CN113433370B - Current measuring method and device in power grid - Google Patents
Current measuring method and device in power grid Download PDFInfo
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- CN113433370B CN113433370B CN202110427022.6A CN202110427022A CN113433370B CN 113433370 B CN113433370 B CN 113433370B CN 202110427022 A CN202110427022 A CN 202110427022A CN 113433370 B CN113433370 B CN 113433370B
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- 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
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
Abstract
The invention discloses a current measuring method in a power grid and a device thereof, comprising a first shell and a second shell, wherein the bottom of the first shell is rotationally connected with the second shell through a hinge, the top of the first shell is provided with a placing groove, one side of the top of the second shell is fixedly connected with a clamping block, two sides of the clamping block are symmetrically provided with limiting grooves, and two ends of the clamping block are symmetrically provided with first sliding grooves. The problem of people to the measurement of different voltages is solved, the application range of device has been improved.
Description
Technical Field
The invention relates to the technical field of current measurement, in particular to a current measurement method and a current measurement device in a power grid.
Background
In an electric power system, a power grid is a general name of facilities and equipment for connecting power generation and power utilization, belongs to an intermediate link for transmitting and distributing electric energy, and mainly comprises a power transmission line, a power substation, a power distribution substation and a power distribution line which are connected into a network, and a general whole of connecting power generation and power utilization consisting of power transmission, power transformation, power distribution equipment and corresponding auxiliary systems is called as an electric power grid. In the power transmission and distribution voltage grades of a power grid, 6 kv, 10 kv, 20 kv, 35 kv and 66 kv are medium voltages, 110 kv and 220 kv are high voltages, 330 kv, 500 kv and 750 kv are ultrahigh voltages, and dc 800 kv and ac 1000 kv and above are extra-high voltages.
Therefore, a current measuring method and a device thereof in a power grid are provided.
Disclosure of Invention
The present invention is directed to a method and an apparatus for measuring current in a power grid, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a current measuring device in a power grid comprises a first shell and a second shell, wherein the bottom of the first shell is rotatably connected with the second shell through a hinge, the first shell and the second shell are made of hard rubber insulating materials, a placing groove is formed in the top of the first shell, a clamping block is fixedly connected to one side of the top of the second shell, limiting grooves are symmetrically formed in two sides of the clamping block, first sliding grooves are symmetrically formed in two ends of the placing groove, a first sliding block is slidably connected inside the first sliding grooves, a first spring is fixedly connected to the end, close to the first sliding grooves, of the first shell, one end, far away from the first shell, of the first spring is slidably connected with the first sliding block, the first sliding block is slidably connected with the limiting grooves, a pushing block is fixedly connected to the top of the first sliding block, and a measuring device is fixedly connected to the inside of the first shell, and the middle part of the inner wall of the first shell is fixedly connected with an adjusting device matched with the measuring device.
Preferably, the measuring device comprises a first semicircular groove, a second semicircular groove, an electric wire, a second spring, a first connecting block, a second connecting block, an ammeter and a voltmeter, wherein the first semicircular groove is symmetrically formed at two ends of the first shell, the second semicircular groove is symmetrically formed at two ends of the second shell, the electric wire is slidably connected between the first semicircular groove and the second semicircular groove, the second spring is symmetrically and fixedly connected to the inner wall of the first shell, one ends of the plurality of second springs, which are far away from the first shell, are respectively and fixedly connected with the first connecting block and the second connecting block, the lower end of the first shell, which is close to the first connecting block, is fixedly connected with the ammeter, the wire inlet end of the ammeter is electrically connected with the first connecting block through a wire, the wire outlet end of the ammeter is connected with the adjusting device, the lower end of the first shell, which is close to the second connecting block, is fixedly connected with the voltmeter, the wire inlet end of the voltmeter is connected with the adjusting device through a wire, and the wire outlet end of the voltmeter is electrically connected with the second connecting block.
Preferably, the adjusting device comprises fixed blocks, a movable block, a second chute, a threaded rod, a motor, a first connecting bulge, a resistance wire and a second connecting bulge, the fixed blocks are symmetrically and fixedly connected to the middle part of the inner wall of the first shell, the movable block is slidably connected to the middle part of the fixed blocks, the second chute is arranged at the middle part of the fixed blocks, the movable block is slidably connected to the second chute, the threaded rod is rotatably connected to the middle part of the second chute through a bearing, the threaded hole is arranged at the middle part of the movable block, the movable block is in threaded connection with the threaded rod through the threaded hole, the motor is fixedly connected to the top of the first shell close to the fixed blocks, the output end of the motor penetrates through the fixed blocks to be fixedly connected to the threaded rod, the first connecting bulge is symmetrically and fixedly connected to the inside of the second chute, the resistance wire is fixedly connected to the two fixed blocks at equal intervals, the resistance wire is electrically connected with the first connecting bulges, one side of the moving block, which is close to the resistance wire, is fixedly connected with the second connecting bulges, and the second connecting bulges are electrically connected with the first connecting bulges.
Preferably, the inner wall fixedly connected with PLC controller of first shell, and motor, ampere meter and voltmeter all with PLC controller electric connection.
Preferably, the motor is a reduction motor.
Preferably, an inclined plane is formed at one end, far away from the first spring, of the first sliding block.
Preferably, a through groove is formed in one side of the first shell, a rubber sealing block is fixedly connected to one side of the second shell, and the rubber sealing block is clamped with the through groove.
The invention also comprises a current measuring method in the power grid, which comprises the following steps:
1) people bring the device to the power grid wire, open the first shell and the second shell, and fix the wire after passing through the first semicircular groove and the second semicircular groove;
2) the first shell and the second shell are attached by rotating the first shell and the second shell, the inclined plane of the first sliding block is extruded through the clamping block, the first sliding block is driven to slide in the first sliding groove, and when the clamping block reaches the final position, the first sliding block slides into the limiting groove by the pushing of the first spring, so that the device is fixed, and meanwhile, the second spring pushes the first connecting block and the second connecting block to attach the electric wire;
3) when the current of the electric wire in the power grid is measured, the motor rotates to drive the threaded rod to rotate, the moving block is driven to slide in the second sliding groove, different resistance wires are selected according to voltage data in the electric wire at the moment, the first connecting bulge is driven to move to the second connecting bulge, the measuring device is switched on, the voltage in the measuring device is half of the voltage in the electric wire at the moment, meanwhile, the PLC records the data of the ammeter and the voltmeter, and the current I real in the electric wire is calculated to be 2U real/R real through a calculation current formula I;
4) the PLC transmits the measured current data to a monitoring room;
5) when the voltage is introduced into the electric wire to change, the resistance wire matched with the voltage for use is changed through the operation of the motor;
6) when the device is not used, the moving block is driven to move to a position without the resistance wire through the operation of the motor, and then the device can be disconnected.
Compared with the prior art, the invention has the beneficial effects that:
when the device is used, the first shell and the second shell are opened, then the wires are fixed through the first semicircular groove and the second semicircular groove, the first shell and the second shell are attached through rotating, the inclined plane of the first sliding block is extruded through the clamping block, the inclined plane slides into the limiting groove through the pushing of the first spring, the device is fixed, the moving block is driven by the adjusting device to move to a resistance wire for voltage data processing in the wires when the moving block moves to the position, meanwhile, the PLC records the data of the ammeter and the voltmeter, transmits the measured current data to the monitoring room, when the voltage in the wires is changed, the resistance wire matched with the voltage for use can be changed through the operation of the motor, when the device is not used, the moving block is driven by the operation of the motor to move to the position without the resistance wire, the device can be broken, and the problem of people on the measurement of different voltages is solved, the application range of the device is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the expanded structure of the present invention;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is a schematic structural diagram of a measuring device according to the present invention;
FIG. 5 is a schematic view of an adjusting device according to the present invention;
fig. 6 is an enlarged view of a portion a in fig. 2.
In the figure: 1. a first housing; 2. a second housing; 3. a placement groove; 4. a clamping block; 5. a limiting groove; 6. a first chute; 7. a first slider; 8. a first spring; 9. a push block; 10. a measuring device; 11. an adjustment device; 12. a first semicircular groove; 13. a second semi-circular groove; 14. an electric wire; 15. a second spring; 16. a first connection block; 17. a second connecting block; 18. an ammeter; 19. a voltmeter; 20. a fixed block; 21. a moving block; 22. a second chute; 23. a threaded rod; 24. a motor; 25. a first connecting projection; 26. a resistance wire; 27. a second connecting projection; 28. a PLC controller; 29. a through groove; 30. and (4) a rubber sealing block.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1, 2, 3, 4, 5 and 6, a current measuring device in a power grid in the figure includes a first housing 1 and a second housing 2, a bottom of the first housing 1 is rotatably connected to the second housing 2 through a hinge, a placing groove 3 is formed at a top of the first housing 1, a fixture block 4 is fixedly connected to one side of a top of the second housing 2, two sides of the fixture block 4 are symmetrically provided with a limiting groove 5, two ends of the placing groove 3 are symmetrically provided with first sliding grooves 6, a first sliding block 7 is slidably connected to an inside of the first sliding grooves 6, an inclined surface is formed at one end of the first sliding block 7 far from the first spring 8, so that the fixture block 4 can conveniently extrude the first sliding block 7 to move the first sliding block 7, a first spring 8 is fixedly connected to a tail end of the first housing 1 close to the first sliding grooves 6, one end of the first spring 8 far from the first housing 1 is slidably connected to the first sliding block 7, the removal of first slider 7 can be realized to thrust through first spring 8, carry out the joint to spacing groove 5, first slider 7 and 5 sliding connection in spacing groove, top fixedly connected with ejector pad 9 of first slider 7, the inside fixedly connected with measuring device 10 of first shell 1, the inner wall middle part fixedly connected with of first shell 1 and measuring device 10 matched with adjusting device 11, logical groove 29 has been seted up to one side of first shell 1, one side fixedly connected with rubber seal block 30 of second shell 2, and rubber seal block 30 and logical groove 29 joint, seal the device, prevent the inside intake of device, first shell 1 and second shell 2 are a stereoplasm rubber insulating material, protect the device, prevent the device outside electric leakage.
Referring to fig. 1, 2 and 4, the measuring device 10 includes a first semicircular groove 12, a second semicircular groove 13, an electric wire 14, a second spring 15, a first connecting block 16, a second connecting block 17, an ammeter 18 and a voltmeter 19, wherein the first semicircular groove 12 is symmetrically formed at two ends of the first housing 1, the second semicircular groove 13 is symmetrically formed at two ends of the second housing 2, the electric wire 14 is slidably connected between the first semicircular groove 12 and the second semicircular groove 13, the second spring 15 is symmetrically and fixedly connected to an inner wall of the first housing 1, one ends of the second springs 15 far from the first housing 1 are respectively and fixedly connected with the first connecting block 16 and the second connecting block 17, the lower end of the first housing 1 near the first connecting block 16 is fixedly connected with the ammeter 18, the inlet end of the ammeter 18 is electrically connected with the first connecting block 16 through a wire, the outlet end of the ammeter 18 is connected with the adjusting device 11, the lower end of the first housing 1 near the second connecting block 17 is fixedly connected with the voltmeter 19, the inlet wire end of voltmeter 19 passes through the wire and is connected with adjusting device 11, voltmeter 19's outlet terminal and second connecting block 17 electric connection, the inner wall fixedly connected with PLC controller 28 of first shell 1, and motor 24, ampere meter 18 and voltmeter 19 all with PLC controller 28 electric connection, measure the electric current through measuring device 10 and PLC controller 28, realize the measurement to eminence electric wire 14, solve the measurement of people to different voltages.
Referring to fig. 1, 2, 4, 5 and 6, the adjusting device 11 includes a fixed block 20, a moving block 21, a second sliding groove 22, a threaded rod 23, a motor 24, a first connecting protrusion 25, a resistance wire 26 and a second connecting protrusion 27, the fixed block 20 is symmetrically and fixedly connected to the middle of the inner wall of the first housing 1, the moving block 21 is slidably connected to the middle of the fixed block 20, the second sliding groove 22 is formed in the middle of the fixed block 20, the moving block 21 is slidably connected to the second sliding groove 22, the threaded rod 23 is rotatably connected to the middle of the second sliding groove 22 through a bearing, a threaded hole is formed in the middle of the moving block 21, the moving block 21 is in threaded connection with the threaded rod 23 through the threaded hole, the motor 24 is fixedly connected to the top of the first housing 1 near the fixed block 20, the motor 24 is a speed reduction motor 24, so as to realize accurate movement of the moving block 21 and realize connection accuracy of internal circuits of the device, the output end of the motor 24 penetrates through the fixing blocks 20 and is fixedly connected with the threaded rod 23, the first connecting protrusion 25 is fixedly connected with the inner part of the second chute 22 symmetrically, the resistance wire 26 is fixedly connected between the two fixing blocks 20 at equal intervals, the resistance wire 26 is electrically connected with the first connecting protrusion 25, the moving block 21 is close to the second connecting protrusion 27 which is fixedly connected with one side of the resistance wire 26, the second connecting protrusion 27 is electrically connected with the first connecting protrusion 25, the connecting point of the resistance wire 26 is changed, the safety of current measurement when different voltages are conveyed is achieved, and the application range of the device is widened.
The invention also comprises a current measuring method in the power grid, wherein the measuring method comprises the following steps:
1) people bring the device to a power grid wire 14, open the first shell 1 and the second shell 2, and fix the wire 14 after passing through the first semicircular groove 12 and the second semicircular groove 13;
2) the first shell 1 and the second shell 2 are attached by rotating the first shell 1 and the second shell 2, the inclined plane of the first sliding block 7 is extruded through the clamping block 4, the first sliding block 7 is driven to slide in the first sliding groove 6, after the clamping block 4 reaches the final position, the first sliding block 7 slides into the limiting groove 5 through the pushing of the first spring 8, the device is fixed, and meanwhile, the second spring 15 pushes the first connecting block 16 and the second connecting block 17 to attach the electric wire 14;
3) when the current of the electric wire 14 in the power grid is measured, the motor 24 rotates to drive the threaded rod 23 to rotate, the moving block 21 is driven to slide in the second sliding groove 22, different resistance wires 26 are selected according to voltage data in the electric wire 14 at the moment, the first connecting bulge 25 is driven to move to the second connecting bulge 27, the measuring device 10 is switched on, the voltage in the measuring device 10 is half of the voltage in the electric wire 14 at the moment, meanwhile, the PLC controller 28 records data of the ammeter 18 and the voltmeter 19, and the current I real in the electric wire 14 is calculated to be 2U real/R real by calculating a current formula I;
4) the PLC 28 transmits the measured current data to the monitoring room;
5) when the voltage in the electric wire 14 is changed, the resistance wire 26 matched with the voltage is changed through the operation of the motor 24;
6) when the device is not in use, the motor 24 drives the moving block 21 to move to the position without the resistance wire 26, and then the device can be disconnected.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A current measuring device in an electric network, comprising a first housing (1) and a second housing (2), characterized in that: the bottom of the first shell (1) is rotatably connected with the second shell (2) through a hinge, the first shell (1) and the second shell (2) are made of hard rubber insulating materials, a placing groove (3) is formed in the top of the first shell (1), a clamping block (4) is fixedly connected to one side of the top of the second shell (2), limiting grooves (5) are symmetrically formed in two sides of the clamping block (4), first sliding grooves (6) are symmetrically formed in two ends of the placing groove (3), a first sliding block (7) is slidably connected to the inside of each first sliding groove (6), a first spring (8) is fixedly connected to the tail end, close to the first sliding groove (6), of the first shell (1), one end, far away from the first shell (1), of the first spring (8) is slidably connected with a first sliding block (7), and the first sliding block (7) is slidably connected with the limiting grooves (5), the top of the first sliding block (7) is fixedly connected with a pushing block (9), the inside of the first shell (1) is fixedly connected with a measuring device (10), and the middle part of the inner wall of the first shell (1) is fixedly connected with an adjusting device (11) matched with the measuring device (10);
the measuring device (10) comprises a first semicircular groove (12), a second semicircular groove (13), an electric wire (14), a second spring (15), a first connecting block (16), a second connecting block (17), an ammeter (18) and a voltmeter (19), wherein the first semicircular groove (12) is symmetrically formed in two ends of the first shell (1), the second semicircular groove (13) is symmetrically formed in two ends of the second shell (2), the electric wire (14) is slidably connected between the first semicircular groove (12) and the second semicircular groove (13), the second spring (15) is symmetrically and fixedly connected to the inner wall of the first shell (1), one ends, far away from the first shell (1), of the plurality of second springs (15) are fixedly connected with the first connecting block (16) and the second connecting block (17) respectively, the ammeter (18) is fixedly connected to the lower end, close to the first connecting block (16), of the first shell (1), the inlet end of the ammeter (18) is electrically connected with the first connecting block (16) through a wire, the outlet end of the ammeter (18) is connected with the adjusting device (11), the lower end, close to the second connecting block (17), of the first shell (1) is fixedly connected with a voltmeter (19), the inlet end of the voltmeter (19) is connected with the adjusting device (11) through a wire, and the outlet end of the voltmeter (19) is electrically connected with the second connecting block (17);
the adjusting device (11) comprises a fixed block (20), a moving block (21), a second sliding groove (22), a threaded rod (23), a motor (24), a first connecting bulge (25), a resistance wire (26) and a second connecting bulge (27), the fixed block (20) is symmetrically and fixedly connected to the middle of the inner wall of the first shell (1), the moving block (21) is slidably connected to the middle of the fixed block (20), the second sliding groove (22) is formed in the middle of the fixed block (20), the moving block (21) is slidably connected with the second sliding groove (22), the threaded rod (23) is rotatably connected to the middle of the second sliding groove (22) through a bearing, a threaded hole is formed in the middle of the moving block (21), the moving block (21) is in threaded connection with the threaded rod (23) through the threaded hole, the motor (24) is fixedly connected to the top, close to the fixed block (20), of the first shell (1), the output end of the motor (24) penetrates through the fixed blocks (20) to be fixedly connected with the threaded rod (23), the second sliding groove (22) is symmetrically and fixedly connected with first connecting bulges (25), a resistance wire (26) is fixedly connected between the two fixed blocks (20) at equal intervals, the resistance wire (26) is electrically connected with the first connecting bulges (25), one side, close to the resistance wire (26), of the moving block (21) is fixedly connected with a second connecting bulge (27), and the second connecting bulge (27) is electrically connected with the first connecting bulge (25);
the inner wall fixedly connected with PLC controller (28) of first shell (1), and motor (24), ampere meter (18) and voltmeter (19) all with PLC controller (28) electric connection.
2. A current measuring device in an electric network according to claim 1, characterized in that: the motor (24) is a speed reducing motor (24).
3. A current measuring device in an electric network according to claim 1, characterized in that: an inclined plane is formed at one end, far away from the first spring (8), of the first sliding block (7).
4. A current measuring device in an electric network according to claim 1, characterized in that: logical groove (29) have been seted up to one side of first shell (1), one side fixedly connected with rubber seal block (30) of second shell (2), and rubber seal block (30) and logical groove (29) joint.
5. A current measuring method in a power grid, which is a current measuring device in a power grid to which the method of claim 1 is applied, characterized in that: the measurement method comprises the following steps:
1) people bring the device to a power grid wire (14), open the first shell (1) and the second shell (2), and fix the wire (14) after passing through the first semicircular groove (12) and the second semicircular groove (13);
2) the first shell (1) and the second shell (2) are attached by rotating the first shell (1) and the second shell (2), the inclined plane of the first sliding block (7) is extruded through the clamping block (4), the first sliding block (7) is driven to slide in the first sliding groove (6), after the clamping block (4) reaches the final position, the first sliding block (7) slides into the limiting groove (5) through the pushing of the first spring (8), the device is fixed, and meanwhile the second spring (15) pushes the first connecting block (16) and the second connecting block (17) to attach the electric wire (14);
3) when the current of an electric wire (14) in a power grid is measured, a motor (24) rotates to drive a threaded rod (23) to rotate, a moving block (21) is driven to slide in a second sliding groove (22), different resistance wires (26) are selected according to voltage data in the electric wire (14) at the moment, a first connecting bulge (25) is driven to move to a second connecting bulge (27), a channel is formed in a measuring device (10), the voltage in the measuring device (10) is half of the voltage in the electric wire (14), meanwhile, a PLC (28) records the data of an ammeter (18) and a voltmeter (19), and the current I real =2U real/R real in the electric wire (14) is calculated through a current formula I = U/R;
4) the PLC (28) transmits the measured current data to a monitoring room;
5) when the voltage is introduced into the electric wire (14) to change, the resistance wire (26) matched with the voltage to use is changed through the operation of the motor (24);
6) when the device is not used, the motor (24) drives the moving block (21) to move to the position without the resistance wire (26) so as to break the circuit of the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110427022.6A CN113433370B (en) | 2021-04-20 | 2021-04-20 | Current measuring method and device in power grid |
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|---|---|---|---|
| CN202110427022.6A CN113433370B (en) | 2021-04-20 | 2021-04-20 | Current measuring method and device in power grid |
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| CN113433370A CN113433370A (en) | 2021-09-24 |
| CN113433370B true CN113433370B (en) | 2022-09-06 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010055990A1 (en) * | 2008-11-14 | 2010-05-20 | Kim Kookjin | Electric power control device |
| CN110441581A (en) * | 2019-07-16 | 2019-11-12 | 上海北堃电力科技有限公司 | A kind of power grid bus current measuring device |
| CN209766826U (en) * | 2019-06-18 | 2019-12-10 | 姜存喜 | Auxiliary device for crimping of ground wire of power transmission line |
| CN209911488U (en) * | 2019-04-26 | 2020-01-07 | 四川恒创天地自动化设备有限公司 | High tension transmission line real-time detection device |
| CN211958059U (en) * | 2020-05-23 | 2020-11-17 | 新乡职业技术学院 | Current wiring terminal for electricity experiments |
| CN212543324U (en) * | 2020-07-06 | 2021-02-12 | 田娟 | Power transmission and transformation circuit electric wire fixing device |
| CN212622782U (en) * | 2020-07-23 | 2021-02-26 | 王海荣 | Transmission line voltage detection device |
-
2021
- 2021-04-20 CN CN202110427022.6A patent/CN113433370B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010055990A1 (en) * | 2008-11-14 | 2010-05-20 | Kim Kookjin | Electric power control device |
| CN209911488U (en) * | 2019-04-26 | 2020-01-07 | 四川恒创天地自动化设备有限公司 | High tension transmission line real-time detection device |
| CN209766826U (en) * | 2019-06-18 | 2019-12-10 | 姜存喜 | Auxiliary device for crimping of ground wire of power transmission line |
| CN110441581A (en) * | 2019-07-16 | 2019-11-12 | 上海北堃电力科技有限公司 | A kind of power grid bus current measuring device |
| CN211958059U (en) * | 2020-05-23 | 2020-11-17 | 新乡职业技术学院 | Current wiring terminal for electricity experiments |
| CN212543324U (en) * | 2020-07-06 | 2021-02-12 | 田娟 | Power transmission and transformation circuit electric wire fixing device |
| CN212622782U (en) * | 2020-07-23 | 2021-02-26 | 王海荣 | Transmission line voltage detection device |
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| CN113433370A (en) | 2021-09-24 |
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