CN207976549U - A kind of suspension type power-supply controller of electric for high-voltage switch gear detection device - Google Patents

A kind of suspension type power-supply controller of electric for high-voltage switch gear detection device Download PDF

Info

Publication number
CN207976549U
CN207976549U CN201820547447.4U CN201820547447U CN207976549U CN 207976549 U CN207976549 U CN 207976549U CN 201820547447 U CN201820547447 U CN 201820547447U CN 207976549 U CN207976549 U CN 207976549U
Authority
CN
China
Prior art keywords
controller
suspension type
socket
type power
supply controller
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.)
Active
Application number
CN201820547447.4U
Other languages
Chinese (zh)
Inventor
华成军
田佳
朱琦
池建飞
胡建建
童苇
张钰
潘登
王嘉斌
韩至诚
钮月峰
童永强
石广森
郭新安
王加易
罗岚
唐天培
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Jiande Power Supply Co Ltd
State Grid Corp of China SGCC
Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
Zhejiang Jiande Power Supply Co Ltd
State Grid Corp of China SGCC
Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Jiande Power Supply Co Ltd, State Grid Corp of China SGCC, Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd filed Critical Zhejiang Jiande Power Supply Co Ltd
Priority to CN201820547447.4U priority Critical patent/CN207976549U/en
Application granted granted Critical
Publication of CN207976549U publication Critical patent/CN207976549U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model provides a kind of suspension type power-supply controller of electric for high-voltage switch gear detection device,Belong to power-supply controller of electric technical field,High-voltage switch gear is set in high-tension switch cabinet,Suspension type power-supply controller of electric includes insulation board,Connector on insulation board and mounting base,The lower part of mounting base is equipped with the first socket and the second socket,It is electrically connected with power switch and earth leakage protective device between first socket and the second socket,Mounting base is equipped with ground protection module,Ground protection module includes detection circuit,The controller and display screen being electrically connected with detection circuit,Detection circuit includes the ground resistance measuring circuit of grounded inspection circuit and ground resistance,Pre-set current value and predetermined resistance value are equipped in controller,When the earth current that grounded inspection circuit measures is more than predetermined resistance value more than the ground resistance that pre-set current value or ground resistance measuring circuit measure,Judge detection device imperfect earth,Controller controls earth leakage protective device and disconnects,Detection device is stopped.

Description

A kind of suspension type power-supply controller of electric for high-voltage switch gear detection device
Technical field
The utility model is related to power-supply controller of electric technical field more particularly to a kind of hanging for high-voltage switch gear detection device Hanging power controller.
Background technology
Electric system needs periodically overhaul the high-voltage switch gear in high-tension switch cabinet, if detection device and power ground It is bad, test result can be caused inaccurate, or even cause a hidden trouble to the personal safety of service personnel.At present to being examined in site examining and repairing Whether whether measurement equipment is grounded or is grounded does not control effectively well, and it is preceding right typically to be used in detection device by manually Whether detection device, which is grounded, is verified, and can not recognize the specific Grounding of detection device in use.
Utility model content
The purpose of this utility model is to provide a kind of suspension type power-supply controller of electric for high-voltage switch gear detection device, real When monitor and detection equipment Grounding.
In order to achieve the above object, the utility model adopts the following technical solution:One kind being used for high-voltage switch gear detection device Suspension type power-supply controller of electric, high-voltage switch gear is set in high-tension switch cabinet, and suspension type power-supply controller of electric includes insulation board, it is exhausted to be set to Listrium upper end and the connector being connect with high-tension switch cabinet and the mounting base set on insulation board center, the lower part of mounting base be equipped with First socket of external power supply electrical connection and the second socket being electrically connected with detection device, it is electric between the first socket and the second socket It is connected with power switch and earth leakage protective device, ground protection module is additionally provided in mounting base, ground protection module includes and detection Detection circuit, the controller being electrically connected with detection circuit and the display screen being electrically connected with the controller of equipment electrical connection, detection electricity Road includes the grounded inspection circuit for measuring and inspecting apparatus earth current and the ground connection for measuring and inspecting apparatus ground resistance Resistance measuring circuit, controller is interior to be equipped with pre-set current value and predetermined resistance value, when the earth current that grounded inspection circuit measures When being more than predetermined resistance value more than the ground resistance that pre-set current value or ground resistance measuring circuit measure, controller control electric leakage Protector disconnects.
Further, the connector is hook, alternatively, the connector is magnet.
Further, first socket and the second socket include waterproof jack, and waterproof jack is equipped with rubber ring, rubber The inside of cushion rubber is located in waterproof jack, the upper end of the upper end of rubber ring above waterproof jack.
Further, the inside of the rubber ring is equipped with V-shaped groove, and the opening of V-shaped groove is towards the outside of waterproof jack.
Further, it is equipped with equipment access port at the lower part of the mounting base and close second socket, detection device passes through Equipment access port is electrically connected with detection circuit.
Further, it is additionally provided with alarm in the mounting base, alarm is electrically connected with the controller, and works as grounded inspection circuit When the earth current measured is more than predetermined resistance value more than the ground resistance that pre-set current value or ground resistance measuring circuit measure, Alarm sends out alarm.
Further, the button being connect with controller is additionally provided in the mounting base, controller adjusts default by button Current value and predetermined resistance value.
Further, the mounting base is equipped with the debugging interface whether worked normally for testing ground protection module.
Further, power transformer is additionally provided in the mounting base, controller passes through power transformer and the first socket Electrical connection.
Further, the outside of the mounting base is equipped with transparent casing, and the lower end of transparent casing is equipped with to be passed through for connecting line Connector.
After adopting the above technical scheme, the utility model has the following advantages that:
1, by the way that connector is arranged in the upper end of insulation board so that power-supply controller of electric can be suspended on high-tension switch cabinet, Service personnel is operated when using power-supply controller of electric without squatting down, more convenient to use, at the same be also convenient for service personnel with When observation power-supply controller of electric on display screen, understand the Grounding of detection device, increase the convenience that device uses;By setting The first socket and the second socket are set, the first socket is communicated with external power supply, and when power switch is opened, electric current passes through earth leakage protective device It is output to the second socket, the second socket is electrically connected with detection device and is detection device power supply;It is connect by being arranged in mounting base Ground protection module, the earth current and ground resistance of ground protection mould detection circuit measuring and inspecting apparatus in the block, and by result It is sent to controller, controller sends result to display screen and shown by display screen so that service personnel can understand in real time To the Grounding of detection device;Meanwhile controller by earth current and ground resistance respectively with pre-set current value and default electric Resistance value is compared, if one of numerical value is more than preset value, judges that detection device imperfect earth, controller control electric leakage are protected It protects device to disconnect so that there is no electric current on the second socket, detection device is not charged, ensures the safety that detection device uses, simultaneously Also ensure the safety of service personnel.
2, connector is hook, can hang in the cabinet door of high-tension switch cabinet suspension type power-supply controller of electric, facilitate progress Operation and observation;Or connector is magnet, the cabinet door of general high voltage switchgear is iron gate, by magnet that suspension type is electric Source controller is fixed in cabinet door, and the height of suspension type power-supply controller of electric can be selected according to the service condition of service personnel, is made Obtain the more convenient to use of suspension type power-supply controller of electric.
3, by being provided with rubber ring on waterproof jack, the inside of rubber ring is located in waterproof jack so that rubber ring Inside and the inserted sheet of plug mutually squeeze, while the upper end of rubber ring is above the upper end of waterproof jack so that plug, which is equipped with, to be inserted The end of piece is mutually squeezed with rubber ring, and external rainwater is avoided to enter in waterproof jack so that the use of internal circuit is safer.
4, by be arranged V-shaped groove, just in case rainwater enter rubber ring inside can along the side wall of V-shaped groove, into V-shaped groove, Inside without entering waterproof jack, is further ensured that the safety that suspension type power-supply controller of electric uses.
5, by setting equipment access port, facilitate connecting detection equipment and the Grounding of detection device be detected, By the way that equipment access port to be positioned close at the second socket, because the second socket is also connect with detection device so that the position of wiring It sets relatively close to operation is more convenient so that the connection between suspension type power-supply controller of electric and detection device is more convenient.
6, by the way that alarm is arranged, when detection circuit detects detection device imperfect earth, alarm is rung, and reminds maintenance Personnel's detection device imperfect earth avoids service personnel from being detected simultaneously to more high-voltage switch gears with more detection devices When, not it will be noted that the case where every detection device so that the use of suspension type power-supply controller of electric is more convenient.
7, by the way that button is arranged so that pre-set current value and predetermined resistance value in controller can be adjusted, and be adapted to Detection device under different service conditions increases the use scope of suspension type power-supply controller of electric.
8, whether can to suspension type power-supply controller of electric before being powered to detection device by the way that debugging interface is arranged Accurate judgement ground connection is abnormal to be tested, and the reliability that suspension type power-supply controller of electric uses is promoted.
9, by the way that power transformer is arranged, the electric main of input is converted into the DC voltage of controller needs, makes control Device processed can be used normally.
10, by the way that transparent casing is arranged, play the role of dustproof and waterproof, while can avoid suspension type power-supply controller of electric and removing Component during fortune in mounting base is impaired because colliding;By the way that connector is arranged in the lower end of transparent casing, connector is close to the One socket and the second socket, connecting line are connected with the first socket, the second socket respectively by connector so that in suspension type power supply Controller in use, takes down without by transparent casing, can penetrate transparent casing and observe display screen so that suspension type Power-supply controller of electric it is more convenient to use.
Description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings:
Fig. 1 is the structural schematic diagram of suspension type power-supply controller of electric described in the utility model embodiment one.
Fig. 2 is the cooperation schematic diagram of suspension type power-supply controller of electric and high-tension switch cabinet described in the utility model embodiment one.
Fig. 3 is the front view of suspension type power-supply controller of electric described in the utility model embodiment one.
Fig. 4 is the structure diagram of suspension type power-supply controller of electric described in the utility model embodiment one.
Fig. 5 is the front view of suspension type power-supply controller of electric described in the utility model embodiment two.
Fig. 6 is the structure diagram of suspension type power-supply controller of electric described in the utility model embodiment two.
Fig. 7 is the structural schematic diagram of the first socket in suspension type power-supply controller of electric described in the utility model embodiment three.
Fig. 8 is the sectional view of A-A in Fig. 7.
Marked the names of the parts are as follows in figure:
1, insulation board;2, it links up with;3, mounting base;31, the first socket;311, waterproof jack;312, rubber ring;313, V-arrangement Slot;32, the second socket;33, power switch;34, earth leakage protective device;35, power transformer;36, controller;37, earthing detection Circuit;38, ground resistance measuring circuit;39, display screen;40, button;41, debugging interface;42, equipment access port;43, it alarms Device;44, transparent casing;441, connector;5, high-tension switch cabinet.
Specific implementation mode
Embodiment one:
As shown in Figures 1 to 4, the utility model provides a kind of suspension type power supply control for high-voltage switch gear detection device Device, high-voltage switch gear are set in high-tension switch cabinet 5, and suspension type power-supply controller of electric includes insulation board 1, connector and mounting base 3, connection Part is mounted on the upper end of insulation board 1, and connector is connect with high-tension switch cabinet 5 so that power-supply controller of electric can be suspended on height and press off It closes on cabinet 5, service personnel is operated when using suspension type power-supply controller of electric without squatting down, more convenient to use, mounting base 3 It is arranged in the center of insulation board 1, the lower part of mounting base 3 is equipped with the first socket 31 and and detection device that are electrically connected with external power supply Second socket 32 of electrical connection, power switch 33 and earth leakage protective device are electrically connected between the first socket 31 and the second socket 32 34, be additionally provided with ground protection module in mounting base 3, ground protection module include the detection circuit being electrically connected with detection device, with The controller 36 of detection circuit electrical connection and the display screen 39 being electrically connected with controller 36, it is convenient to overhaul by the way that display screen is arranged Personnel observe the Grounding of detection device at any time, while because power-supply controller of electric by connector is suspended on detection device or height It compresses switch on cabinet, service personnel can easily see the content of display screen display, and increasing suspension type power-supply controller of electric makes Convenience, detection circuit include for the grounded inspection circuit 37 of measuring and inspecting apparatus earth current and for measuring detection The ground resistance measuring circuit 38 of equipment ground resistance, controller 36 is interior to be equipped with pre-set current value and predetermined resistance value, works as ground connection The earth current that detection circuit 37 measures is more than more than the ground resistance that pre-set current value or ground resistance measuring circuit 38 measure When predetermined resistance value, then judge that detection device imperfect earth, controller 36 control earth leakage protective device 34 and disconnects so that the second socket There is no electric current on 32, detection device is not charged, ensures the safety that detection device uses, while also ensureing the peace of service personnel Entirely.
In use, first external power supply is connected on the first socket 31, the power cord of detection device is connected to the second socket On 32, the ground terminal and auxiliary earth terminal of detection device are connected in detection circuit, then turn on the power switch 33, are connect at this time Ground protection module is started to work, and when the earth current that grounded inspection circuit 37 measures is more than pre-set current value, judges that detection is set Standby imperfect earth, controller 36 control earth leakage protective device 34 and disconnect, and no power on the second socket 32, detection device is stopped; When the ground resistance that ground resistance measuring circuit 38 measures is more than predetermined resistance value, judge between detection device and external power supply Ground resistance it is excessive, controller 36 controls earth leakage protective device 34 and disconnects, and no power on the second socket 32, detection device stops work Make;It is measured when the earth current that grounded inspection circuit 37 measures is less than or equal to pre-set current value and ground resistance measuring circuit 38 Ground resistance when being less than or equal to predetermined resistance value, the electric current on external power supply passes sequentially through power switch 33 and earth leakage protective device 34 are output to the second socket 32, and the second socket is powered for detection device, detection device normal work.
In the present embodiment, connector is hook 2, and suspension type power-supply controller of electric is hung over to the cabinet of high-tension switch cabinet by linking up with Men Shang facilitates and is operated and observed.
It is equipped with equipment access port 42 at the lower part of mounting base 3 and close second socket 32, detection device is accessed by equipment Mouthfuls 42 be electrically connecteds with detection circuit, there are two equipment access port is arranged and respectively with the ground terminal of detection device and auxiliary earth Terminal connects.Grounded inspection circuit measures electricity by connecting the earth current of measuring and inspecting apparatus, ground resistance with ground terminal Road measures the pressure drop that earth-return circuit generates, is calculated further according to Ohm's law by being connect with ground terminal and auxiliary earth terminal Obtain the ground resistance of earth-return circuit.By the way that equipment access port is positioned close at the second socket, because the second socket also with inspection Measurement equipment connects so that wiring is located closer to, and operation is more convenient so that suspension type power-supply controller of electric and detection device Between connection it is more convenient.
Alarm 43 is additionally provided in mounting base 3, alarm 43 is electrically connected with controller 36, when grounded inspection circuit 37 measures Earth current when being more than the ground resistance that pre-set current value or ground resistance measuring circuit 38 measure and being more than predetermined resistance value, sentence Disconnected detection device imperfect earth, alarm 43 send out alarm, remind service personnel's detection device imperfect earth, avoid maintenance people Member is simultaneously when being detected more high-voltage switch gears with more detection devices, not it will be noted that the case where every detection device, makes The use for obtaining suspension type power-supply controller of electric is more convenient.
The button 40 being connect with controller 36 is additionally provided in mounting base 3, controller 36 adjusts predetermined current by button 40 Value and predetermined resistance value adapt to the detection device under different service conditions, increase the use scope of suspension type power-supply controller of electric.
Power transformer 35 is additionally provided in mounting base 3, controller 36 is electrically connected by power transformer 35 and the first socket 31 It connects, the electric main of input is converted into the DC voltage of controller needs, controller is made to can be used normally.
The outside of mounting base 3 is equipped with transparent casing 44, plays the role of dustproof and waterproof, while can avoid suspension type power supply control The component in mounting base is impaired because colliding in the handling process for device processed, the transparent display screen facilitated in observation mounting base of case;Thoroughly Bright case 44 and insulation board 1 are rotatablely connected, the lower end of transparent casing 44 be equipped with for connecting line by connector 441, connector 441 are connected respectively with the first socket, the second socket by connector, are made close to the first socket 31 and the second socket 32, connecting line Suspension type power-supply controller of electric in use, taken down without by transparent casing so that suspension type power-supply controller of electric It is more convenient to use.
Specifically, controller 36 selects ATMEGA16A microcontrollers, the microcontroller speed of service is fast, low in energy consumption.
It should be understood that connector may be magnet.
Embodiment two:
As shown in Figure 5 and Figure 6, the present embodiment and the main distinction of embodiment one are, mounting base 3 is equipped with for testing The debugging interface 41 whether ground protection module works normally.The advantages of this arrangement are as follows can detection device power supply before, By the way that debugging interface to be grounded and disconnect, check whether earth leakage protective device disconnects, if earth leakage protective device disconnects alarm hair simultaneously Go out alarm, then suspension type power-supply controller of electric can correctly judge whether ground connection is abnormal, promote what suspension type power-supply controller of electric used Reliability.
Embodiment three:
As shown in Figure 7 and Figure 8, the present embodiment and the main distinction of embodiment one, embodiment two are, 31 He of the first socket Second socket 32 includes waterproof jack 311, and waterproof jack 311 is equipped with rubber ring 312, and the inside of rubber ring 312, which is located at, prevents In water cutting hole 311, the upper end of the upper end of rubber ring 312 above waterproof jack 311.The advantages of this arrangement are as follows part is high Setting compress switch outdoors, just in case rainwater is entered by socket inside mounting base in detection process, is easy influencing circuit just Be often used, by the way that rubber ring is arranged, the inside of rubber ring mutually squeezes with the inserted sheet of plug, while plug be equipped with the end of inserted sheet with Rubber ring mutually squeezes, and external rainwater is avoided to enter in waterproof jack so that the use of internal circuit is safer, outstanding to be promoted The safety that hanging power controller uses.
The inside of rubber ring 312 be equipped with V-shaped groove 313, the opening of V-shaped groove 313 towards the outside of waterproof jack 311, just in case Rainwater enters on the inside of rubber ring can be along the side wall of V-shaped groove, and rainwater can enter in V-shaped groove, without entering in waterproof jack Portion is further ensured that the safety that suspension type power-supply controller of electric uses.
In addition to above preferred embodiment, the utility model also has other embodiments, and those skilled in the art can root It is made various changes and modifications according to the utility model, without departing from the spirit of the utility model, the utility model should all be belonged to Range defined in appended claims.

Claims (10)

1. a kind of suspension type power-supply controller of electric for high-voltage switch gear detection device, high-voltage switch gear is set in high-tension switch cabinet, is hanged The connector and be set to insulation board that hanging power controller includes insulation board, is connect set on insulation board upper end and with high-tension switch cabinet The mounting base in center, the lower part of mounting base be equipped with the first socket being electrically connected with external power supply and be electrically connected with detection device the Two sockets are electrically connected with power switch and earth leakage protective device between the first socket and the second socket, which is characterized in that the installation It is additionally provided with ground protection module on seat, ground protection module includes the detection circuit and detection circuit being electrically connected with detection device The controller of electrical connection and the display screen being electrically connected with the controller, detection circuit include for measuring and inspecting apparatus earth current Grounded inspection circuit and ground resistance measuring circuit for measuring and inspecting apparatus ground resistance are equipped with predetermined current in controller Value and predetermined resistance value, when the earth current that grounded inspection circuit measures is more than pre-set current value or the survey of ground resistance measuring circuit When the ground resistance obtained is more than predetermined resistance value, controller controls earth leakage protective device and disconnects.
2. suspension type power-supply controller of electric according to claim 1, which is characterized in that the connector is hook, alternatively, institute It is magnet to state connector.
3. suspension type power-supply controller of electric according to claim 1, which is characterized in that first socket and the second socket are equal Including waterproof jack, waterproof jack is equipped with rubber ring, and the inside of rubber ring is located in waterproof jack, and the upper end of rubber ring is higher by In the upper end of waterproof jack.
4. suspension type power-supply controller of electric according to claim 3, which is characterized in that the inside of the rubber ring is equipped with V-arrangement Slot, the opening of V-shaped groove is towards the outside of waterproof jack.
5. suspension type power-supply controller of electric according to claim 1, which is characterized in that the lower part of the mounting base and close to the Equipment access port is equipped at two sockets, detection device is electrically connected by equipment access port with detection circuit.
6. suspension type power-supply controller of electric according to claim 1, which is characterized in that be additionally provided with alarm in the mounting base Device, alarm are electrically connected with the controller, when the earth current that grounded inspection circuit measures is more than pre-set current value or ground resistance When the ground resistance that measuring circuit measures is more than predetermined resistance value, alarm sends out alarm.
7. suspension type power-supply controller of electric according to claim 1, which is characterized in that be additionally provided with and control in the mounting base The button of device connection, controller adjust pre-set current value and predetermined resistance value by button.
8. suspension type power-supply controller of electric according to claim 1, which is characterized in that the mounting base is equipped with for testing The debugging interface whether ground protection module works normally.
9. the suspension type power-supply controller of electric according to claim 1 to 8 any one, which is characterized in that in the mounting base It is additionally provided with power transformer, controller is electrically connected by power transformer with the first socket.
10. the suspension type power-supply controller of electric according to claim 1 to 8 any one, which is characterized in that the mounting base Outside is equipped with transparent casing, the lower end of transparent casing be equipped with for connecting line by connector.
CN201820547447.4U 2018-04-17 2018-04-17 A kind of suspension type power-supply controller of electric for high-voltage switch gear detection device Active CN207976549U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820547447.4U CN207976549U (en) 2018-04-17 2018-04-17 A kind of suspension type power-supply controller of electric for high-voltage switch gear detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820547447.4U CN207976549U (en) 2018-04-17 2018-04-17 A kind of suspension type power-supply controller of electric for high-voltage switch gear detection device

Publications (1)

Publication Number Publication Date
CN207976549U true CN207976549U (en) 2018-10-16

Family

ID=63763523

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820547447.4U Active CN207976549U (en) 2018-04-17 2018-04-17 A kind of suspension type power-supply controller of electric for high-voltage switch gear detection device

Country Status (1)

Country Link
CN (1) CN207976549U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110780191A (en) * 2019-09-27 2020-02-11 国网浙江省电力有限公司杭州供电公司 On-line monitoring method and device for mechanical characteristics of circuit breaker based on multiple sensors
CN111162457A (en) * 2020-01-14 2020-05-15 益阳玲智工程技术有限公司 Pre-alarm device for low-voltage power distribution cabinet

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110780191A (en) * 2019-09-27 2020-02-11 国网浙江省电力有限公司杭州供电公司 On-line monitoring method and device for mechanical characteristics of circuit breaker based on multiple sensors
CN110780191B (en) * 2019-09-27 2022-04-29 国网浙江省电力有限公司杭州供电公司 On-line monitoring method and device for mechanical characteristics of circuit breaker based on multiple sensors
CN111162457A (en) * 2020-01-14 2020-05-15 益阳玲智工程技术有限公司 Pre-alarm device for low-voltage power distribution cabinet
CN111162457B (en) * 2020-01-14 2021-10-29 益阳玲智工程技术有限公司 Pre-alarm device for low-voltage power distribution cabinet

Similar Documents

Publication Publication Date Title
CN207976549U (en) A kind of suspension type power-supply controller of electric for high-voltage switch gear detection device
CN111313327B (en) Handheld intelligent electrical circuit parameter inspection device, system and method
CN202631672U (en) Portable detector for indicator with short-circuit and grounding fault
CN105044542A (en) State automatic detection method of temporary grounding line of electrical equipment
CN212255514U (en) Transformer data parameter intelligent detector
CN108680817A (en) A kind of suspension type power-supply controller of electric
CN105572517A (en) Online monitoring type intelligent electrified switching-in protection device of lightning arrester and control method
CN109244700A (en) A kind of anti-error hanging earthing conductor device and control method
CN219552580U (en) Water-resistant test box for cable
CN107247177B (en) Remote control distribution network electricity testing and grounding wire detection device
CN209071636U (en) A kind of anti-error hanging earthing conductor device
US9470730B2 (en) Self-monitoring power supply cord and operating equipment
CN208752157U (en) Portable high-pressure direct current cabinet PDU socket detector
CN209861060U (en) Anti-misplug device and electronic product production system
CN209327437U (en) A kind of AC current detector
CN219891312U (en) Cable test high voltage generating device
CN220820160U (en) LED lamp strip detection device
CN217766816U (en) Device for checking wrong wiring of electric energy meter
CN205680881U (en) Bobbin cable universal connector the end of a thread
CN217112524U (en) Intelligent device with alarm function for live replacement of online monitoring meter of lightning arrester
US11913978B2 (en) Wireless voltage measurement, testing and analytics system
CN218675154U (en) Charging interface measurement simulator
CN2648452Y (en) Examining and repairing protector for high pressure equipment
CN203519705U (en) DC electroscope
CN213658889U (en) Aerial line ground fault finder

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant