CN212114893U - High-voltage leakage current measurement and control device - Google Patents

High-voltage leakage current measurement and control device Download PDF

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Publication number
CN212114893U
CN212114893U CN202020718311.2U CN202020718311U CN212114893U CN 212114893 U CN212114893 U CN 212114893U CN 202020718311 U CN202020718311 U CN 202020718311U CN 212114893 U CN212114893 U CN 212114893U
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fixedly connected
control unit
main control
shell
cover plate
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谢秀峰
甘海滨
刘杰
袁瑞
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Wuhan Ruijiu Electric Power Technology Co ltd
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Wuhan Ruijiu Electric Power Technology Co ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

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  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

The utility model relates to the technical field of high-voltage measurement and control devices, and discloses a high-voltage leakage current measurement and control device, which comprises a device shell, the center of the bottom of the device shell is fixedly connected with a current acquisition module, the center of the bottom of the device shell is fixedly connected with a main control unit, a precise current transformer is fixedly connected in the center of the device shell, an insulating shell is fixedly connected on the right side of the precise current transformer, the lower part of the main control unit is fixedly connected with a super capacitor, the inner part of the bottom of the device shell is fixedly connected with a mounting plate, the left lower part of the mounting plate is fixedly connected with a precise electric quantity management module, the left side of the center of the mounting plate is fixedly connected with a wireless communication module, the right side fixedly connected with charging electrode of mounting panel, the upper left side fixedly connected with metal casing of mounting panel. Through the cooperation of wireless communication module and metal casing, thereby reached the effect of observing and controling the integration.

Description

High-voltage leakage current measurement and control device
Technical Field
The utility model relates to a high pressure measurement and control device technical field specifically is a high-pressure leakage current measurement and control device.
Background
The insulating performance of the electric insulating tool directly influences the safety of electric power production, so that the national relevant departments have very strict regulations and requirements on quality standards, type tests and preventive tests performed regularly, for the tools such as insulating gloves and insulating boots, preventive test regulations require that water is injected into the insulating gloves and the insulating boots, the insulating gloves and the insulating boots are immersed into a vessel filled with fully-grounded water, the inner water surface and the outer water surface are flush, then high voltage is introduced into the water in the insulating gloves and the insulating boots, and the leakage current between the inner water and the outer water of the insulating gloves and the insulating boots is measured at the moment to serve as the inspection basis for qualification.
Because high-low voltage need keep apart during the experiment, common leakage ampere meter adopts storage battery lithium cell etc. to supply power more, charge when the battery feed again, the charge time is long, but if charge time is too short or often forget to charge easily and can lead to unable the use, and because the reason that the sample is unqualified or ageing, in case the experiment appears the sample and punctures when appearing, can produce very big impulse voltage, although high-voltage electrode automatic tripping breaks off high-voltage loop, instantaneous impulse voltage can produce very big impact to inside low voltage control module, lead to stability very poor or even damage, especially traditional leakage ampere meter most simultaneous measurement multichannel, a leakage ampere meter controls a plurality of high-voltage electrode automatic tripping device, in case take place, a certain way of sample is punctured, lead to other way high-voltage electrode automatic tripping, therefore the utility model particularly provides a can observe and control integration, The high-voltage leakage current measurement and control device with quick tripping and instant charging solves the problems.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides a high-voltage leakage current measurement and control device, which has the advantages of measurement and control integration, instantaneous charging, tripping sensitivity and the like, solves the problems that the high voltage and the low voltage need to be isolated during the test, a common leakage current meter mostly adopts a storage battery lithium battery and the like for power supply, the charging is carried out when the battery feeds power, the charging time is long, but the charging time is too short or the charging is easy to forget, the charging can not be used, and due to the reason that the test article is unqualified or aged, once the test article is punctured in the test, a large impulse voltage can be generated, although a high-voltage electrode automatically trips to disconnect a high-voltage loop, the instantaneous impulse voltage can generate large impact on an internal low-voltage control module, the stability is poor or even damaged, especially, most of the traditional leakage current, namely, one leakage ammeter controls a plurality of high-voltage electrode automatic tripping devices, once the leakage ammeter occurs, a certain path of test sample is punctured, and the problem of automatic tripping of other paths of high-voltage electrodes is caused.
(II) technical scheme
For realizing the above-mentioned integration of can observing and controling, instantaneous charging and the sensitive purpose of dropout, the utility model provides a following technical scheme: a high-voltage leakage current measurement and control device comprises a device shell, wherein a current acquisition module is fixedly connected to the bottom center of the device shell, a main control unit is fixedly connected to the bottom center of the device shell, a bottom cover plate is fixedly connected to the bottom of the device shell, a front decorative plate is fixedly connected to the center of the device shell, a precision current transformer is fixedly connected to the inner portion of the center of the device shell, an insulating shell is fixedly connected to the right side of the precision current transformer, a super capacitor is fixedly connected to the lower portion of the main control unit, a sucker is fixedly connected to the lower portion of the super capacitor, a chain is fixedly connected to the lower portion of the sucker, a main control unit mounting hole is formed in the upper portion of the center of the bottom cover plate, a current acquisition module mounting hole is formed in the lower portion of the center of the bottom cover plate, and, the inside fixedly connected with mounting panel of the bottom of device shell, the accurate electric quantity management module of left side below fixedly connected with of mounting panel, the center left side fixedly connected with wireless communication module of mounting panel, the right side fixedly connected with charging electrode of mounting panel, the upper left side fixedly connected with metal casing of mounting panel, the top fixedly connected with outage of mounting panel keeps the electro-magnet, spacing fixed orifices has all been seted up in the four corners of mounting panel.
The wireless communication module is in bidirectional electric connection with a main control unit, the main control unit is in bidirectional electric connection with a precise electric quantity management module, the main control unit is in bidirectional electric connection with a current acquisition module, the output end of the main control unit is in bidirectional electric connection with the input end of a power-off holding electromagnet, the precise electric quantity management module is in bidirectional electric connection with a super capacitor, the input end of the super capacitor is in electric connection with the output end of a charging electrode, the output end of the super capacitor is in electric connection with the input end of a metal shell, the output end of the metal shell is in electric connection with the input end of a precise current transformer, the output end of the precise current transformer is in electric connection with the input end of the current acquisition module, and the output end of the power-off holding electromagnet is in electric connection with the input end of a sucker, the output end of the sucker is electrically connected with the input end of the chain.
Preferably, the device shell is fixedly connected with the main control unit through a main control unit mounting hole in the bottom cover plate, so that the device shell is reliably and conveniently connected with the main control unit.
Preferably, the number of the charging electrodes is two, and the two charging electrodes are respectively positioned at the upper right side and the lower right side of the mounting plate, so that the charging electrodes can charge the super capacitor more quickly.
Preferably, the device shell is fixedly connected with the current acquisition module through a current acquisition module mounting hole in the bottom cover plate, so that the device shell is reliably and conveniently connected with the current acquisition module.
Preferably, the bottom center of the suction cup is fixedly connected with a chain connecting ring, and the suction cup is fixedly connected with the chain through the chain connecting ring, so that the connection between the suction cup and the chain is firmer, and the chain is more flexible when in use.
Preferably, the total four bottom cover plate fixed orificess just are located the left and right sides of bottom cover plate respectively, bottom cover plate is through bottom cover plate fixed orifices and device shell fixed connection, and this makes bottom cover plate and device shell be connected more reliably, prevents that the inside part of device shell from dropping out, avoids leading to the part to damage.
Preferably, current acquisition module, main control unit, super capacitor, accurate electric quantity management module, wireless communication module, charging electrode, accurate current transformer all are located metal casing's inside, the outage keeps the electro-magnet to be located insulating casing's inside, and this makes the outage keep the electro-magnet to pass through insulating casing and metal casing insulating, can only keep the electro-magnet to provide the power for the outage by accurate current transformer and main control unit, prevents the unable normal use of whole device.
(III) advantageous effects
Compared with the prior art, the utility model provides a high-voltage leakage current measurement and control device possesses following beneficial effect:
1. this high-voltage leakage current measurement and control device, cooperation through wireless communication module and metal casing is used, thereby the effect of observing and controlling the integration has been reached, when needs observe and control, high pressure is leading-in from measurement and control device's metal casing, through accurate current transformer, directly receive the shell that the outage kept the electro-magnet, the outage keeps the electro-magnet to utilize its magnetism to hold the sucking disc, the sucking disc is fixed with the chain, thereby make the shell form an independent high voltage channel to the chain terminal, current acquisition module passes through accurate current transformer and gathers high-voltage leakage current, then send main control unit, send main control unit and send wireless communication module with the relevant data transmission of high-voltage leakage current, finally transmit receiving terminal (cell-phone, host computer).
2. This high-voltage leakage current measurement and control device uses through the cooperation of main control unit and outage holding electromagnet to reached and let sucking disc and chain dropout sensitive effect, when current acquisition module gathered high-voltage leakage current through accurate current transformer and exceeded the setting value, main control unit kept the electromagnet power supply for the outage, and the outage keeps the electromagnet to lose magnetism this moment, and sucking disc and chain automatic tripping break off high-voltage circuit.
3. This high-voltage leakage current measurement and control device uses through the cooperation of charging electrode and metal casing to reached and to have given the instantaneous effect of charging of main control unit and super capacitor, when needs are observed and controlled, high pressure is leading-in from measurement and control device's metal casing, and measurement and control device's metal casing communicates with each other with the negative pole that charges, and charging electrode communicates with each other with anodal and can charge for super capacitor during the charging, then supplies power for main control unit after the accurate programme-controlled steady voltage of accurate electric quantity management module.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a side view of the overall structure of the present invention;
FIG. 3 is a schematic view of the structure of the housing of the device of the present invention;
FIG. 4 is a schematic view of the internal structure of the housing of the device of the present invention;
FIG. 5 is a schematic view of the bottom structure of the housing of the device of the present invention;
FIG. 6 is a schematic view of the internal structure of the bottom of the housing of the device of the present invention;
fig. 7 is a system framework diagram of the present invention.
In the figure: 1-device shell, 2-current acquisition module, 3-main control unit, 4-super capacitor, 5-precision electric quantity management module, 6-wireless communication module, 7-charging electrode, 8-metal shell, 9-power-off holding electromagnet, 10-insulating shell, 11-sucker, 12-chain, 13-front decorative plate, 14-bottom cover plate, 15-main control unit mounting hole, 16-current acquisition module mounting hole, 17-bottom cover plate fixing hole, 18-limit fixing hole, 19-mounting plate and 20-precision current transformer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-7, a high-voltage leakage current measurement and control device comprises a device housing 1, the device housing 1 is fixedly connected with a main control unit 3 through a main control unit mounting hole 15 on a bottom cover plate 14, which enables the device housing 1 to be reliably and conveniently detached from the main control unit 3, the device housing 1 is fixedly connected with a current collection module 2 through a current collection module mounting hole 16 on the bottom cover plate 14, which enables the device housing 1 to be reliably and conveniently detached from the current collection module 2, the current collection module 2 is fixedly connected with the bottom center of the device housing 1, the main control unit 3 is fixedly connected with the bottom center of the device housing 1, the bottom cover plate 14 is fixedly connected with the bottom of the device housing 1, a front decoration plate 13 is fixedly connected with the center of the device housing 1, and a precise current transformer 20 is fixedly connected with the inside of the center of the device housing, an insulating shell 10 is fixedly connected on the right side of a precision current transformer 20, a super capacitor 4 is fixedly connected below a main control unit 3, a sucker 11 is fixedly connected below the super capacitor 4, a chain connecting ring is fixedly connected at the center of the bottom of the sucker 11, the sucker 11 is fixedly connected with a chain 12 through the chain connecting ring, so that the connection between the sucker and the chain is firmer, the chain 12 is more flexible when in use, the chain 12 is fixedly connected below the sucker 11, a main control unit mounting hole 15 is arranged above the center of a bottom cover plate 14, a current collection module mounting hole 16 is arranged below the center of the bottom cover plate 14, bottom cover plate fixing holes 17 are respectively arranged on the left side and the right side of the bottom cover plate 14, the bottom cover plate 14 is fixedly connected with a device shell 1 through the bottom cover plate fixing holes 17, this makes bottom cover plate 14 be connected more reliably with device shell 1, prevent that the inside part of device shell 1 from dropping out, avoid resulting in the part to damage, the inside fixedly connected with mounting panel 19 of the bottom of device shell 1, the accurate electric quantity management module 5 of left side below fixedly connected with of mounting panel 19, the center left side fixedly connected with wireless communication module 6 of mounting panel 19, the right side fixedly connected with charging electrode 7 of mounting panel 19, charging electrode 7 is total two, be located mounting panel 19's upper right side and lower right side respectively, this makes charging electrode 7 charge the speed for super capacitor 4 faster, the upper left side fixedly connected with metal casing 8 of mounting panel 19, the top fixedly connected with outage of mounting panel 19 keeps electro-magnet 9, spacing fixed orifices 18 has all been seted up in the four corners of mounting panel 19.
The wireless communication module 6 is in bidirectional electric connection with the main control unit 3, the main control unit 3 is in bidirectional electric connection with the precise electric quantity management module 5, the main control unit 3 is in bidirectional electric connection with the current acquisition module 2, the output end of the main control unit 3 is in bidirectional electric connection with the input end of the power-off holding electromagnet 9, the precise electric quantity management module 5 is in bidirectional electric connection with the super capacitor 4, the input end of the super capacitor 4 is in electric connection with the output end of the charging electrode 7, the output end of the super capacitor 4 is in electric connection with the input end of the metal shell 8, the output end of the metal shell 8 is in electric connection with the input end of the precise current transformer 20, the output end of the precise current transformer 20 is in electric connection with the input end of the power-off holding electromagnet 9, the output end of the precise current transformer 20 is in electric connection with, the output of sucking disc 11 is connected with the input electricity of chain 12, current acquisition module 2, main control unit 3, super capacitor 4, accurate electric quantity management module 5, wireless communication module 6, charging electrode 7, accurate current transformer 20 all is located metal casing 8's inside, outage holding electromagnet 9 is located insulating casing 10's inside, this makes outage holding electromagnet 9 pass through insulating casing 10 and metal casing 8 insulating, can only keep electromagnet 9 to provide the power for the outage by accurate current transformer 20 and main control unit 3, prevent the unable normal use of whole device.
The working principle is that when measurement and control are needed, high voltage is led in from a metal shell 8 of the measurement and control device, and is directly connected to a shell of a power-off maintaining electromagnet 9 through a precise current transformer 20, the power-off maintaining electromagnet 9 attracts a sucker 11 by utilizing the magnetism of the power-off maintaining electromagnet, the sucker 11 is fixed with a chain 12, so that an independent high-voltage channel is formed from the shell to a chain terminal, a current acquisition module 2 acquires high-voltage leakage current through the precise current transformer 20, then transmits the high-voltage leakage current to a main control unit 3, transmits the high-voltage leakage current related data to the main control unit 3 to a wireless communication module 6 and finally transmits the data to a receiving terminal (a mobile phone and a host), meanwhile, the metal shell 8 of the measurement and control device is communicated with a charged cathode, a charging electrode 7 is communicated with an anode during charging, namely the super capacitor 4 can be charged, then the, when the current acquisition module 2 acquires that the high-voltage leakage current exceeds a set value through the precision current transformer 20, the main control unit 3 supplies power to the power-off keeping electromagnet 9, the power-off keeping electromagnet 9 loses magnetism at the moment, the sucking disc 11 and the chain 12 are automatically tripped, and a high-voltage loop is disconnected.
In conclusion, the high-voltage leakage current measurement and control device achieves the measurement and control integrated effect by the cooperation of the wireless communication module 6 and the metal shell 8, when measurement and control are needed, high voltage is led in from the metal shell 8 of the measurement and control device, and is directly connected to the shell of the power-off keeping electromagnet 9 through the precision current transformer 20, the power-off keeping electromagnet 9 utilizes the magnetism of the power-off keeping electromagnet to suck the sucker 11, the sucker 11 is fixed with the chain 12, so that an independent high-voltage channel is formed from the shell to a chain terminal, the current acquisition module 2 acquires high-voltage leakage current through the precision current transformer 20, then transmits the high-voltage leakage current to the main control unit 3, transmits related data of the high-voltage leakage current to the wireless communication module 6 by the main control unit 3, and finally transmits the data to. Use through main control unit 3 and outage holding electromagnet 9's cooperation to reached and let sucking disc 11 and chain 12 trip sensitive effect, when current acquisition module 2 gathered high-pressure leakage current through accurate current transformer 20 and exceeded the setting value, main control unit 3 kept electromagnet 9 power supplies for the outage, and outage holding electromagnet 9 can lose magnetism this moment, and sucking disc 11 and chain 12 automatic tripping break off high-voltage circuit. Use through the cooperation of charging electrode 7 and metal casing 8 to reach the effect that can give main control unit 3 and super capacitor 4 instantaneous charging, when needs observe and control, high pressure is leading-in from measurement and control device's metal casing 8, and measurement and control device's metal casing 8 communicates with each other with the negative pole that charges, and charging electrode 7 communicates with each other with anodal and can charge for super capacitor 4 during charging, then supplies power for main control unit 3 behind the accurate programme-controlled steady voltage of accurate electric quantity management module 5.
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 (7)

1. The utility model provides a high-pressure leakage current measurement and control device, includes device shell (1), its characterized in that: the device comprises a device shell (1), a current acquisition module (2) is fixedly connected to the center of the bottom of the device shell (1), a main control unit (3) is fixedly connected to the center of the bottom of the device shell (1), a bottom cover plate (14) is fixedly connected to the bottom of the device shell (1), a front decorative plate (13) is fixedly connected to the center of the device shell (1), a precise current transformer (20) is fixedly connected to the inner portion of the center of the device shell (1), an insulating shell (10) is fixedly connected to the right side of the precise current transformer (20), a super capacitor (4) is fixedly connected to the lower portion of the main control unit (3), a sucker (11) is fixedly connected to the lower portion of the super capacitor (4), a chain (12) is fixedly connected to the lower portion of the sucker (11), and a main control unit mounting hole (15) is formed, a current collection module mounting hole (16) is formed in the lower portion of the center of the bottom cover plate (14), bottom cover plate fixing holes (17) are formed in the left side and the right side of the bottom cover plate (14), a mounting plate (19) is fixedly connected to the inside of the bottom of the device shell (1), a precise electric quantity management module (5) is fixedly connected to the lower left of the mounting plate (19), a wireless communication module (6) is fixedly connected to the left side of the center of the mounting plate (19), a charging electrode (7) is fixedly connected to the right side of the mounting plate (19), a metal shell (8) is fixedly connected to the upper left of the mounting plate (19), a power-off maintaining electromagnet (9) is fixedly connected to the upper portion of the mounting plate (19), and limiting fixing holes (18) are formed in four corners of;
the wireless communication module (6) is in bidirectional electric connection with a main control unit (3), the main control unit (3) is in bidirectional electric connection with a precise electric quantity management module (5), the main control unit (3) is in bidirectional electric connection with a current acquisition module (2), the output end of the main control unit (3) is in electric connection with the input end of a power-off holding electromagnet (9), the precise electric quantity management module (5) is in bidirectional electric connection with a super capacitor (4), the input end of the super capacitor (4) is in electric connection with the output end of a charging electrode (7), the output end of the super capacitor (4) is in electric connection with the input end of a metal shell (8), the output end of the metal shell (8) is in electric connection with the input end of a precise current transformer (20), the output end of the precise current transformer (20) is in electric connection with the input end of the power-off holding electromagnet (9), the output end of the precision current transformer (20) is electrically connected with the input end of the current acquisition module (2), the output end of the power-off holding electromagnet (9) is electrically connected with the input end of the sucker (11), and the output end of the sucker (11) is electrically connected with the input end of the chain (12).
2. The high-voltage leakage current measurement and control device according to claim 1, characterized in that: the device shell (1) is fixedly connected with the main control unit (3) through a main control unit mounting hole (15) on the bottom cover plate (14).
3. The high-voltage leakage current measurement and control device according to claim 1, characterized in that: the number of the charging electrodes (7) is two, and the two charging electrodes are respectively positioned at the upper right side and the lower right side of the mounting plate (19).
4. The high-voltage leakage current measurement and control device according to claim 1, characterized in that: the device shell (1) is fixedly connected with the current acquisition module (2) through a current acquisition module mounting hole (16) on the bottom cover plate (14).
5. The high-voltage leakage current measurement and control device according to claim 1, characterized in that: the chain connecting ring is fixedly connected to the center of the bottom of the sucker (11), and the sucker (11) is fixedly connected with the chain (12) through the chain connecting ring.
6. The high-voltage leakage current measurement and control device according to claim 1, characterized in that: the bottom cover plate fixing holes (17) are four in number and are respectively located on the left side and the right side of the bottom cover plate (14), and the bottom cover plate (14) is fixedly connected with the device shell (1) through the bottom cover plate fixing holes (17).
7. The high-voltage leakage current measurement and control device according to claim 1, characterized in that: the current collection module (2), the main control unit (3), the super capacitor (4), the precise electric quantity management module (5), the wireless communication module (6), the charging electrode (7) and the precise current transformer (20) are all located inside the metal shell (8), and the electromagnet (9) is located inside the insulating shell (10) when the power is off.
CN202020718311.2U 2020-05-06 2020-05-06 High-voltage leakage current measurement and control device Active CN212114893U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020718311.2U CN212114893U (en) 2020-05-06 2020-05-06 High-voltage leakage current measurement and control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020718311.2U CN212114893U (en) 2020-05-06 2020-05-06 High-voltage leakage current measurement and control device

Publications (1)

Publication Number Publication Date
CN212114893U true CN212114893U (en) 2020-12-08

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ID=73618147

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020718311.2U Active CN212114893U (en) 2020-05-06 2020-05-06 High-voltage leakage current measurement and control device

Country Status (1)

Country Link
CN (1) CN212114893U (en)

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