CN111089999A - Parallel AC high-voltage line voltage measuring device and method - Google Patents
Parallel AC high-voltage line voltage measuring device and method Download PDFInfo
- Publication number
- CN111089999A CN111089999A CN202010084782.7A CN202010084782A CN111089999A CN 111089999 A CN111089999 A CN 111089999A CN 202010084782 A CN202010084782 A CN 202010084782A CN 111089999 A CN111089999 A CN 111089999A
- Authority
- CN
- China
- Prior art keywords
- voltage
- measuring
- metal
- tank body
- parallel
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/10—Measuring sum, difference or ratio
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
Abstract
The invention provides a parallel AC high-voltage line voltage measuring device and method. The measuring device comprises a high-voltage conductor, a metal tank body, a metal induction sheet and a measuring assembly. The invention realizes the parallel connection of the high-voltage conductor and the alternating-current high-voltage wire, and the disassembly can be realized only by disconnecting the alternating-current high-voltage wire and the high-voltage conductor. In addition, the metal tank body is grounded, the metal induction sheet is located at a low potential, the technical defects that a metal shell in the existing slice type voltage measuring device is at a high potential and the live replacement and offline calibration of a sensing part (measuring resistor) cannot be carried out are overcome, the live replacement and the offline calibration of the sensing part (measuring resistor) are realized, the measuring accuracy is improved, the transmission of signals detected by the measuring component can be realized through a transmission cable, a photoelectric conversion module and an optical fiber are not needed for transmission, and the cost is saved.
Description
Technical Field
The invention relates to the technical field of high-voltage line measurement, in particular to a parallel alternating-current high-voltage line voltage measuring device and method.
Background
The operating state of the power grid is generally represented by voltage and current in the power system, so that accurate measurement of the voltage and the current of the equipment is very important for operation and maintenance personnel to judge the safety state of the power grid and has great significance for stable operation of the power grid. Along with the deep construction of 'strong smart power grids' in China, the demand for accurately measuring the power frequency voltage of the overhead line is more and more urgent.
At present, voltage measurement in an electric power system is mainly realized through a voltage transformer, the traditional transformer has the disadvantages of large volume, difficulty in moving once being fixed, capability of detecting voltage at fixed points, frequent need of performing the installation process under the condition of power failure, high manufacturing cost due to the adoption of an iron core as a sensing component, and possibility of causing ferromagnetic resonance and the like due to the large use, so that the voltage measurement difficulty of a high-voltage transmission line in an area which is greatly limited by terrain is higher. And the slice formula voltage measurement device on the high-voltage bus that is applicable to the power frequency voltage measurement of AIS transformer substation's generating line among the prior art adopts the series connection mode to be connected with the generating line, and it is in the high potential, in case the installation then can't carry out electrified change and off-line calibration of sensing part, has influenced measuring accuracy.
Disclosure of Invention
The invention aims to provide a parallel AC high-voltage line voltage measuring device and method, so as to realize live replacement and off-line calibration of a sensing part (a measuring resistor in a measuring assembly) and improve the measuring accuracy.
In order to achieve the purpose, the invention provides the following scheme:
a parallel AC high-voltage line voltage measuring device comprises a high-voltage conductor, a metal tank body, a metal induction sheet and a measuring assembly;
a high-voltage conductor inlet is formed in the metal tank body, and one end of the high-voltage conductor is connected with an alternating-current high-voltage wire; the other end of the high-voltage conductor penetrates into the metal tank body through the high-voltage conductor inlet;
the metal induction sheet is a part cut off from the metal tank body and is arranged at the position of a cut of the metal tank body, and an insulating material is arranged between the metal induction sheet and the metal tank body;
one end of the measuring component is connected with the metal induction sheet, the other end of the measuring component is connected with the metal tank body, and the metal tank body is grounded.
Optionally, the measuring device further comprises an insulating sleeve and an insulating support sleeve;
the insulating sleeve and the insulating support sleeve are sleeved outside the high-voltage conductor;
the insulating support sleeve is positioned at the lower part of the insulating sleeve;
the insulating support sleeve is fixed at the inlet position of the high-voltage conductor of the metal tank body through a flange; and the other end of the high-voltage conductor penetrates through the insulating support sleeve to enter the metal tank body.
Optionally, the measuring device further comprises a wire lug connector;
and a wire pressing cylinder of the wire lug connecting piece is fixedly connected with one end of the high-voltage conductor, and a wiring terminal of the wire lug connecting piece is connected with the overhead wire through a wire pressing bolt.
Optionally, the measuring component includes a measuring resistance and a voltage measuring module;
one end of the measuring resistor is connected with the metal induction sheet, and the other end of the measuring resistor is connected with the metal tank body;
the voltage measuring module is connected with the measuring resistor in parallel.
Optionally, the measurement component further includes a shunt capacitor;
the parallel capacitor is connected in parallel with the measuring resistor.
Optionally, the measuring device further comprises a transmission cable and a voltage display module;
and the voltage display module is connected with the voltage measurement module through the transmission cable and used for calculating and displaying the voltage of the alternating-current high-voltage wire according to the voltage at the two ends of the measurement resistor measured by the voltage measurement module.
Optionally, a metal support frame is arranged at the lower end of the metal tank body;
the technical support frame comprises a metal shielding cylinder and a metal support base;
the metal shielding cylinder is fixedly connected between the metal tank body and the metal supporting base;
the metal induction sheet is positioned inside the connecting position of the upper port of the metal shielding cylinder and the lower surface of the metal tank body;
the measuring assembly is arranged inside the metal shielding cylinder.
Optionally, sulfur hexafluoride gas is filled in the metal tank.
A method for measuring the voltage of a parallel AC high-voltage line comprises the following steps:
determining a proportionality coefficient between voltages at two ends of the measuring resistor and the voltage of the alternating-current high-voltage wire in an experimental mode;
connecting one end of a high-voltage conductor of the measuring device with an alternating-current high-voltage wire;
measuring the voltage across the measuring resistor;
and calculating the voltage of the alternating-current high-voltage wire according to the voltage at the two ends of the measuring resistor and the proportionality coefficient.
Optionally, the determining, in an experimental manner, a proportionality coefficient between voltages at two ends of the measuring resistor and a voltage of the ac high-voltage line specifically includes:
connecting an output bus of the standard voltage transformer with a high-voltage conductor of a measuring device to build an experimental circuit;
measuring the voltage at two ends of a measuring resistor of a measuring device of the experimental circuit;
and calculating a proportional value of the voltage at the two ends of the measuring resistor and the output voltage of the standard voltage transformer as a proportional coefficient between the voltage at the two ends of the measuring resistor and the voltage of the alternating-current high-voltage wire.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention provides a parallel AC high-voltage line voltage measuring device and method. The measuring device comprises a high-voltage conductor, a metal tank body, a metal induction sheet and a measuring assembly; a high-voltage conductor inlet is formed in the metal tank body, and one end of the high-voltage conductor is connected with an alternating-current high-voltage wire; the other end of the high-voltage conductor penetrates into the metal tank body through the high-voltage conductor inlet; the metal induction sheet is a part cut off from the metal tank body and is arranged at the position of a cut of the metal tank body, and an insulating material is arranged between the metal induction sheet and the metal tank body; one end of the measuring component is connected with the metal induction sheet, and the other end of the measuring component is connected with the metal tank body. The invention realizes the parallel connection of the high-voltage conductor and the alternating-current high-voltage wire, and the disassembly can be realized only by disconnecting the alternating-current high-voltage wire and the high-voltage conductor. In addition, the metal tank body is grounded, the metal induction sheet is located at a low potential, the technical defects that the existing slice type voltage measuring device is at a high potential and can not carry out live replacement and offline calibration on the sensing part (measuring resistor) are overcome, the live replacement and the offline calibration of the sensing part (measuring resistor) are realized, the measuring accuracy is improved, the transmission of signals detected by the measuring component can be realized through a transmission cable, a photoelectric conversion module and an optical fiber are not needed for transmission, and the cost is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a parallel AC high-voltage line voltage measuring device according to the present invention;
description of the drawings: 1 is a line pressing bolt; 2 is a wire lug connecting piece; 3. a high voltage conductor; 4 is an insulating sleeve; 5 is an insulating support sleeve; 6 is a fastening bolt; 7 is a flange; 8 is sulfur hexafluoride gas; 9 is a metal tank body; 10 is a metal induction sheet; 11 is an insulating material; 12 is a measuring resistance; 13 is a parallel capacitor; 14 is a voltage measuring module; 15 is a transmission cable; 16 is a voltage display module; 17 is a metal shielding cylinder; and 18 is a metal support base.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a parallel AC high-voltage line voltage measuring device and a method thereof, and provides a high-voltage line measuring device which does not need to be switched on or switched off and is convenient to disassemble.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1, the invention provides a parallel ac high-voltage line voltage measuring device, which comprises a high-voltage conductor 3, a metal can 9, a metal sensing piece 10 and a measuring component; a high-voltage conductor inlet is formed in the metal tank body 9, and one end of the high-voltage conductor 3 is connected with an alternating-current high-voltage wire; the alternating-current high-voltage line is an alternating-current high-voltage bus or an overhead line, and the other end of the high-voltage conductor 3 penetrates into the metal tank body 9 through the high-voltage conductor inlet; sulfur hexafluoride gas is filled in the metal tank body 9. The metal induction sheet 10 is a part cut from the metal can body 9 and is arranged at the position of a cut of the metal can body 9, and an insulating material 11 is arranged between the metal induction sheet 10 and the metal can body 9; one end of the measuring component is connected with the metal induction sheet 10, the other end of the measuring component is connected with the metal tank body 9, and the metal tank body 9 is grounded. The high-voltage conductor 3 has strong mechanical strength, is connected with a vertical line or an overhead line of the alternating-current high-voltage bus through a lug connecting piece, and is a metal conductor with the same potential as the alternating-current high-voltage bus or the overhead line. The metal induction sheet 10 is a part cut from the surface of the metal tank body 9, and the metal induction sheet 10 is adhered to the cut again by using an insulating material; the insulating material 11 is positioned between the metal induction sheet 10 and the metal tank body 9 and is used for restoring the connection between the metal induction sheet and the metal tank body; the metal tank body is a hollow cylindrical metal shell which is filled with sulfur hexafluoride gas and is reliably grounded. The shape of the metal induction sheet 10 is a square or round metal sheet.
The measuring component comprises a measuring resistor 12, a parallel capacitor 13 and a voltage measuring module 14; one end of the measuring resistor 12 is connected with the metal induction sheet 10, and the other end of the measuring resistor 12 is connected with the metal tank body 9; the voltage measuring module 14 is connected in parallel with the measuring resistor 12. The parallel capacitor 13 is connected in parallel with the measuring resistor 12. The resistance range of the measuring resistor 12 is 20k omega-10M omega; the size range of the parallel capacitor 13 is 1 nF-10 uF.
The measuring device further comprises a transmission cable 15 and a voltage display module 16; the voltage display module 16 is connected to the voltage measurement module 14 through the transmission cable 15, and is configured to calculate and display the voltage of the ac high-voltage line according to the voltage at the two ends of the measurement resistor 12 measured by the voltage measurement module 14. And the voltage display module 16 calculates and displays the voltage of the overhead line by measuring the proportional relation between the voltage of the resistor and the voltage of the overhead line.
The measuring device also comprises an insulating sleeve 4 and an insulating support sleeve 5; the insulating sleeve 4 and the insulating support sleeve 5 are sleeved outside the high-voltage conductor 3; the insulating support sleeve 5 is positioned at the lower part of the insulating sleeve 4; the insulating support sleeve 5 is fixed at the inlet position of a high-voltage conductor of the metal tank body 9 through a flange 7; the other end of the high voltage conductor 3 passes through the insulating support sleeve 5 into the interior of the metal can 9. The insulating sleeve 4 is used for insulating the high-voltage conductor 3 externally, protecting the high-voltage conductor 3 from weather influence and electric corrosion, and providing a required creepage distance; the insulating support sleeve 5 is a part for connecting the high-voltage conductor 3 with the flange 7 and the metal tank body 9, provides a support effect for the high-voltage conductor 3 and ensures the electrical isolation between the high-voltage conductor 3 and the flange 7 as well as between the high-voltage conductor and the metal tank body 9; the fastening bolt 6 is a hardware fitting for connecting the flange 7 and the metal tank body 9, so that the flange 7 and the metal tank body 9 are ensured to be tightly connected; the flange 7 is a metal connecting piece for connecting the insulating support sleeve 5 with the metal tank body 9; is positioned on the upper surface of the metal can body 9. The flange 7 is a flange gasket fixed by using bolts.
The measuring device also comprises a wire lug connecting piece 2; and a wire pressing cylinder of the wire lug connecting piece 2 is fixedly connected with one end of the high-voltage conductor, and a wiring terminal of the wire lug connecting piece 2 is connected with the overhead wire through a wire pressing bolt 1. The wire pressing bolt is a hardware fitting for tightly connecting an overhead wire lead and a wire lug connecting piece together, and the wire lug connecting piece is a hardware fitting for connecting a high-voltage conductor and an overhead wire.
The lower end of the metal tank body is provided with a metal support frame; the technical support frame comprises a metal shielding cylinder 17 and a metal support base 18; the metal shielding cylinder 17 is fixedly connected between the metal tank 9 and the metal supporting base 18; the metal induction sheet 10 is positioned inside the connecting position of the upper port of the metal shielding cylinder 17 and the lower surface of the metal tank body 9; the measuring assembly (measuring resistor 12, parallel capacitor 13 and voltage measuring module 14) is arranged inside the metal shielding cylinder 17.
The invention also provides a method for measuring the voltage of the parallel AC high-voltage line, which comprises the following steps:
determining a proportionality coefficient between voltages at two ends of the measuring resistor and the voltage of the alternating-current high-voltage wire in an experimental mode; the method specifically comprises the following steps: connecting an output bus of the standard voltage transformer with a high-voltage conductor of a measuring device to build an experimental circuit; measuring the voltage at two ends of a measuring resistor of a measuring device of the experimental circuit; and calculating a proportional value of the voltage at the two ends of the measuring resistor and the output voltage of the standard voltage transformer as a proportional coefficient between the voltage at the two ends of the measuring resistor and the voltage of the alternating-current high-voltage wire. One end of a high-voltage conductor of the measuring device is connected with an alternating-current high-voltage wire. The voltage across the measuring resistor is measured. And calculating the voltage of the alternating-current high-voltage wire according to the voltage at the two ends of the measuring resistor and the proportionality coefficient.
The measurement principle is as follows: calculating the current flowing through the measuring resistor by applying ohm's law according to the voltage at the two ends of the measuring resistor and the resistance value of the measuring resistor to obtain a sinusoidal steady-state current; that is, the voltage across the measurement resistor is directly proportional to the sinusoidal steady state current. According to the phasor relation between the sinusoidal steady-state current and the charges, the charge quantity inside the metal induction sheet can be calculated. That is, the sinusoidal steady-state current is in direct proportion to the amount of charge inside the metal sensing piece. According to the fact that the electric field intensity is in direct proportion to the electric charge quantity and the voltage is in direct proportion to the electric field intensity, the voltage of the high-voltage conductor is in direct proportion to the electric charge quantity on the inner surface of the metal induction sheet. According to the fact that the voltage at the two ends of the measuring resistor and the sinusoidal steady-state current are in a direct proportion relation, the sinusoidal steady-state current and the electric charge amount inside the metal induction sheet are in a direct proportion relation, and the voltage of the high-voltage conductor is in direct proportion to the electric charge amount on the inner surface of the metal induction sheet, the voltage at the two ends of the measuring resistor and the voltage of the alternating-current high-voltage wire are in a direct proportion relation, and the voltage between the alternating-current high-voltage wires can be measured according to the voltage at the two ends of the measuring.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
compared with the existing voltage transformer measuring mode, the parallel AC high-voltage line voltage measuring device adopts the metal induction sheet as the sensing part, and has the advantages of simple structure, small volume, low cost, no ferromagnetic resonance and the like.
The parallel AC high-voltage line voltage measuring device is connected with an overhead line in a parallel mode, can directly acquire the voltage of the overhead line and is convenient to disassemble, off-line calibration can be achieved, and the precision of a measuring result is guaranteed.
According to the parallel AC high-voltage line voltage measuring device, the metal sensing part is located at a low potential, voltage signals can be transmitted through a cable, a photoelectric module with a built-in power supply is not needed to transmit the signals, and the cost is further reduced.
The parallel AC high-voltage line voltage measuring device has the advantages that the measuring assembly is arranged in the metal shielding cylinder 17, and the anti-electromagnetic interference capability is strong.
The equivalent embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts between the equivalent embodiments can be referred to each other.
The principle and the implementation manner of the present invention are explained by applying specific examples, the above description of the embodiments is only used to help understanding the method of the present invention and the core idea thereof, the described embodiments are only a part of the embodiments of the present invention, not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.
Claims (10)
1. A parallel AC high-voltage line voltage measuring device is characterized in that the measuring device comprises a high-voltage conductor, a metal tank body, a metal induction sheet and a measuring assembly;
a high-voltage conductor inlet is formed in the metal tank body, and one end of the high-voltage conductor is connected with an alternating-current high-voltage wire; the other end of the high-voltage conductor penetrates into the metal tank body through the high-voltage conductor inlet;
the metal induction sheet is a part cut off from the metal tank body and is arranged at the position of a cut of the metal tank body, and an insulating material is arranged between the metal induction sheet and the metal tank body;
one end of the measuring component is connected with the metal induction sheet, the other end of the measuring component is connected with the metal tank body, and the metal tank body is grounded.
2. A parallel ac high-voltage line voltage measuring device according to claim 1, further comprising an insulating sleeve and an insulating support sleeve;
the insulating sleeve and the insulating support sleeve are sleeved outside the high-voltage conductor;
the insulating support sleeve is positioned at the lower part of the insulating sleeve;
the insulating support sleeve is fixed at the inlet position of the high-voltage conductor of the metal tank body through a flange; and the other end of the high-voltage conductor penetrates through the insulating support sleeve to enter the metal tank body.
3. A parallel ac high-voltage line voltage measuring device according to claim 1, further comprising lug connections;
and a wire pressing cylinder of the wire lug connecting piece is fixedly connected with one end of the high-voltage conductor, and a wiring terminal of the wire lug connecting piece is connected with the overhead wire through a wire pressing bolt.
4. A parallel ac high-voltage line voltage measuring device according to claim 1, wherein said measuring assembly includes a measuring resistor and a voltage measuring module;
one end of the measuring resistor is connected with the metal induction sheet, and the other end of the measuring resistor is connected with the metal tank body;
the voltage measuring module is connected with the measuring resistor in parallel.
5. A parallel ac high-voltage line voltage measuring device according to claim 4, wherein said measuring assembly further includes a shunt capacitor;
the parallel capacitor is connected in parallel with the measuring resistor.
6. A parallel AC high-voltage line voltage measuring device according to claim 4, further comprising a transmission cable and a voltage display module;
and the voltage display module is connected with the voltage measurement module through the transmission cable and used for calculating and displaying the voltage of the alternating-current high-voltage wire according to the voltage at the two ends of the measurement resistor measured by the voltage measurement module.
7. A parallel ac high-voltage line voltage measuring device according to claim 1, wherein a metal support is provided at the lower end of said metal can;
the technical support frame comprises a metal shielding cylinder and a metal support base;
the metal shielding cylinder is fixedly connected between the metal tank body and the metal supporting base;
the metal induction sheet is positioned inside the connecting position of the upper port of the metal shielding cylinder and the lower surface of the metal tank body;
the measuring assembly is arranged inside the metal shielding cylinder.
8. A parallel ac high voltage line voltage measuring device according to claim 1, wherein said metal can is filled with sulfur hexafluoride gas.
9. A method for measuring the voltage of a parallel AC high-voltage line is characterized by comprising the following steps:
determining a proportionality coefficient between voltages at two ends of the measuring resistor and the voltage of the alternating-current high-voltage wire in an experimental mode;
connecting one end of a high-voltage conductor of the measuring device with an alternating-current high-voltage wire;
measuring the voltage across the measuring resistor;
and calculating the voltage of the alternating-current high-voltage wire according to the voltage at the two ends of the measuring resistor and the proportionality coefficient.
10. A method for measuring the voltage of a parallel AC high-voltage wire is characterized in that a proportionality coefficient between the voltage at two ends of a measuring resistor and the voltage of the AC high-voltage wire is determined in an experimental mode, and the method specifically comprises the following steps:
connecting an output bus of the standard voltage transformer with a high-voltage conductor of a measuring device to build an experimental circuit;
measuring the voltage at two ends of a measuring resistor of a measuring device of the experimental circuit;
and calculating a proportional value of the voltage at the two ends of the measuring resistor and the output voltage of the standard voltage transformer as a proportional coefficient between the voltage at the two ends of the measuring resistor and the voltage of the alternating-current high-voltage wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010084782.7A CN111089999B (en) | 2020-02-10 | 2020-02-10 | Parallel AC high-voltage line voltage measuring device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010084782.7A CN111089999B (en) | 2020-02-10 | 2020-02-10 | Parallel AC high-voltage line voltage measuring device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111089999A true CN111089999A (en) | 2020-05-01 |
| CN111089999B CN111089999B (en) | 2021-04-13 |
Family
ID=70399920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010084782.7A Active CN111089999B (en) | 2020-02-10 | 2020-02-10 | Parallel AC high-voltage line voltage measuring device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111089999B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034235A (en) * | 2020-09-07 | 2020-12-04 | 广东电网有限责任公司广州供电局 | Device and method suitable for measuring power frequency voltage of T-shaped cable connector |
| CN112946343A (en) * | 2021-01-29 | 2021-06-11 | 华北电力大学 | Overhead line power frequency voltage measuring device and measuring method |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003322675A (en) * | 2002-05-07 | 2003-11-14 | Meidensha Corp | Voltage divider for measuring arc voltage of switch interrupting test |
| CN1858599A (en) * | 2005-05-02 | 2006-11-08 | 三菱电机株式会社 | Voltage check device |
| CN201302916Y (en) * | 2008-12-30 | 2009-09-02 | 山东泰开互感器有限公司 | 765kv standard voltage transformer |
| CN202196110U (en) * | 2011-08-16 | 2012-04-18 | 厦门安普格电气有限公司 | Sensing type high-voltage post insulator sensor |
| CN202307490U (en) * | 2011-10-31 | 2012-07-04 | 许继集团有限公司 | Vertical coaxial capacitance structure pillar electronic voltage transformer |
| CN202307503U (en) * | 2011-10-31 | 2012-07-04 | 许继集团有限公司 | Electronic current and voltage combined transformer with high-voltage support pillar type suspension structure |
| CN106885934A (en) * | 2017-03-09 | 2017-06-23 | 华北电力大学 | A kind of bus voltage measurement device set up in three-phase integrated GIS tank bodies blind end |
| CN106896302A (en) * | 2017-03-23 | 2017-06-27 | 华北电力大学 | GIS device low-voltage conductor surface field strength meter and method |
| CN106932631A (en) * | 2017-03-09 | 2017-07-07 | 华北电力大学 | A kind of bus voltage measurement device set up in single-phase GIS tank bodies blind end |
| CN206378527U (en) * | 2016-12-30 | 2017-08-04 | 李战峰 | Voltage measurement system and voltage measuring apparatus |
| CN107064600A (en) * | 2017-03-09 | 2017-08-18 | 华北电力大学 | A kind of GIS bus voltage measurement devices set up in low-pressure tank body side surface |
| CN206945799U (en) * | 2017-06-05 | 2018-01-30 | 山东帅信电气有限公司 | Voltage sensor based on high voltage floating potential |
| CN207675829U (en) * | 2018-01-12 | 2018-07-31 | 国网安徽省电力有限公司淮南供电公司 | A kind of portable line influence voltage measuring apparatus |
| CN108872676A (en) * | 2018-06-04 | 2018-11-23 | 华北电力大学 | A kind of substation bus bar duplex frequency voltage measuring device |
| CN208224352U (en) * | 2018-06-15 | 2018-12-11 | 秦宇 | A kind of novel intelligent network distribution electric power signal sensor |
| CN109387745A (en) * | 2018-12-21 | 2019-02-26 | 云南电网有限责任公司电力科学研究院 | A kind of power distribution network over-voltage sensing device |
| CN110426547A (en) * | 2019-06-24 | 2019-11-08 | 中国电力科学研究院有限公司 | A kind of broadband GIS electronic voltage transformer device and measurement method |
| CN110542777A (en) * | 2019-09-29 | 2019-12-06 | 华北电力大学 | Three-phase integrated GIS independent bus voltage measuring device |
-
2020
- 2020-02-10 CN CN202010084782.7A patent/CN111089999B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003322675A (en) * | 2002-05-07 | 2003-11-14 | Meidensha Corp | Voltage divider for measuring arc voltage of switch interrupting test |
| CN1858599A (en) * | 2005-05-02 | 2006-11-08 | 三菱电机株式会社 | Voltage check device |
| CN201302916Y (en) * | 2008-12-30 | 2009-09-02 | 山东泰开互感器有限公司 | 765kv standard voltage transformer |
| CN202196110U (en) * | 2011-08-16 | 2012-04-18 | 厦门安普格电气有限公司 | Sensing type high-voltage post insulator sensor |
| CN202307490U (en) * | 2011-10-31 | 2012-07-04 | 许继集团有限公司 | Vertical coaxial capacitance structure pillar electronic voltage transformer |
| CN202307503U (en) * | 2011-10-31 | 2012-07-04 | 许继集团有限公司 | Electronic current and voltage combined transformer with high-voltage support pillar type suspension structure |
| CN206378527U (en) * | 2016-12-30 | 2017-08-04 | 李战峰 | Voltage measurement system and voltage measuring apparatus |
| CN106932631A (en) * | 2017-03-09 | 2017-07-07 | 华北电力大学 | A kind of bus voltage measurement device set up in single-phase GIS tank bodies blind end |
| CN106885934A (en) * | 2017-03-09 | 2017-06-23 | 华北电力大学 | A kind of bus voltage measurement device set up in three-phase integrated GIS tank bodies blind end |
| CN107064600A (en) * | 2017-03-09 | 2017-08-18 | 华北电力大学 | A kind of GIS bus voltage measurement devices set up in low-pressure tank body side surface |
| CN106896302A (en) * | 2017-03-23 | 2017-06-27 | 华北电力大学 | GIS device low-voltage conductor surface field strength meter and method |
| CN206945799U (en) * | 2017-06-05 | 2018-01-30 | 山东帅信电气有限公司 | Voltage sensor based on high voltage floating potential |
| CN207675829U (en) * | 2018-01-12 | 2018-07-31 | 国网安徽省电力有限公司淮南供电公司 | A kind of portable line influence voltage measuring apparatus |
| CN108872676A (en) * | 2018-06-04 | 2018-11-23 | 华北电力大学 | A kind of substation bus bar duplex frequency voltage measuring device |
| CN208224352U (en) * | 2018-06-15 | 2018-12-11 | 秦宇 | A kind of novel intelligent network distribution electric power signal sensor |
| CN109387745A (en) * | 2018-12-21 | 2019-02-26 | 云南电网有限责任公司电力科学研究院 | A kind of power distribution network over-voltage sensing device |
| CN110426547A (en) * | 2019-06-24 | 2019-11-08 | 中国电力科学研究院有限公司 | A kind of broadband GIS electronic voltage transformer device and measurement method |
| CN110542777A (en) * | 2019-09-29 | 2019-12-06 | 华北电力大学 | Three-phase integrated GIS independent bus voltage measuring device |
Non-Patent Citations (2)
| Title |
|---|
| CHANGHYUN CHO 等: "Design and implementation of on-chip embedded current probe using magnetic field coupling in chip to chip wireless power transfer system", 《2012 IEEE MTT-S INTERNATIONAL MICROWAVE WORKSHOP SERIES ON INNOVATIVE WIRELESS POWER TRANSMISSION: TECHNOLOGIES, SYSTEMS, AND APPLICATIONS》 * |
| 王璐: "高压直流输电线路电晕放电空间电荷测量系统研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034235A (en) * | 2020-09-07 | 2020-12-04 | 广东电网有限责任公司广州供电局 | Device and method suitable for measuring power frequency voltage of T-shaped cable connector |
| CN112034235B (en) * | 2020-09-07 | 2023-06-27 | 广东电网有限责任公司广州供电局 | Device and method suitable for power frequency voltage measurement of cable T-shaped connector |
| CN112946343A (en) * | 2021-01-29 | 2021-06-11 | 华北电力大学 | Overhead line power frequency voltage measuring device and measuring method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111089999B (en) | 2021-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201955421U (en) | Wiring detector for multifunctional electric energy metering device | |
| CN111089999B (en) | Parallel AC high-voltage line voltage measuring device and method | |
| US11977105B2 (en) | Current and voltage measuring unit | |
| CN108872676B (en) | A kind of substation bus bar duplex frequency voltage measuring device | |
| CN104122526B (en) | High voltage electric energy meter with metering unit capable of being charged to replace | |
| CN111273070B (en) | Tandem type alternating-current high-voltage bus measuring device and method | |
| CN109031075A (en) | A kind of multi-thread core insulation automatic tester and system | |
| CN103901276B (en) | A kind of measurement Apparatus and method in high-voltage dc detection oilpaper electrical conductivity | |
| CN206479609U (en) | A kind of miniaturization Large Copacity pressure-resistant apparatus tested for GIS | |
| CN208921826U (en) | A kind of multi-thread core insulation automatic tester and system | |
| CN201221967Y (en) | Material position detecting device | |
| CN102928641A (en) | Electronic current transformer | |
| CN109668878A (en) | A kind of enameled wire breakage test equipment and its test method | |
| CN109001519A (en) | A kind of electrification positioning cable outer jacket breaks the apparatus and method of protective metal shell grounding point outside | |
| CN113608013A (en) | Non-contact electricity utilization detection device and detection method thereof | |
| CN111856376A (en) | Signal acquisition method of wireless PT based on electro-optical effect sensing technology | |
| CN209640229U (en) | A kind of enameled wire breakage test equipment | |
| CN209280166U (en) | A kind of wireless temperature measuring device and temperature monitoring system | |
| CN111679114A (en) | Direct current on-line measuring device for distributed energy efficiency calibration | |
| CN202189673U (en) | Electromagnetism-electron mixing current transformer | |
| CN205786989U (en) | A kind of insulator null value high-precision detection device | |
| CN105225816A (en) | A kind of current transformer with high voltage standard capacitor function | |
| CN110780221A (en) | Electrical measurement system for source end of circuit breaker on primary and secondary fusion complete set of column | |
| RU203226U1 (en) | AUTOMATED POINT OF COMMERCIAL METERING OF ELECTRICITY 6 (10) KV | |
| CN108711771B (en) | Novel HGIS integrated combined optical transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |