CN205123247U - Modular overvoltage protection device power frequency discharge detection test device - Google Patents
Modular overvoltage protection device power frequency discharge detection test device Download PDFInfo
- Publication number
- CN205123247U CN205123247U CN201520880958.4U CN201520880958U CN205123247U CN 205123247 U CN205123247 U CN 205123247U CN 201520880958 U CN201520880958 U CN 201520880958U CN 205123247 U CN205123247 U CN 205123247U
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- circuit
- supply module
- inverter
- control unit
- overvoltage protection
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- Expired - Fee Related
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- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 238000001514 detection method Methods 0.000 title claims abstract description 10
- 238000005259 measurement Methods 0.000 claims abstract description 28
- 230000001012 protector Effects 0.000 claims description 17
- 238000002474 experimental method Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000006378 damage Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model relates to a modular overvoltage protection device power frequency discharge detection test device, its technical scheme is: including display screen, inner memorizer, the control unit, keyboard, battery, invertion power supply module, dc supply module, current measurement circuit, measure protection circuit, voltage measurement circuit, try article overvoltage protection device, the control unit connects display screen, inner memorizer, the control unit, keyboard, invertion power supply module, dc supply module, current measurement circuit, measurement protection circuit and voltage measurement circuit respectively, the battery is connected respectively to invertion power supply module and dc supply module, current measurement circuit and voltage measurement circuit connection measure the protection circuit, voltage measurement circuit connection is tried article overvoltage protection device, the beneficial effects of the utility model are that: simple structure, easy and simple to handle has characteristics such as the measuring current scope is wide, the interference killing feature is strong, measure the accuracy height, the measurement is with low costs.
Description
Technical field
The utility model relates to a kind of voltage protector testing equipment, particularly a kind of combination overvoltage protector power-frequency discharge detection experiment device.
Background technology
Three phase combined overvoltage protector is in order to limit lightning overvoltage, the various temporary overvoltages that may occur in Overvoltage of Vacuum Disconnectors in Operation and electric power system, effectively can protect motor, transformer, switch, capacitor, cable, the insulation of the power equipments such as bus is without prejudice, all reliable restriction can be played to alternate and relatively overvoltage, mainly be divided into and have series gap overvoltage protector and the large class of gapless overvoltage protector two, its pilot project content requires to use high pressure industrial frequency AC and high-voltage DC power supply respectively, special tester is not also had to meet test request at present.
The importance of 10kV overvoltage protection device; The various temporary overvoltages that may occur in lightning overvoltage, Overvoltage of Vacuum Disconnectors in Operation and electric power system, to the generation unnecessary harm of the power equipments such as motor, transformer, switch, capacitor, cable, bus, apparatus insulated damage may be made or damages electric equipment.As the lightning arrester of overvoltage protection; be widely used in electric power system; based on its protection philosophy: be applicable to over-voltage waveform front end steep; frequency is high; but the environment that subsequent current is little; and its overvoltage protection releases with short circuit after overvoltage to realize, and is applicable to the circuit under lightning overvoltage and equipment protection.And for the equipment protection in order to limit under the various temporary overvoltages that may occur in power-frequency overvoltage in lightning overvoltage, vacuum circuit breaker operating process and electric power system, be that traditional lightning arrester is incompetent.
The meaning and value that 10kV overvoltage protection device detects: to the test of overvoltage protection device, should meet " DL/T474.5-2006 " on-the-spot Insulation Test and implement the requirement of directive/guide the 5th part test of lightning arrester.Three phase combined over-voltage protector is mainly divided into series gap overvoltage protector and the large class of gapless overvoltage protector two; its pilot project content requires to use high pressure industrial frequency AC and high-voltage DC power supply respectively, does not also have special tester to meet test request at present.Therefore; utility model is a kind of for 10kV electric pressure and following three phase combined novel overvoltage protection comprehensive detection device; for three phase combined over-voltage protector debugging and pilot project, discovering device built-in electrical insulation makes moist and the dangerous defect such as valve block is aging early.
Utility model content
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, provides a kind of combination overvoltage protector power-frequency discharge detection experiment device.
Its technical scheme is: comprise display screen, internal storage, control unit, keyboard, battery, Inverter, direct current supply module, current measurement circuit, measuring and protecting circuit, tension measuring circuit, test specimen overvoltage protection device, control unit connects display screen respectively, internal storage, control unit, keyboard, Inverter, direct current supply module, current measurement circuit, measuring and protecting circuit and tension measuring circuit, Inverter is connected battery respectively with direct current supply module, described current measurement circuit is connected measuring and protecting circuit with tension measuring circuit, tension measuring circuit connects test specimen overvoltage protection device.
Above-mentioned Inverter is 50Hz inverter.
The input/output terminal of described single-chip microcomputer connects touch LCD display, single-chip microcomputer is connected to battery by DC power-supply circuit, and battery is connected to H.V. step up transformer by 50Hz inverter, current-voltage measurement, output disconnect, H.V. step up transformer is connected to test specimen, described current-voltage measurement outputs in single-chip microcomputer, then by being connected to output disconnect after single-chip microcomputer process.
The beneficial effects of the utility model are: structure is simple, easy and simple to handle; have and measure the features such as current range is wide, antijamming capability is strong, measurement accuracy is high, measurement cost is low; 10kV electric pressure can be widely used in and the following series gap three phase combined over-voltage protector that has detects; rapid to there being series gap three-phase overvoltage protection device power-frequency discharge test response, the overvoltage impact to three-phase overvoltage protection device when effectively reducing test.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is power-frequency discharge test principle figure of the present utility model;
In upper figure: display screen 1, internal storage 2, control unit 3, keyboard 4, battery 5, Inverter 6, direct current supply module 7, current measurement circuit 8, measuring and protecting circuit 9, tension measuring circuit 10, test specimen overvoltage protection device 11.
Embodiment
1-2 by reference to the accompanying drawings, the utility model will be further described:
The combination overvoltage protector power-frequency discharge detection experiment device that the utility model is mentioned, comprise display screen 1, internal storage 2, control unit 3, keyboard 4, battery 5, Inverter 6, direct current supply module 7, current measurement circuit 8, measuring and protecting circuit 9, tension measuring circuit 10, test specimen overvoltage protection device 11, control unit 3 connects display screen 1 respectively, internal storage 2, control unit 3, keyboard 4, Inverter 6, direct current supply module 7, current measurement circuit 8, measuring and protecting circuit 9 and tension measuring circuit 10, Inverter 6 is connected battery 5 respectively with direct current supply module 7, described current measurement circuit 8 is connected measuring and protecting circuit 9 with tension measuring circuit 10, tension measuring circuit 10 connects test specimen overvoltage protection device 11.
Above-mentioned Inverter 6 is 50Hz inverter.
The input/output terminal of described single-chip microcomputer connects touch LCD display, single-chip microcomputer is connected to battery by DC power-supply circuit, and battery is connected to H.V. step up transformer by 50Hz inverter, current-voltage measurement, output disconnect, H.V. step up transformer is connected to test specimen, described current-voltage measurement outputs in single-chip microcomputer, then by being connected to output disconnect after single-chip microcomputer process; Above-mentioned battery connects external power supply by charging circuit.
The combination overvoltage protector power-frequency discharge that the utility model is mentioned detects method for testing, comprises the following steps:
When carrying out power-frequency discharge test to there being series gap overvoltage protection device, the instruction that keyboard 4 inputs is detected by control unit 3, control supply module to output to Inverter 6 and input simultaneously, through any two-phase of inverter to test specimen overvoltage protection device 11, pressurize with 0.1kV stepping between any phase and ground connection and start to test, can record when current feedback loop detects current break and now execute alive value and in the output of 0.2 second internal cutting off Inverter 6, test result is shown to display screen 1 by control unit 3 simultaneously, each measurement interval is not less than 15 seconds, measure three times, average, corresponding fast to overvoltage or overcurrent feedback signal, when carrying out power-frequency discharge test to there being series gap overvoltage protection device, can at 0.2s internal cutting off power frequency supply when current break being detected, the overvoltage impact of three-phase overvoltage protection device when effectively reducing test.
The above, be only part preferred embodiment of the present utility model, any those of ordinary skill in the art all may utilize the technical scheme correct of above-mentioned elaboration or are revised as equivalent technical scheme.Therefore, any simple modification of carrying out according to the technical solution of the utility model or substitute equivalents, belong to the greatest extent the scope that the utility model is claimed.
Claims (3)
1. a combination overvoltage protector power-frequency discharge detection experiment device, is characterized in that: comprise display screen (1), internal storage (2), control unit (3), keyboard (4), battery (5), Inverter (6), direct current supply module (7), current measurement circuit (8), measuring and protecting circuit (9), tension measuring circuit (10), test specimen overvoltage protection device (11), control unit (3) connects display screen (1) respectively, internal storage (2), control unit (3), keyboard (4), Inverter (6), direct current supply module (7), current measurement circuit (8), measuring and protecting circuit (9) and tension measuring circuit (10), Inverter (6) is connected battery (5) respectively with direct current supply module (7), described current measurement circuit (8) is connected measuring and protecting circuit (9) with tension measuring circuit (10), tension measuring circuit (10) connects test specimen overvoltage protection device (11), and control unit (3) is single-chip microcomputer.
2. a kind of combination overvoltage protector power-frequency discharge detection experiment device according to claim 1, is characterized in that: described Inverter (6) is 50Hz inverter.
3. a kind of combination overvoltage protector power-frequency discharge detection experiment device according to claim 1; it is characterized in that: the input/output terminal of described single-chip microcomputer connects touch LCD display; single-chip microcomputer is connected to battery by DC power-supply circuit; and battery is connected to H.V. step up transformer by 50Hz inverter, current-voltage measurement, output disconnect; H.V. step up transformer is connected to test specimen; described current-voltage measurement outputs in single-chip microcomputer, then by being connected to output disconnect after single-chip microcomputer process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520880958.4U CN205123247U (en) | 2015-11-06 | 2015-11-06 | Modular overvoltage protection device power frequency discharge detection test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520880958.4U CN205123247U (en) | 2015-11-06 | 2015-11-06 | Modular overvoltage protection device power frequency discharge detection test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205123247U true CN205123247U (en) | 2016-03-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520880958.4U Expired - Fee Related CN205123247U (en) | 2015-11-06 | 2015-11-06 | Modular overvoltage protection device power frequency discharge detection test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205123247U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929292A (en) * | 2016-07-13 | 2016-09-07 | 国网山东省电力公司东营供电公司 | Three-phase overvoltage protection device comprehensive detection apparatus and method |
| CN114217244A (en) * | 2021-11-29 | 2022-03-22 | 广西电网有限责任公司玉林供电局 | Multifunctional diagnosis device and method for power transmission high-voltage cable |
| CN115586411A (en) * | 2022-12-12 | 2023-01-10 | 安徽凯川电力保护设备有限公司 | Automatic voltage-rise and leakage current test device for overvoltage protector |
-
2015
- 2015-11-06 CN CN201520880958.4U patent/CN205123247U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929292A (en) * | 2016-07-13 | 2016-09-07 | 国网山东省电力公司东营供电公司 | Three-phase overvoltage protection device comprehensive detection apparatus and method |
| CN114217244A (en) * | 2021-11-29 | 2022-03-22 | 广西电网有限责任公司玉林供电局 | Multifunctional diagnosis device and method for power transmission high-voltage cable |
| CN115586411A (en) * | 2022-12-12 | 2023-01-10 | 安徽凯川电力保护设备有限公司 | Automatic voltage-rise and leakage current test device for overvoltage protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20171106 |