51.
　コア部材５１は、下側コア部材５１Ａと、上側コア部材５１Ｂとを有する。後述するように、下側コア部材５１Ａは、下側筐体１１Ａに設けられ、上側コア部材５１Ｂは、上側筐体１１Ｂに設けられる。 The core member 51 includes a lower core member 51A and an upper core member 51B. As described later, the lower core member 51A is provided in the lower case 11A, and the upper core member 51B is provided in the upper case 11B.
　計測用ＣＴ５０は、送電線２０１に関する計測を行う。より詳細には、計測用ＣＴ５０は、送電線２０１を通して流れる交流電流に応じた誘導電流を出力する。具体的には、送電線２０１に送電線監視装置１０１を取り付けた状態において、送電線２０１を通して交流電流が流れると、誘導結合により、当該交流電流に応じた誘導電流がコイル５２を通して流れる。コイル５２は、当該誘導電流を通信部７０へ出力する。 The measurement CT 50 performs measurements regarding the power transmission line 201. More specifically, the measurement CT 50 outputs an induced current corresponding to the alternating current flowing through the power transmission line 201. Specifically, when an alternating current flows through the power transmission line 201 with the power transmission line monitoring device 101 attached to the power transmission line 201, an induced current corresponding to the alternating current flows through the coil 52 due to inductive coupling. Coil 52 outputs the induced current to communication section 70 .
　再び図５を参照して、ＡＣ／ＤＣ変換部６０は、発電用ＣＴ４０から受けた交流電力を直流電力に変換する。ＡＣ／ＤＣ変換部６０は、直流電力を通信部７０および温度センサ８０へ供給する。 Referring again to FIG. 5, the AC/DC converter 60 converts the AC power received from the power generation CT 40 into DC power. The AC/DC conversion unit 60 supplies DC power to the communication unit 70 and the temperature sensor 80.
　温度センサ８０は、送電線２０１に関する計測を行う。より詳細には、温度センサ８０は、送電線２０１の温度を示す信号を通信部７０へ出力する。温度センサ８０は、熱電対であってもよいし、サーミスタであってもよいし、送電線２０１の温度を計測可能な他のセンサであってもよい。 The temperature sensor 80 performs measurements regarding the power transmission line 201. More specifically, temperature sensor 80 outputs a signal indicating the temperature of power transmission line 201 to communication unit 70 . The temperature sensor 80 may be a thermocouple, a thermistor, or another sensor capable of measuring the temperature of the power transmission line 201.
　通信部７０は、計測用ＣＴ５０による計測結果および温度センサ８０による計測結果を送電線監視装置１０１の外部へ送信する。より詳細には、通信部７０は、計測用ＣＴ５０におけるコイル５２から受けた誘導電流に基づいて、送電線２０１を通して流れる交流電流の計測結果を示す電流計測情報を生成する。また、通信部７０は、温度センサ８０から受けた信号に基づいて、送電線２０１の温度の計測結果を示す温度計測情報を生成する。通信部７０は、電流計測情報および温度計測情報を含む無線信号を生成し、生成した無線信号をアンテナ９０経由で送電線監視装置１０１の外部における装置へ送信する。 The communication unit 70 transmits the measurement results by the measurement CT 50 and the measurement results by the temperature sensor 80 to the outside of the power transmission line monitoring device 101. More specifically, the communication unit 70 generates current measurement information indicating the measurement result of the alternating current flowing through the power transmission line 201 based on the induced current received from the coil 52 in the measurement CT 50. Further, the communication unit 70 generates temperature measurement information indicating the measurement result of the temperature of the power transmission line 201 based on the signal received from the temperature sensor 80 . The communication unit 70 generates a wireless signal including current measurement information and temperature measurement information, and transmits the generated wireless signal to a device outside the power transmission line monitoring device 101 via the antenna 90.
　図８は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す平面図である。図８は、筐体１１を開けた状態の送電線監視装置１０１を示している。 FIG. 8 is a plan view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. FIG. 8 shows the power transmission line monitoring device 101 with the housing 11 opened.
　図９は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す断面図である。図９は、図８におけるＩＸ－ＩＸ線矢視断面図である。 FIG. 9 is a cross-sectional view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. 9 is a sectional view taken along the line IX-IX in FIG. 8.
　図８および図９を参照して、筐体１１は、二重筒構造を有する。より詳細には、下側筐体１１Ａは、半円筒形状の下側内筒２１Ａと、半円筒形状の下側外筒２２Ａと、下側蓋部２３Ａ，２４Ａとを含む。下側外筒２２Ａの径は、下側内筒２１Ａの径よりも大きく、下側内筒２１Ａを囲むように設けられる。また、上側筐体１１Ｂは、半円筒形状の上側内筒２１Ｂと、半円筒形状の上側外筒２２Ｂと、上側蓋部２３Ｂ，２４Ｂとを含む。上側外筒２２Ｂの径は、上側内筒２１Ｂの径よりも大きく、上側内筒２１Ｂを囲むように設けられる。筐体１１を閉めた状態において、下側筐体１１Ａにおける下側内筒２１Ａおよび上側筐体１１Ｂにおける上側内筒２１Ｂは、図２に示す筐体１１の貫通孔１０を形成する。 Referring to FIGS. 8 and 9, the housing 11 has a double cylinder structure. More specifically, the lower housing 11A includes a semi-cylindrical lower inner cylinder 21A, a semi-cylindrical lower outer cylinder 22A, and lower lid parts 23A and 24A. The diameter of the lower outer cylinder 22A is larger than the diameter of the lower inner cylinder 21A, and is provided so as to surround the lower inner cylinder 21A. Further, the upper housing 11B includes a semi-cylindrical upper inner cylinder 21B, a semi-cylindrical upper outer cylinder 22B, and upper lid parts 23B and 24B. The diameter of the upper outer cylinder 22B is larger than the diameter of the upper inner cylinder 21B, and is provided so as to surround the upper inner cylinder 21B. When the housing 11 is closed, the lower inner cylinder 21A of the lower housing 11A and the upper inner cylinder 21B of the upper housing 11B form the through hole 10 of the housing 11 shown in FIG. 2.
　下側蓋部２３Ａは、下側外筒２２Ａの軸方向における第１の端部と、下側内筒２１Ａの軸方向における第１の端部とを繋ぐ平板上の部材である。下側蓋部２４Ａは、下側外筒２２Ａの軸方向における第２の端部と、下側内筒２１Ａの軸方向における第２の端部とを繋ぐ平板上の部材である。下側内筒２１Ａ、下側外筒２２Ａおよび下側蓋部２３Ａ，２４Ａにより、収容空間である下側収容部３１Ａが形成される。 The lower lid portion 23A is a flat member that connects the first end in the axial direction of the lower outer cylinder 22A and the first end in the axial direction of the lower inner cylinder 21A. The lower lid portion 24A is a flat member that connects the second end of the lower outer cylinder 22A in the axial direction and the second end of the lower inner cylinder 21A in the axial direction. The lower inner cylinder 21A, the lower outer cylinder 22A, and the lower lid parts 23A and 24A form a lower storage part 31A, which is a storage space.
　上側蓋部２３Ｂは、上側外筒２２Ｂの軸方向における第１の端部と、上側内筒２１Ｂの軸方向における第１の端部とを繋ぐ平板上の部材である。上側蓋部２４Ｂは、上側外筒２２Ｂの軸方向における第２の端部と、上側内筒２１Ｂの軸方向における第２の端部とを繋ぐ平板上の部材である。上側内筒２１Ｂ、上側外筒２２Ｂおよび上側蓋部２３Ｂ，２４Ｂにより、収容空間である上側収容部３１Ｂが形成される。 The upper lid portion 23B is a flat member that connects the first end of the upper outer cylinder 22B in the axial direction and the first end of the upper inner cylinder 21B in the axial direction. The upper lid portion 24B is a flat member that connects the second end of the upper outer cylinder 22B in the axial direction and the second end of the upper inner cylinder 21B in the axial direction. The upper inner cylinder 21B, the upper outer cylinder 22B, and the upper lid parts 23B and 24B form an upper housing part 31B that is a housing space.
　下側収容部３１Ａには、下側コア部材４１Ａ，５１Ａおよび通信部７０が収容される。上側収容部３１Ｂには、上側コア部材４１Ｂ，５１ＢおよびＡＣ／ＤＣ変換部６０が収容される。 The lower core members 41A, 51A and the communication section 70 are housed in the lower housing section 31A. The upper core members 41B, 51B and the AC/DC converter 60 are housed in the upper housing part 31B.
　図１０および図１１は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す正面図である。図１０は、筐体１１を開けた状態の送電線監視装置１０１を示している。図１１は、筐体１１を閉めた状態の送電線監視装置１０１を示している。図１０および図１１では、筐体１１の内部における下側コア部材４１Ａおよび上側コア部材４１Ｂを破線で示している。 10 and 11 are front views schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. FIG. 10 shows the power transmission line monitoring device 101 with the housing 11 opened. FIG. 11 shows the power transmission line monitoring device 101 with the housing 11 closed. In FIGS. 10 and 11, the lower core member 41A and the upper core member 41B inside the housing 11 are shown by broken lines.
　図１０を参照して、コア部材４１は、筐体１１を開けた状態において、分割されている。より詳細には、下側コア部材４１Ａおよび上側コア部材４１Ｂは、筐体１１を開けた状態において離間しており、接触していない。 Referring to FIG. 10, core member 41 is divided into pieces when housing 11 is opened. More specifically, the lower core member 41A and the upper core member 41B are separated from each other when the housing 11 is opened, and are not in contact with each other.
　図１１を参照して、コア部材４１は、筐体１１を閉めた状態において、一体化している。すなわち、コア部材４１は、筐体１１を閉めた状態において、勘合している。より詳細には、下側コア部材４１Ａおよび上側コア部材４１Ｂは、筐体１１を閉めた状態において接触している。下側コア部材４１Ａおよび上側コア部材４１Ｂが接触しているとは、下側コア部材４１Ａの接触面および上側コア部材４１Ｂの接触面とがほぼ隙間なく接触していることを言うものとする。発電用ＣＴ４０は、コア部材４１が勘合した状態において、送電線２０１を通して流れる交流電流を用いた発電が可能である。 Referring to FIG. 11, the core member 41 is integrated when the housing 11 is closed. That is, the core member 41 is fitted into the housing 11 in the closed state. More specifically, the lower core member 41A and the upper core member 41B are in contact with each other when the housing 11 is closed. When the lower core member 41A and the upper core member 41B are in contact, it is meant that the contact surface of the lower core member 41A and the contact surface of the upper core member 41B are in contact with each other almost without a gap. The power generation CT 40 is capable of generating power using alternating current flowing through the power transmission line 201 in a state where the core member 41 is fitted.
　＜送電線監視装置の取り付け＞
　図１２および図１３は、本開示の実施の形態に係る送電線監視装置の取り付け手順を示す平面図である。 <Installation of power line monitoring device>
FIGS. 12 and 13 are plan views showing the installation procedure of the power transmission line monitoring device according to the embodiment of the present disclosure.
　図１２を参照して、送電線２０１に送電線監視装置１０１を取り付ける場合、まず、筐体１１を開けて、下側内筒２１Ａの内部ならびにクランプ下部１２Ａおよびクランプ上部１２Ｂの各々の凹部に送電線２０１を収容した状態において、クランプ下部１２Ａおよびクランプ上部１２Ｂを互いにネジ締結することにより、送電線２０１に送電線監視装置１０１を固定する。 Referring to FIG. 12, when attaching the power transmission line monitoring device 101 to the power transmission line 201, first open the casing 11 and insert the wire into the inside of the lower inner cylinder 21A and into the recessed parts of the lower clamp part 12A and the upper clamp part 12B. The power transmission line monitoring device 101 is fixed to the power transmission line 201 by screwing the lower clamp portion 12A and the upper clamp portion 12B to each other in a state in which the electric wire 201 is accommodated.
　図１３を参照して、次に、送電線監視装置１０１における筐体１１を閉めて、締結部１４Ａ，１４Ｂを互いにネジ締結する。 Referring to FIG. 13, next, the casing 11 of the power transmission line monitoring device 101 is closed, and the fastening parts 14A and 14B are screwed together.
　＜課題＞
　ところで、送電線２０１に取り付けた送電線監視装置１０１の動作確認を容易に行うことが可能な技術が望まれる。より詳細には、送電線２０１に送電線監視装置１０１を取り付ける作業を行う際、感電防止等の観点から、送電線２０１の運用は停止される。 <Assignment>
By the way, a technique is desired that can easily check the operation of the power transmission line monitoring device 101 attached to the power transmission line 201. More specifically, when the power transmission line monitoring device 101 is attached to the power transmission line 201, the operation of the power transmission line 201 is stopped from the viewpoint of preventing electric shock and the like.
　したがって、発電用ＣＴ４０の発電電力により動作する送電線監視装置１０１は、送電線２０１に取り付けた後、送電線２０１の運用を開始するまで駆動しないので、動作確認を行うことができない。 Therefore, the power transmission line monitoring device 101, which operates using the power generated by the power generation CT 40, is not driven until the power transmission line 201 starts operating after being attached to the power transmission line 201, so its operation cannot be confirmed.
　温度センサ８０および通信部７０については、送電線２０１に送電線監視装置１０１を取り付けた後、筐体１１を開き、バッテリを用いて温度センサ８０および通信部７０に電力を供給することにより温度センサ８０および通信部７０の動作確認を行うことは可能である。しかしながら、筐体１１を開いた状態、すなわち送電線監視装置１０１の運用状態とは異なる状態での動作確認をすることができるに留まる。 Regarding the temperature sensor 80 and the communication unit 70, after installing the power transmission line monitoring device 101 on the power transmission line 201, open the casing 11 and supply power to the temperature sensor 80 and the communication unit 70 using the battery. It is possible to check the operation of 80 and communication section 70. However, it is only possible to check the operation in a state where the casing 11 is open, that is, in a state different from the operating state of the power transmission line monitoring device 101.
　そこで、本開示の実施の形態に係る送電線監視装置１０１、駆動用治具３０１および検査方法は、以下のような構成により、上記の課題を解決する。 Therefore, the power transmission line monitoring device 101, driving jig 301, and inspection method according to the embodiment of the present disclosure solves the above problems with the following configuration.
　＜駆動用治具＞
　図１４は、本開示の実施の形態に係る駆動用治具の構成を示す図である。図１４を参照して、駆動用治具３０１は、電源部３１０と、スイッチ３１４と、ヒューズ３１５と、負荷３１６と、巻線部３１７とを備える。電源部３１０は、バッテリ３１１と、ＤＣ／ＡＣ変換部３１２と、トランス３１３とを含む。巻線部３１７は、被覆線３１８を含む。被覆線３１８は、予め所定のターン数で巻かれた状態で束ねられていてもよいし、束ねられていなくてもよい。駆動用治具３０１は、送電線監視装置１０１を駆動するための治具である。 <Drive jig>
FIG. 14 is a diagram showing the configuration of a driving jig according to an embodiment of the present disclosure. Referring to FIG. 14, driving jig 301 includes a power supply section 310, a switch 314, a fuse 315, a load 316, and a winding section 317. Power supply section 310 includes a battery 311, a DC/AC conversion section 312, and a transformer 313. The winding portion 317 includes a covered wire 318. The covered wire 318 may be wrapped in a predetermined number of turns and bundled, or may not be bundled. The driving jig 301 is a jig for driving the power transmission line monitoring device 101.
　被覆線３１８の第１の端部は、ヒューズ３１５に接続される。被覆線３１８の第２の端部は、負荷３１６に接続される。後述するように、被覆線３１８は、送電線監視装置１０１におけるコア部材４１に巻回される。 A first end of the covered wire 318 is connected to the fuse 315. A second end of covered wire 318 is connected to load 316. As described later, the covered wire 318 is wound around the core member 41 in the power transmission line monitoring device 101.
　電源部３１０は、巻線部３１７および負荷３１６に交流電流を供給する。より詳細には、バッテリ３１１は、直流電力をＤＣ／ＡＣ変換部３１２へ出力する。ＤＣ／ＡＣ変換部３１２は、バッテリ３１１から受けた直流電力を５０Ｈｚまたは６０Ｈｚの交流電力に変換してトランス３１３へ出力する。トランス３１３は、ＤＣ／ＡＣ変換部３１２から受けた交流電力の電圧レベルを所定レベルに変換し、スイッチ３１４およびヒューズ３１５を介して被覆線３１８へ供給するとともに、負荷３１６へ供給する。 The power supply section 310 supplies alternating current to the winding section 317 and the load 316. More specifically, battery 311 outputs DC power to DC/AC converter 312 . The DC/AC converter 312 converts the DC power received from the battery 311 into 50 Hz or 60 Hz AC power and outputs the AC power to the transformer 313 . The transformer 313 converts the voltage level of the AC power received from the DC/AC converter 312 to a predetermined level, and supplies it to the covered wire 318 via the switch 314 and the fuse 315, and also to the load 316.
　負荷３１６は、巻線部３１７を通して流れる交流電流を設定する。より詳細には、負荷３１６の抵抗値に応じた交流電流が巻線部３１７に供給される。負荷３１６の抵抗値は、たとえば、巻線部３１７へ供給される交流電流の実効値が所定値となるように予め設定されている。 The load 316 sets the alternating current flowing through the winding section 317. More specifically, an alternating current depending on the resistance value of the load 316 is supplied to the winding portion 317 . The resistance value of the load 316 is set in advance so that, for example, the effective value of the alternating current supplied to the winding portion 317 is a predetermined value.
　なお、負荷３１６は、巻線部３１７を通して流れる交流電流の設定を調整可能であってもよい。より詳細には、負荷３１６は、可変抵抗であってもよい。 Note that the load 316 may be able to adjust the setting of the alternating current flowing through the winding portion 317. More specifically, load 316 may be a variable resistance.
　＜検査手順＞
　再び図１２を参照して、駆動用治具３０１を用いて送電線監視装置１０１の検査を行うユーザは、まず、コア部材４１が分割された状態で、送電線２０１に送電線監視装置１０１を固定する。 <Inspection procedure>
Referring again to FIG. 12, the user who inspects the power transmission line monitoring device 101 using the driving jig 301 first attaches the power transmission line monitoring device 101 to the power transmission line 201 with the core member 41 divided. Fix it.
　図１５は、本開示の実施の形態に係る駆動用治具を用いた送電線監視装置の検査手順を示す図である。 FIG. 15 is a diagram showing an inspection procedure for a power transmission line monitoring device using a driving jig according to an embodiment of the present disclosure.
　図１５を参照して、ユーザは、送電線２０１に送電線監視装置１０１を固定した後、分割されたコア部材４１のいずれか一方に、駆動用治具３０１の被覆線３１８を巻回する。より詳細には、巻線部３１７の一部が上側内筒２１Ｂの内部に収容されるように、予め所定のターン数で巻かれた状態で束ねられた被覆線３１８を含む巻線部３１７を、上側コア部材４１Ｂが収容される上側筐体１１Ｂに引っ掛ける。なお、被覆線３１８が束ねられていない場合、被覆線３１８を当該ターン数と同じ回数だけ上側筐体１１Ｂに巻き付ける。 Referring to FIG. 15, after fixing the power transmission line monitoring device 101 to the power transmission line 201, the user winds the covered wire 318 of the drive jig 301 around either one of the divided core members 41. More specifically, the winding portion 317 includes a covered wire 318 that is pre-wound with a predetermined number of turns and bundled so that a part of the winding portion 317 is accommodated inside the upper inner cylinder 21B. , is hooked onto the upper housing 11B in which the upper core member 41B is housed. Note that if the covered wire 318 is not bundled, the covered wire 318 is wound around the upper housing 11B the same number of turns as the number of turns.
　図１６は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す斜視図である。図１６は、送電線２０１に取り付けられ、かつ筐体１１を閉めた状態の送電線監視装置１０１を示している。 FIG. 16 is a perspective view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. FIG. 16 shows the power transmission line monitoring device 101 attached to the power transmission line 201 and with the housing 11 closed.
　図１７は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す正面図である。図１７は、送電線２０１に取り付けられ、かつ筐体１１を閉めた状態の送電線監視装置１０１を示している。 FIG. 17 is a front view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. FIG. 17 shows the power transmission line monitoring device 101 attached to the power transmission line 201 and with the housing 11 closed.
　図１６および図１７を参照して、ユーザは、分割されたコア部材４１を、送電線２０１を囲むように取り付ける。より詳細には、ユーザは、送電線監視装置１０１における筐体１１を閉めて、締結部１４Ａ，１４Ｂを互いにネジ締結する。これにより、被覆線３１８は、貫通孔１０を通って筐体１１に巻回された状態となる。すなわち、巻線部３１７は、コア部材４１に掛けられた状態となる。 Referring to FIGS. 16 and 17, the user attaches the divided core member 41 so as to surround the power transmission line 201. More specifically, the user closes the casing 11 of the power transmission line monitoring device 101 and screws the fastening parts 14A and 14B together. Thereby, the covered wire 318 passes through the through hole 10 and is wound around the housing 11 . That is, the winding portion 317 is in a state where it is hung around the core member 41.
　図１８は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す側面図である。図１８は、送電線２０１に取り付けられ、かつ筐体１１を閉めた状態の送電線監視装置１０１を示している。 FIG. 18 is a side view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. FIG. 18 shows the power transmission line monitoring device 101 attached to the power transmission line 201 and with the housing 11 closed.
　図１８を参照して、送電線２０１に送電線監視装置１０１を取り付けた状態において、上側筐体１１Ｂとクランプ上部１２Ｂとの間に、貫通孔１０に被覆線３１８を通すことが可能な隙間が形成される。より詳細には、送電線２０１の軸方向における、上側筐体１１Ｂとクランプ上部１２Ｂとの間に形成される隙間の長さＣ２は、たとえば２．２５ミリメートルである。 Referring to FIG. 18, when the power transmission line monitoring device 101 is attached to the power transmission line 201, there is a gap between the upper housing 11B and the upper clamp part 12B through which the covered wire 318 can be passed through the through hole 10. It is formed. More specifically, the length C2 of the gap formed between the upper housing 11B and the upper clamp portion 12B in the axial direction of the power transmission line 201 is, for example, 2.25 mm.
　図１９は、本開示の実施の形態に係る送電線監視装置の構成を概略的に示す断面図である。図１９は、図１８におけるＸＩＸ－ＸＩＸ線矢視断面図であり、送電線２０１に取り付けられ、かつ筐体１１を閉めた状態の送電線監視装置１０１を示している。 FIG. 19 is a cross-sectional view schematically showing the configuration of a power transmission line monitoring device according to an embodiment of the present disclosure. FIG. 19 is a sectional view taken along the line XIX-XIX in FIG. 18, and shows the power transmission line monitoring device 101 attached to the power transmission line 201 and with the casing 11 closed.
　図１７および図１９を参照して、送電線２０１に送電線監視装置１０１を取り付けた状態において、送電線２０１と送電線監視装置１０１におけるコア部材４１との間に、送電線２０１の延伸方向に沿ってコア部材４１に被覆線３１８を巻回可能な隙間１７が形成される。より詳細には、送電線２０１と筐体１１との間に、送電線２０１の延伸方向に沿って筐体１１に被覆線３１８を巻回可能な隙間１７が形成される。隙間１７は、送電線２０１に送電線監視装置１０１を取り付けた状態において、送電線２０１の延伸方向に沿ってコア部材４１に被覆線３１８を巻回可能な空間である。被覆線３１８は、隙間１７を通って筐体１１に巻回された状態となる。 With reference to FIGS. 17 and 19, when the power transmission line monitoring device 101 is attached to the power transmission line 201, there is a space between the power transmission line 201 and the core member 41 of the power transmission line monitoring device 101 in the extending direction of the power transmission line 201. A gap 17 is formed along which the covered wire 318 can be wound around the core member 41. More specifically, a gap 17 is formed between the power transmission line 201 and the casing 11 in which the covered wire 318 can be wound around the casing 11 along the extending direction of the power transmission line 201. The gap 17 is a space in which the covered wire 318 can be wound around the core member 41 along the extending direction of the power transmission line 201 when the power transmission line monitoring device 101 is attached to the power transmission line 201 . The covered wire 318 passes through the gap 17 and is wound around the housing 11 .
　被覆線３１８の太さは、送電線２０１に送電線監視装置１０１を取り付けた状態において、送電線監視装置１０１と送電線２０１との間に形成される隙間１７に、巻線部３１７のターン数の被覆線３１８を通すことが可能な太さである。 The thickness of the covered wire 318 is determined by the number of turns of the winding portion 317 in the gap 17 formed between the power transmission line monitoring device 101 and the power transmission line 201 when the power transmission line monitoring device 101 is attached to the power transmission line 201. It is thick enough to allow the covered wire 318 to pass through.
　より詳細には、送電線２０１の直径が４５．５ミリメートルであり、かつ貫通孔１０の直径が５０ミリメートルである場合、送電線２０１の径方向における、隙間１７の長さＣ１は、２．２５ミリメートルである。この場合、被覆線３１８の直径は、たとえば２ミリメートル以下に設定される。 More specifically, when the diameter of the power transmission line 201 is 45.5 mm and the diameter of the through hole 10 is 50 mm, the length C1 of the gap 17 in the radial direction of the power transmission line 201 is 2.25 mm. It is in millimeters. In this case, the diameter of the covered wire 318 is set to, for example, 2 mm or less.
　ユーザは、被覆線３１８が送電線２０１と筐体１１との間の隙間１７を通って巻回された状態において、駆動用治具３０１を用いて被覆線３１８に交流電流を供給する。これにより、送電線監視装置１０１における発電用ＣＴ４０は、巻線部３１７を通して流れる交流電流により巻線部３１７の周囲に生じる磁界変化から、電磁誘導により交流電力を発生させるので、送電線監視装置１０１における各ユニットが駆動する。ユーザは、送電線監視装置１０１における各ユニットを駆動させた状態において、送電線監視装置１０１の動作確認を行う。 The user supplies alternating current to the covered wire 318 using the driving jig 301 in a state where the covered wire 318 is wound through the gap 17 between the power transmission line 201 and the casing 11. As a result, the power generation CT 40 in the power transmission line monitoring device 101 generates AC power by electromagnetic induction from changes in the magnetic field generated around the winding portion 317 due to the alternating current flowing through the winding portion 317. Each unit in is driven. The user checks the operation of the power transmission line monitoring device 101 while driving each unit in the power transmission line monitoring device 101 .
　駆動用治具３０１では、たとえば、巻線部３１７を通して流れる交流電流を用いて発電用ＣＴ４０により発電される電力が送電線監視装置１０１の最低駆動電力Ｅ１以上となるように、被覆線３１８を通して流れる交流電流および巻線部３１７のターン数が設定されている。 In the driving jig 301, for example, the alternating current flowing through the winding portion 317 is used to flow through the covered wire 318 so that the power generated by the power generation CT 40 is equal to or higher than the minimum driving power E1 of the power transmission line monitoring device 101. The alternating current and the number of turns of the winding portion 317 are set.
　一例として、発電用ＣＴ４０に最低駆動電力Ｅ１以上の電力を発電させるために、巻線部３１７を通して５０アンペアの交流電流を流す必要がある場合、たとえば、トランス３１３により被覆線３１８へ供給される交流電流は１アンペアに設定され、巻線部３１７のターン数は５０に設定される。 As an example, when it is necessary to flow an alternating current of 50 amperes through the winding part 317 in order to cause the power generation CT 40 to generate power equal to or higher than the minimum driving power E1, for example, when an alternating current of 50 amperes needs to be passed through the winding part 317, for example, an alternating current supplied to the covered wire 318 by the transformer 313 The current is set to 1 ampere and the number of turns in winding section 317 is set to 50.
　＜検査方法＞
　図２０は、本開示の実施形態に係る駆動用治具を用いた送電線監視装置の検査を行う際の動作手順の一例を定めたフローチャートである。 <Inspection method>
FIG. 20 is a flowchart defining an example of an operation procedure when inspecting a power transmission line monitoring device using a driving jig according to an embodiment of the present disclosure.
　図２０を参照して、まず、駆動用治具３０１を用いて送電線監視装置１０１の検査を行うユーザは、図１２に示すように、コア部材４１が分割された状態で送電線２０１に送電線監視装置１０１を取り付ける（ステップＳ１１）。 Referring to FIG. 20, a user who inspects power transmission line monitoring device 101 using driving jig 301 first inspects power transmission line 201 with core member 41 divided, as shown in FIG. The wire monitoring device 101 is attached (step S11).
　次に、ユーザは、図１５に示すように、分割されたコア部材４１の一部に被覆線３１８を巻回する。より詳細には、ユーザは、巻線部３１７の一部が上側内筒２１Ｂの内部に収容されるように、予め所定のターン数で巻かれた状態で束ねられた被覆線３１８を、上側コア部材４１Ｂが収容される上側筐体１１Ｂに巻線部３１７を引っ掛ける（ステップＳ１２）。 Next, as shown in FIG. 15, the user winds the covered wire 318 around a portion of the divided core member 41. More specifically, the user attaches the coated wire 318, which has been wound and bundled in advance with a predetermined number of turns, to the upper core so that a part of the winding portion 317 is accommodated inside the upper inner cylinder 21B. The winding portion 317 is hooked onto the upper housing 11B in which the member 41B is accommodated (step S12).
　次に、ユーザは、図１６から図１９に示すように、筐体１１を閉めることにより、分割されたコア部材４１を、送電線２０１を囲むように取り付ける（ステップＳ１３）。 Next, as shown in FIGS. 16 to 19, the user closes the housing 11 and attaches the divided core members 41 so as to surround the power transmission line 201 (step S13).
　次に、ユーザは、駆動用治具３０１を用いて被覆線３１８に交流電流を供給して送電線監視装置１０１を駆動する（ステップＳ１４）。 Next, the user supplies alternating current to the covered wire 318 using the driving jig 301 to drive the power transmission line monitoring device 101 (step S14).
　次に、ユーザは、送電線監視装置１０１の動作確認を行う（ステップＳ１５）。 Next, the user checks the operation of the power transmission line monitoring device 101 (step S15).
　次に、ユーザは、被覆線３１８を切断して被覆線３１８をコア部材４１から取り外す。より詳細には、ユーザは、送電線監視装置１０１の動作確認後、筐体１１を開けることなく、被覆線３１８を切断し、被覆線３１８を筐体１１から取り外す（ステップＳ１６）。 Next, the user cuts the covered wire 318 and removes the covered wire 318 from the core member 41. More specifically, after confirming the operation of the power transmission line monitoring device 101, the user cuts the covered wire 318 and removes the covered wire 318 from the case 11 without opening the case 11 (step S16).
　なお、本開示の実施の形態に係る駆動用治具３０１では、被覆線３１８の太さは、送電線２０１に送電線監視装置１０１を取り付けた状態において、送電線監視装置１０１と送電線２０１との間に形成される隙間１７を通すことが可能な太さであるとしたが、これに限定するものではない。また、送電線監視装置１０１は、送電線２０１に送電線監視装置１０１を取り付けた状態において、送電線２０１と筐体１１との間に、送電線２０１の延伸方向に沿って筐体１１に被覆線３１８を巻回可能な、長さＣ１の隙間１７が形成される構成であるとしたが、これに限定するものではない。 In addition, in the driving jig 301 according to the embodiment of the present disclosure, the thickness of the covered wire 318 is the same as that between the power transmission line monitoring device 101 and the power transmission line 201 when the power transmission line monitoring device 101 is attached to the power transmission line 201. Although the thickness is such that it is possible to pass through the gap 17 formed between the two, the thickness is not limited to this. In addition, in a state where the power transmission line monitoring device 101 is attached to the power transmission line 201, the power transmission line monitoring device 101 is installed between the power transmission line 201 and the casing 11, and covers the casing 11 along the extending direction of the power transmission line 201. Although the configuration is such that the gap 17 having the length C1 is formed around which the wire 318 can be wound, the present invention is not limited to this.
　図２１は、本開示の実施の形態の変形例１に係る送電線監視装置の構成を概略的に示す正面図である。図２１は、送電線２０１に取り付けられ、かつ筐体１１を閉めた状態の送電線監視装置１０２を示している。図２１では、筐体１１の内部における、下側コア部材４１Ａおよび上側コア部材４１Ｂならびに下側内筒２１Ａおよび上側内筒２１Ｂを破線で示している。 FIG. 21 is a front view schematically showing the configuration of a power transmission line monitoring device according to Modification 1 of the embodiment of the present disclosure. FIG. 21 shows the power transmission line monitoring device 102 attached to the power transmission line 201 and with the housing 11 closed. In FIG. 21, the lower core member 41A, the upper core member 41B, the lower inner cylinder 21A, and the upper inner cylinder 21B inside the housing 11 are shown by broken lines.
　図２１を参照して、変形例１に係る送電線監視装置１０２では、上側筐体１１Ｂに、軸方向に延びる筒状の貫通孔１５が形成されている。貫通孔１５は、上側コア部材４１Ｂと上側内筒２１Ｂとの間に形成される。貫通孔１５は、送電線２０１に送電線監視装置１０１を取り付けた状態において、送電線２０１の延伸方向に沿ってコア部材４１に被覆線３１８を巻回可能な空間である。より詳細には、貫通孔１５の内径および被覆線３１８の太さは、貫通孔１５に被覆線３１８を駆動用治具３０１の巻線部３１７のターン数以上の回数通すことが可能な値に設定される。 Referring to FIG. 21, in the power transmission line monitoring device 102 according to Modification 1, a cylindrical through hole 15 extending in the axial direction is formed in the upper housing 11B. The through hole 15 is formed between the upper core member 41B and the upper inner cylinder 21B. The through hole 15 is a space in which the covered wire 318 can be wound around the core member 41 along the extending direction of the power transmission line 201 when the power transmission line monitoring device 101 is attached to the power transmission line 201 . More specifically, the inner diameter of the through hole 15 and the thickness of the coated wire 318 are set to values that allow the coated wire 318 to be passed through the through hole 15 a number of times greater than the number of turns of the winding portion 317 of the driving jig 301. Set.
　なお、貫通孔１５は、下側筐体１１Ａにおける、下側コア部材４１Ａと下側内筒２１Ａとの間に形成されてもよい。また、送電線監視装置１０２は、送電線２０１に送電線監視装置１０２を取り付けた状態において、送電線２０１と筐体１１との間に、送電線２０１の延伸方向に沿って筐体１１に被覆線３１８を巻回可能な隙間１７が形成されなくてもよい。 Note that the through hole 15 may be formed between the lower core member 41A and the lower inner cylinder 21A in the lower housing 11A. In addition, in a state where the power transmission line monitoring device 102 is attached to the power transmission line 201, the power transmission line monitoring device 102 is installed between the power transmission line 201 and the casing 11, and covers the casing 11 along the extending direction of the power transmission line 201. The gap 17 in which the wire 318 can be wound may not be formed.
　駆動用治具３０１を用いて送電線監視装置１０２の検査を行うユーザは、予め設定された巻線部３１７のターン数と同じ回数だけ貫通孔１５に被覆線３１８を繰り返し通すことにより、筐体に被覆線３１８を巻回する。貫通孔１５に被覆線３１８を通す工程は、送電線２０１に送電線監視装置１０１を固定する前に行ってもよいし、送電線２０１に送電線監視装置１０１を固定した後に行ってもよいし、締結部１４Ａ，１４Ｂを互いにネジ締結する前に行ってもよいし、締結部１４Ａ，１４Ｂを互いにネジ締結した後に行ってもよい。 A user who inspects the power transmission line monitoring device 102 using the drive jig 301 can repeatedly pass the covered wire 318 through the through-hole 15 the same number of turns as the preset number of turns of the winding portion 317 to remove the casing. The covered wire 318 is wound around. The step of passing the covered wire 318 through the through hole 15 may be performed before fixing the power transmission line monitoring device 101 to the power transmission line 201, or after fixing the power transmission line monitoring device 101 to the power transmission line 201. This may be done before the fastening parts 14A, 14B are screwed together, or after the fastening parts 14A, 14B are screwed together.
　図２２は、本開示の実施の形態の変形例２に係る送電線監視装置の構成を概略的に示す平面図である。図２２では、筐体１１の内部におけるコア部材４１および被覆線３１８を破線で示している。 FIG. 22 is a plan view schematically showing the configuration of a power transmission line monitoring device according to Modification 2 of the embodiment of the present disclosure. In FIG. 22, the core member 41 and the covered wire 318 inside the housing 11 are shown by broken lines.
　図２２を参照して、変形例２に係る送電線監視装置１０３は、送電線監視装置１０１と比べて、コア部材４１に巻回される被覆線３１８と、上側筐体１１Ｂに設けられた穴１６とをさらに備える。より詳細には、送電線監視装置１０３は、予めコア部材４１に巻回された被覆線３１８を含む巻線部３１７を備える。被覆線３１８の第１の端部３１８Ａおよび被覆線３１８の第２の端部３１８Ｂは、穴１６を介して筐体１１の外部に露出している。すなわち、巻線部３１７の一部は、上側収容部３１Ｂに収容されている。被覆線３１８は、送電線２０１に送電線監視装置１０３を取り付けた状態において送電線監視装置１０３の外部から交流電流の供給を受けることが可能である。より詳細には、送電線２０１に送電線監視装置１０３を取り付けた状態において、たとえば、被覆線３１８の第１の端部３１８Ａを駆動用治具３０１におけるヒューズ３１５に接続し、被覆線３１８の第２の端部３１８Ｂを駆動用治具３０１における負荷３１６に接続することにより、当該駆動用治具３０１を用いて被覆線３１８に交流電流を供給することができる。 Referring to FIG. 22, compared to power transmission line monitoring device 101, power transmission line monitoring device 103 according to modification 2 has a covered wire 318 wound around core member 41 and a hole provided in upper housing 11B. 16. More specifically, the power transmission line monitoring device 103 includes a winding section 317 that includes a covered wire 318 that is wound around the core member 41 in advance. A first end 318A of the covered wire 318 and a second end 318B of the covered wire 318 are exposed to the outside of the housing 11 through the hole 16. That is, a part of the winding part 317 is accommodated in the upper accommodation part 31B. The covered wire 318 can receive alternating current from outside the power transmission line monitoring device 103 when the power transmission line monitoring device 103 is attached to the power transmission line 201 . More specifically, with the power transmission line monitoring device 103 attached to the power transmission line 201, for example, the first end 318A of the covered wire 318 is connected to the fuse 315 in the drive jig 301, and the first end 318A of the covered wire 318 is By connecting the end portion 318B of 2 to the load 316 in the driving jig 301, alternating current can be supplied to the covered wire 318 using the driving jig 301.
　なお、巻線部３１７の一部は下側収容部３１Ａに収容されてもよいし、穴１６は下側筐体１１Ａに設けられてもよい。また、送電線監視装置１０３は、穴１６の代わりに、第１の端部３１８Ａおよび第２の端部３１８Ｂを筐体１１の外部に露出可能な端子を備える構成であってもよい。送電線監視装置１０３は、送電線監視装置１０２と同様に、送電線２０１に送電線監視装置１０３を取り付けた状態において、送電線２０１と筐体１１との間に、送電線２０１の延伸方向に沿って筐体１１に被覆線３１８を巻回可能な隙間１７が形成されなくてもよい。 Note that a part of the winding portion 317 may be accommodated in the lower housing portion 31A, and the hole 16 may be provided in the lower housing 11A. Further, the power transmission line monitoring device 103 may be configured to include a terminal that can expose the first end 318A and the second end 318B to the outside of the housing 11 instead of the hole 16. Similar to the power transmission line monitoring device 102 , the power transmission line monitoring device 103 is installed between the power transmission line 201 and the housing 11 in the extending direction of the power transmission line 201 when the power transmission line monitoring device 103 is attached to the power transmission line 201 . There is no need to form the gap 17 along which the covered wire 318 can be wound around the housing 11.
　送電線監視装置１０３の検査を行うユーザは、巻線部３１７を備えない駆動用治具３０１を用いて、送電線監視装置１０３の検査を行う。具体的には、ユーザは、送電線監視装置１０３の動作確認を行う際、送電線監視装置１０３における被覆線３１８の第１の端部３１８Ａを当該駆動用治具３０１におけるヒューズ３１５に接続し、当該被覆線３１８の第２の端部３１８Ｂを当該駆動用治具３０１における負荷３１６に接続する。 A user who inspects the power transmission line monitoring device 103 uses the driving jig 301 that does not include the winding portion 317 to inspect the power transmission line monitoring device 103. Specifically, when checking the operation of the power transmission line monitoring device 103, the user connects the first end 318A of the covered wire 318 in the power transmission line monitoring device 103 to the fuse 315 in the driving jig 301, The second end 318B of the covered wire 318 is connected to the load 316 in the driving jig 301.
　また、本開示の実施の形態に係る駆動用治具３０１では、巻線部３１７を通して流れる交流電流を用いて発電用ＣＴ４０により発電される電力が送電線監視装置１０１の最低駆動電力Ｅ１以上となるように、被覆線３１８を通して流れる交流電流および巻線部３１７のターン数が設定されている構成であるとしたが、これに限定するものではない。駆動用治具３０１では、被覆線３１８を通して流れる交流電流および巻線部３１７のターン数は、巻線部３１７を通して流れる交流電流を用いて発電用ＣＴ４０により発電される電力が、最低駆動電力Ｅ１未満であり、かつ温度センサ８０および通信部７０の少なくともいずれか一方を駆動可能な電力以上となるように設定されている構成であってもよい。 Furthermore, in the driving jig 301 according to the embodiment of the present disclosure, the power generated by the power generation CT 40 using the alternating current flowing through the winding portion 317 is equal to or higher than the minimum driving power E1 of the power transmission line monitoring device 101. Although the configuration is such that the alternating current flowing through the covered wire 318 and the number of turns of the winding portion 317 are set, the present invention is not limited to this. In the driving jig 301, the alternating current flowing through the covered wire 318 and the number of turns of the winding portion 317 are such that the power generated by the power generation CT 40 using the alternating current flowing through the winding portion 317 is less than the minimum driving power E1. In addition, the configuration may be such that the power is set to be greater than or equal to the power that can drive at least one of the temperature sensor 80 and the communication unit 70.
　また、本開示の実施の形態に係る駆動用治具３０１は、電源部３１０を備える構成であるとしたが、これに限定するものではない。駆動用治具３０１は、電源部３１０の一部または全部を備えない構成であってもよい。この場合、駆動用治具３０１は、外部から交流電流または直流電流の供給を受ける。 Further, although the driving jig 301 according to the embodiment of the present disclosure has a configuration including the power supply section 310, the present disclosure is not limited to this. The driving jig 301 may have a configuration in which part or all of the power supply section 310 is not provided. In this case, the driving jig 301 receives alternating current or direct current from the outside.
　また、本開示の実施の形態に係る送電線監視装置１０１は、計測用ＣＴ５０および温度センサ８０を備える構成であるとしたが、これに限定するものではない。送電線監視装置１０１は、計測用ＣＴ５０および温度センサ８０のいずれか一方を備えない構成であってもよい。また、送電線監視装置１０１は、計測用ＣＴ５０および温度センサ８０の代わりに、送電線２０１に関する計測を行う他のセンサを備える構成であってもよい。 Further, although the power transmission line monitoring device 101 according to the embodiment of the present disclosure has a configuration including the measurement CT 50 and the temperature sensor 80, the present disclosure is not limited to this. The power transmission line monitoring device 101 may be configured without either the measurement CT 50 or the temperature sensor 80. Moreover, the power transmission line monitoring device 101 may be configured to include another sensor that measures the power transmission line 201 instead of the measurement CT 50 and the temperature sensor 80.
　また、本開示の実施の形態に係る送電線監視装置１０１の検査方法は、ユーザが、被覆線３１８を切断して被覆線３１８をコア部材４１から取り外す工程を含む方法であるとしたが、これに限定するものではない。送電線監視装置１０１の検査方法は、被覆線３１８を切断して被覆線３１８をコア部材４１から取り外す工程を含まない一方で、被覆線３１８を駆動用治具３０１から取り外す工程を含んでもよい。すなわち、送電線監視装置１０１の検査後、被覆線３１８をコア部材４１から取り外すことなく、被覆線３１８がコア部材４１に巻回された状態で送電線監視装置１０１の運用を開始してもよい。 Furthermore, although the method for inspecting the power transmission line monitoring device 101 according to the embodiment of the present disclosure includes the step of the user cutting the covered wire 318 and removing the covered wire 318 from the core member 41, this It is not limited to. The method for inspecting the power transmission line monitoring device 101 does not include the step of cutting the covered wire 318 and removing the covered wire 318 from the core member 41, but may include the step of removing the covered wire 318 from the driving jig 301. That is, after the inspection of the power transmission line monitoring device 101, the operation of the power transmission line monitoring device 101 may be started with the covered wire 318 wound around the core member 41 without removing the covered wire 318 from the core member 41. .
　上記実施の形態は、すべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は、上記説明ではなく請求の範囲によって示され、請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。 The above embodiments should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is indicated by the claims rather than the above description, and it is intended that equivalent meanings and all changes within the scope of the claims are included.
　上述の実施形態の各処理（各機能）は、１または複数のプロセッサを含む処理回路（Ｃｉｒｃｕｉｔｒｙ）により実現される。上記処理回路は、上記１または複数のプロセッサに加え、１または複数のメモリ、各種アナログ回路、各種デジタル回路が組み合わされた集積回路等で構成されてもよい。上記１または複数のメモリは、上記各処理を上記１または複数のプロセッサに実行させるプログラム（命令）を格納する。上記１または複数のプロセッサは、上記１または複数のメモリから読み出した上記プログラムに従い上記各処理を実行してもよいし、予め上記各処理を実行するように設計された論理回路に従って上記各処理を実行してもよい。上記プロセッサは、ＣＰＵ（Ｃｅｎｔｒａｌ　Ｐｒｏｃｅｓｓｉｎｇ　Ｕｎｉｔ）、ＧＰＵ（Ｇｒａｐｈｉｃｓ　Ｐｒｏｃｅｓｓｉｎｇ　Ｕｎｉｔ）、ＤＳＰ（Ｄｉｇｉｔａｌ　Ｓｉｇｎａｌ　Ｐｒｏｃｅｓｓｏｒ）、ＦＰＧＡ（Ｆｉｅｌｄ　Ｐｒｏｇｒａｍｍａｂｌｅ　Ｇａｔｅ　Ａｒｒａｙ）、およびＡＳＩＣ（Ａｐｐｌｉｃａｔｉｏｎ　Ｓｐｅｃｉｆｉｃ　Ｉｎｔｅｇｒａｔｅｄ　Ｃｉｒｃｕｉｔ）等、コンピュータの制御に適合する種々のプロセッサであってよい。なお、物理的に分離した上記複数のプロセッサが互いに協働して上記各処理を実行してもよい。たとえば、物理的に分離した複数のコンピュータのそれぞれに搭載された上記プロセッサがＬＡＮ（Ｌｏｃａｌ　Ａｒｅａ　Ｎｅｔｗｏｒｋ）、ＷＡＮ　（Ｗｉｄｅ　Ａｒｅａ　Ｎｅｔｗｏｒｋ）、およびインターネット等のネットワークを介して互いに協働して上記各処理を実行してもよい。上記プログラムは、外部のサーバ装置等から上記ネットワークを介して上記メモリにインストールされても構わないし、ＣＤ－ＲＯＭ（Ｃｏｍｐａｃｔ　Ｄｉｓｃ　Ｒｅａｄ　Ｏｎｌｙ　Ｍｅｍｏｒｙ）、ＤＶＤ－ＲＯＭ（Ｄｉｇｉｔａｌ　Ｖｅｒｓａｔｉｌｅ　Ｄｉｓｋ　Ｒｅａｄ　Ｏｎｌｙ　Ｍｅｍｏｒｙ）、および半導体メモリ等の記録媒体に格納された状態で流通し、上記記録媒体から上記メモリにインストールされても構わない。 Each process (each function) of the above-described embodiment is realized by a processing circuit (Circuitry) including one or more processors. In addition to the one or more processors, the processing circuit may include an integrated circuit or the like in which one or more memories, various analog circuits, and various digital circuits are combined. The one or more memories store programs (instructions) that cause the one or more processors to execute each of the above processes. The one or more processors may execute each of the above processes according to the program read from the one or more memories, or may execute each of the above processes according to a logic circuit designed in advance to execute each of the above processes. May be executed. The above processors include a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), a DSP (Digital Signal Processor), and an FPGA (Field Programmer). various types that are compatible with computer control, such as mmable Gate Array) and ASIC (Application Specific Integrated Circuit). processor. Note that the plurality of physically separated processors may cooperate with each other to execute each of the above processes. For example, the processors installed in each of a plurality of physically separated computers cooperate with each other via networks such as a LAN (Local Area Network), a WAN (Wide Area Network), and the Internet to perform each of the above processes. May be executed. The above program may be installed in the above memory from an external server device etc. via the above network, or may be installed on a CD-ROM (Compact Disc Read Only Memory) or a DVD-ROM (Digital Versatile Disk Read Only Memory). memory), and semiconductors It may be distributed in a state stored in a recording medium such as a memory, and installed into the memory from the recording medium.
　以上の説明は、以下に付記する特徴を含む。
　［付記１］
　送電線を囲むための環状のコア部材を含む発電用ＣＴを備える送電線監視装置であって、
　前記送電線に前記送電線監視装置を取り付けた状態において、前記送電線と前記コア部材との間に、前記送電線の延伸方向に沿って前記コア部材に被覆線を巻回可能な空間が形成され、
　前記送電線は、架空伝送線である、送電線監視装置。 The above description includes the features noted below.
[Additional note 1]
A power transmission line monitoring device comprising a power generation CT including an annular core member for surrounding a power transmission line,
When the power transmission line monitoring device is attached to the power transmission line, a space is formed between the power transmission line and the core member in which a covered wire can be wound around the core member along the extending direction of the power transmission line. is,
The power transmission line monitoring device, wherein the power transmission line is an overhead transmission line.
　１０　貫通孔
　１１　筐体
　１１Ａ　下側筐体
　１１Ｂ　上側筐体
　１２　把持部
　１２Ａ　クランプ下部
　１２Ｂ　クランプ上部
　１３　ヒンジ部
　１４Ａ，１４Ｂ　締結部
　１５　貫通孔（空間）
　１６　穴
　１７　隙間（空間）
　２１Ａ　下側内筒
　２１Ｂ　上側内筒
　２２Ａ　下側外筒
　２２Ｂ　上側外筒
　２３Ａ，２４Ａ　下側蓋部
　２３Ｂ，２４Ｂ　上側蓋部
　３１Ａ　下側収容部
　３１Ｂ　上側収容部
　４０　発電用ＣＴ
　４１，５１　コア部材
　４１Ａ　下側コア部材
　４１Ｂ　上側コア部材
　４２　コイル
　５０　計測用ＣＴ（計測部）
　５１Ａ　下側コア部材
　５１Ｂ　上側コア部材
　５２　コイル
　６０　ＡＣ／ＤＣ変換部
　７０　通信部
　８０　温度センサ（計測部）
　９０　アンテナ
　１０１，２０１，３０１　送電線監視装置
　２０１　送電線
　３０１　駆動用治具
　３１０　電源部
　３１１　バッテリ
　３１２　ＤＣ／ＡＣ変換部
　３１３　トランス
　３１４　スイッチ
　３１５　ヒューズ
　３１６　負荷
　３１７　巻線部
　３１８　被覆線
　３１８Ａ　第１の端部
　３１８Ｂ　第２の端部 10 Through hole 11 Housing 11A Lower housing 11B Upper housing 12 Gripping portion 12A Lower clamp 12B Upper clamp 13 Hinge portion 14A, 14B Fastening portion 15 Through hole (space)
16 hole 17 gap (space)
21A Lower inner cylinder 21B Upper inner cylinder 22A Lower outer cylinder 22B Upper outer cylinder 23A, 24A Lower lid part 23B, 24B Upper lid part 31A Lower housing part 31B Upper housing part 40 CT for power generation
41, 51 Core member 41A Lower core member 41B Upper core member 42 Coil 50 Measurement CT (measurement section)
51A Lower core member 51B Upper core member 52 Coil 60 AC/DC conversion section 70 Communication section 80 Temperature sensor (measurement section)
90 Antenna 101, 201, 301 Power transmission line monitoring device 201 Power transmission line 301 Driving jig 310 Power supply section 311 Battery 312 DC/AC conversion section 313 Transformer 314 Switch 315 Fuse 316 Load 317 Winding section 318 Covered wire 318A First end Part 318B Second end

Claims (9)

  1. 　送電線を囲むための環状のコア部材を含む発電用ＣＴを備える送電線監視装置であって、
    　前記送電線に前記送電線監視装置を取り付けた状態において、前記送電線と前記コア部材との間に、前記送電線の延伸方向に沿って前記コア部材に被覆線を巻回可能な空間が形成される、送電線監視装置。     A power transmission line monitoring device comprising a power generation CT including an annular core member for surrounding a power transmission line,
    When the power transmission line monitoring device is attached to the power transmission line, a space is formed between the power transmission line and the core member in which a covered wire can be wound around the core member along the extending direction of the power transmission line. Power transmission line monitoring equipment.
  2. 　送電線を囲むための環状のコア部材を含む発電用ＣＴを備える送電線監視装置であって、
    　前記コア部材に巻回され、前記送電線に前記送電線監視装置を取り付けた状態において前記送電線監視装置の外部から交流電流の供給を受ける被覆線であって、前記発電用ＣＴに発電させるための前記被覆線を備える、送電線監視装置。     A power transmission line monitoring device comprising a power generation CT including an annular core member for surrounding a power transmission line,
    A covered wire that is wound around the core member and receives alternating current from outside the power transmission line monitoring device when the power transmission line monitoring device is attached to the power transmission line, and is used to cause the power generation CT to generate power. A power transmission line monitoring device comprising the covered wire.
  3. 　環状のコア部材を含む発電用ＣＴを備える送電線監視装置、を駆動するための駆動用治具であって、
    　前記コア部材に巻回される被覆線を含む巻線部であって、前記発電用ＣＴに発電させるための前記巻線部と、
    　前記巻線部を通して流れる交流電流を設定するための負荷と、を備える、駆動用治具。     A driving jig for driving a power transmission line monitoring device equipped with a power generation CT including an annular core member,
    a winding part including a covered wire wound around the core member, the winding part for causing the power generation CT to generate electricity;
    A driving jig, comprising: a load for setting an alternating current flowing through the winding section.
  4. 　前記巻線部を通して流れる交流電流を用いて前記発電用ＣＴにより発電される電力が前記送電線監視装置の最低駆動電力以上となるように、前記被覆線を通して流れる交流電流および前記巻線部のターン数が設定されている、請求項３に記載の駆動用治具。 The alternating current flowing through the covered wire and the turns of the winding section are arranged such that the power generated by the power generation CT using the alternating current flowing through the winding section is equal to or higher than the minimum driving power of the power transmission line monitoring device. The driving jig according to claim 3, wherein the number is set.
  5. 　送電線に前記送電線監視装置を取り付けた状態において、前記送電線監視装置と前記送電線との間に隙間が形成され、
    　前記被覆線の太さは、前記ターン数の前記被覆線を前記隙間に通すことが可能な太さである、請求項４に記載の駆動用治具。     When the power transmission line monitoring device is attached to the power transmission line, a gap is formed between the power transmission line monitoring device and the power transmission line,
    The driving jig according to claim 4, wherein the thickness of the covered wire is such that the number of turns of the covered wire can be passed through the gap.
  6. 　前記駆動用治具は、さらに、
    　前記巻線部および前記負荷に交流電流を供給する電源部を備える、請求項３から請求項５のいずれか１項に記載の駆動用治具。     The driving jig further includes:
    The driving jig according to any one of claims 3 to 5, further comprising a power supply section that supplies alternating current to the winding section and the load.
  7. 　前記負荷は、前記巻線部を通して流れる交流電流の設定を調整可能である、請求項３から請求項６のいずれか１項に記載の駆動用治具。 The driving jig according to any one of claims 3 to 6, wherein the load is capable of adjusting settings of an alternating current flowing through the winding portion.
  8. 　被覆線を含む駆動用治具を用いた、環状のコア部材を含む発電用ＣＴを備える送電線監視装置の検査方法であって、
    　前記コア部材が分割された状態で送電線に前記送電線監視装置を取り付けるステップと、
    　分割された前記コア部材の一部に前記被覆線を巻回するステップと、
    　分割された前記コア部材を、前記送電線を囲むように取り付けるステップと、
    　前記被覆線に交流電流を供給して前記送電線監視装置を駆動するステップとを含む、検査方法。     A method for inspecting a power transmission line monitoring device equipped with a power generation CT including an annular core member using a driving jig including a covered wire, the method comprising:
    attaching the power transmission line monitoring device to a power transmission line with the core member divided;
    winding the covered wire around a portion of the divided core member;
    attaching the divided core members so as to surround the power transmission line;
    An inspection method comprising the step of supplying alternating current to the covered wire to drive the power transmission line monitoring device.
  9. 　前記検査方法は、さらに、
    　前記送電線監視装置を駆動した後、前記被覆線を切断して前記被覆線を前記コア部材から取り外すステップを含む、請求項８に記載の検査方法。     The testing method further includes:
    The inspection method according to claim 8, further comprising the step of cutting the covered wire and removing the covered wire from the core member after driving the power transmission line monitoring device.
PCT/JP2023/017826 2022-08-24 2023-05-12 Power transmission line monitoring device, driving tool, and inspection method WO2024042788A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-133447 2022-08-24
JP2022133447 2022-08-24

Publications (1)

Publication Number Publication Date
WO2024042788A1 true WO2024042788A1 (en) 2024-02-29

Family

ID=90012984

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/017826 WO2024042788A1 (en) 2022-08-24 2023-05-12 Power transmission line monitoring device, driving tool, and inspection method

Country Status (1)

Country Link
WO (1) WO2024042788A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4815097Y1 (en) * 1968-10-08 1973-04-25
US20100013457A1 (en) * 2008-07-18 2010-01-21 Tollgrade Communications, Inc. Power Line Takeoff Clamp Assembly
JP2015083947A (en) * 2013-10-25 2015-04-30 三菱電機株式会社 Installation state determination method for measurement apparatus and current transformer
JP2015184003A (en) * 2014-03-20 2015-10-22 株式会社関電工 Testing coil of penetration type current transformer
WO2020095555A1 (en) * 2018-11-08 2020-05-14 Tdk株式会社 Electromagnetic induction-type power generation device
JP2020106507A (en) * 2018-12-27 2020-07-09 芳律 浜田 OCR tester
JP2020197478A (en) * 2019-06-04 2020-12-10 Tdk株式会社 Current transformer and electromagnetic induction type power generator using the same
JP2022065680A (en) * 2020-10-16 2022-04-28 住友電気工業株式会社 Communication device and communication system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4815097Y1 (en) * 1968-10-08 1973-04-25
US20100013457A1 (en) * 2008-07-18 2010-01-21 Tollgrade Communications, Inc. Power Line Takeoff Clamp Assembly
JP2015083947A (en) * 2013-10-25 2015-04-30 三菱電機株式会社 Installation state determination method for measurement apparatus and current transformer
JP2015184003A (en) * 2014-03-20 2015-10-22 株式会社関電工 Testing coil of penetration type current transformer
WO2020095555A1 (en) * 2018-11-08 2020-05-14 Tdk株式会社 Electromagnetic induction-type power generation device
JP2020106507A (en) * 2018-12-27 2020-07-09 芳律 浜田 OCR tester
JP2020197478A (en) * 2019-06-04 2020-12-10 Tdk株式会社 Current transformer and electromagnetic induction type power generator using the same
JP2022065680A (en) * 2020-10-16 2022-04-28 住友電気工業株式会社 Communication device and communication system

Similar Documents

Publication Publication Date Title
Negrea Electromagnetic flux monitoring for detecting faults in electrical machines
Tallam et al. A survey of methods for detection of stator-related faults in induction machines
US9255970B2 (en) On-line monitoring of stator insulation in motors and generators
US10215621B2 (en) Enhanced optical condition monitoring system for power transformer and method for operating power transformer
CN101995433B (en) Apparatus and method for bearing condition monitoring
Muller et al. A novel method to detect broken rotor bars in squirrel cage induction motors when interbar currents are present
CN111308346A (en) Method and system for detecting a fault in a field winding of a stator of a polyphase brushless exciter
KR20180073523A (en) Apparatus and method motor fault diagnosis
WO2024042788A1 (en) Power transmission line monitoring device, driving tool, and inspection method
US9453858B2 (en) Sensor device and method of manufacture and use
KR102202298B1 (en) Brushless synchronous generator having function of detecting rotator state
CN111983419B (en) Method and system for detecting diode faults in a multiphase brushless exciter rectifier
JP2006322857A (en) Storage battery impedance measuring method and tool for storage battery impedance measurement
US6882173B1 (en) Method and apparatus detecting shorted turns in an electric generator
EP3477828B1 (en) Rotating electrical machine and diagnostic method for the same
Altaf et al. Advancement of fault diagnosis and detection process in industrial machine environment
Ballal et al. Wing technique: A novel approach for the detection of stator winding inter-turn short circuit and open circuit faults in three phase induction motors
JP2007142065A (en) Zero-phase current transformer
CN103558504A (en) Inspection equipment for turn-to-turn short circuit of motor stator winding
JP5292666B2 (en) Coil testing equipment
JP7338496B2 (en) Electric wire physical quantity measuring device
JP5691298B2 (en) Abnormality diagnosis method for winding part of oil-filled transformer
Bhaskar et al. Search coil based condition monitoring technique for internal faults in converter transformer
JP2000002738A (en) Direct current leak detector
JP6895410B2 (en) Static device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23856907

Country of ref document: EP

Kind code of ref document: A1