CN202421403U - Direct current leakage test device for zinc oxide lightning arrester - Google Patents
Direct current leakage test device for zinc oxide lightning arrester Download PDFInfo
- Publication number
- CN202421403U CN202421403U CN2012200173007U CN201220017300U CN202421403U CN 202421403 U CN202421403 U CN 202421403U CN 2012200173007 U CN2012200173007 U CN 2012200173007U CN 201220017300 U CN201220017300 U CN 201220017300U CN 202421403 U CN202421403 U CN 202421403U
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- insulating bar
- direct current
- current leakage
- lightning arrester
- leakage test
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Abstract
The utility model relates to a test device for a lightning arrester, and particularly relates to a direct current leakage test device for a zinc oxide lightning arrester. The device comprises a retractable insulating bar. The device is characterized in that the retractable insulating bar is fixed on a base; one end of a test lead wire is extended from the top of the retractable insulating bar; and the other end of the test lead wire is extended from a position of the retractable insulating bar which is 1-2 meters away from the ground, and is connected with the direct current leakage test device. By adjusting the height of the insulating bar based on the insulativity and retractability of the retractable insulating bar, the utility model satisfies the requirement that the included angle of lead wires between a lightning arrester and a direct current high-voltage generator in the detection process is 90 degrees. The device has the advantages of convenient assembling and disassembling process and low cost, and can effectively improve the detection precision and reliability as well as the security of detection personnel.
Description
Technical field
The utility model relates to the test unit of lightning arrester, particularly a kind of Zinc-Oxide Arrester direct current leakage test unit.
Background technology
Zinc-Oxide Arrester is the very important protective device of transformer station, and it mainly is made up of Zinc-Oxide Arrester Zinc-oxide piezoresistor.Each piece voltage dependent resistor (VDR) has certain switching voltage, also is voltage dependent resistor (VDR), and pressure-sensitive resistance value is very big under normal WV, be equivalent to state of insulation, but under the surge voltage effect, it is breakdown that voltage dependent resistor (VDR) is low value, is equivalent to short-circuit condition.Yet voltage dependent resistor (VDR) is hit state, can recover, and after the voltage that is higher than pressure sensitive voltage was cancelled, it had recovered high-impedance state again.Therefore, on the line of electric force as after Zinc-Oxide Arrester is installed, when thunderbolt; The high voltage of lightning wave punctures voltage dependent resistor (VDR); Lightning current flows into the earth through voltage dependent resistor (VDR), makes Control of Voltage on the power lead in safe range, thereby has protected the safety of electric equipment.The detection of Zinc-Oxide Arrester is an extremely important test job, and the accurate test of test figure directly influences the judgement to the lightning arrester health status.Lead angle between lightning arrester direct current leakage testing requirements lightning arrester and the high voltage direct current generator is 90 °; And present test method is to adopt the tester to use the insulation hook stick that high-voltage connection is propped up; Realize that the lead angle between lightning arrester and the high voltage direct current generator is 90 °; Because the angular dimension that personnel's difference of each test is propped up is also different, and the stable shape of test lead is poor, will cause electric field interference, magnetic interference, spatial interference influence to the test data accuracy.
Summary of the invention
The purpose of the utility model is to solve the defective that prior art exists, and it is 90 ° Zinc-Oxide Arrester direct current leakage test unit that a kind of Zinc-Oxide Arrester lead angle between lightning arrester and the high voltage direct current generator in testing process that can effectively guarantee is provided.
The technical scheme of the utility model is: a kind of Zinc-Oxide Arrester direct current leakage test unit; Comprise telescopic insulating bar; It is characterized in that telescopic insulating bar is fixed on the base; Test lead one end is stretched out by the top of telescopic insulating bar, and the other end of test lead is stretched out at 1-2 rice apart from ground by telescopic insulating bar, links to each other with the direct current leakage test unit.
Above-mentioned test lead is installed in the telescopic insulating bar.
The utility model is insulativity and the scalability that utilizes telescopic insulating bar, through regulating the height of insulating bar, satisfies the lead angle between the lightning arrester and high voltage direct current generator in the testing process and be 90 ° requirement.This device has the assembly and disassembly convenience, cost is low, can effectively improve precision, reliability and the testing staff's of detection safety.
Description of drawings
Accompanying drawing 1 is the utility model structural representation.
Embodiment
As shown in Figure 1, on base 1, be fixed with telescopic insulating bar 2, test lead 3 is installed in the insulating bar.The upper end of test lead is stretched out with tested lightning arrester by the insulating bar top and is linked to each other, and the test lead lower end is according to the height of direct current leakage test unit, and the relevant position punching passes on insulating bar.Through adjusting the height of telescopic insulating bar, the test lead that guarantees to stretch out at telescopic insulating bar top be in horizontality after tested lightning arrester is connected, be in horizontality after guaranteeing the test lead lower end simultaneously and the direct current leakage test unit being connected.Like the gauge outfit of direct current leakage test unit during apart from 1.7 meters of floor levels, 1.7 meters punchings apart from ground on insulating bar are drawn test lead with the gauge outfit of direct current leakage test unit and are linked to each other.Height according to the direct current leakage test unit gauge outfit of different size punches in the scope of ground 1-2 rice on insulating bar, as the test lead fairlead.
Claims (2)
1. Zinc-Oxide Arrester direct current leakage test unit; Comprise telescopic insulating bar; It is characterized in that telescopic insulating bar (2) is fixed on the base (1); Test lead (3) one ends are stretched out by the top of telescopic insulating bar, and the other end of test lead is stretched out at 1-2 rice apart from ground by telescopic insulating bar, links to each other with the direct current leakage test unit.
2. Zinc-Oxide Arrester direct current leakage test unit according to claim 1 is characterized in that above-mentioned test lead (3) is installed in the telescopic insulating bar (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200173007U CN202421403U (en) | 2012-01-16 | 2012-01-16 | Direct current leakage test device for zinc oxide lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200173007U CN202421403U (en) | 2012-01-16 | 2012-01-16 | Direct current leakage test device for zinc oxide lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202421403U true CN202421403U (en) | 2012-09-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200173007U Expired - Fee Related CN202421403U (en) | 2012-01-16 | 2012-01-16 | Direct current leakage test device for zinc oxide lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202421403U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018921A (en) * | 2016-06-12 | 2016-10-12 | 国网山东省电力公司济宁供电公司 | Lightning arrester leakage current test auxiliary tool and method |
| CN106066427A (en) * | 2016-06-16 | 2016-11-02 | 国网辽宁省电力有限公司锦州供电公司 | The dielectric loss test instrument of low capacity test product and using method thereof |
| CN106383291A (en) * | 2016-09-26 | 2017-02-08 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Test wiring device and method for field test of leakage current of lightning arrester |
| CN104237571B (en) * | 2013-06-20 | 2017-04-05 | 国家电网公司 | For the pressurized line support meanss of test of lightning arrester |
| CN111880027A (en) * | 2020-07-08 | 2020-11-03 | 贵州电网有限责任公司 | Live-line test system for pole-mounted zinc oxide arrester |
-
2012
- 2012-01-16 CN CN2012200173007U patent/CN202421403U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237571B (en) * | 2013-06-20 | 2017-04-05 | 国家电网公司 | For the pressurized line support meanss of test of lightning arrester |
| CN106018921A (en) * | 2016-06-12 | 2016-10-12 | 国网山东省电力公司济宁供电公司 | Lightning arrester leakage current test auxiliary tool and method |
| CN106066427A (en) * | 2016-06-16 | 2016-11-02 | 国网辽宁省电力有限公司锦州供电公司 | The dielectric loss test instrument of low capacity test product and using method thereof |
| CN106066427B (en) * | 2016-06-16 | 2019-02-15 | 国网辽宁省电力有限公司锦州供电公司 | Dielectric loss test tool and its application method of low capacity test product |
| CN106383291A (en) * | 2016-09-26 | 2017-02-08 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Test wiring device and method for field test of leakage current of lightning arrester |
| CN106383291B (en) * | 2016-09-26 | 2023-05-26 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Test wiring device and method for testing leakage current of lightning arrester on site |
| CN111880027A (en) * | 2020-07-08 | 2020-11-03 | 贵州电网有限责任公司 | Live-line test system for pole-mounted zinc oxide arrester |
| CN111880027B (en) * | 2020-07-08 | 2022-05-17 | 贵州电网有限责任公司 | Live-line test system for pole-mounted zinc oxide arrester |
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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 |
Granted publication date: 20120905 Termination date: 20150116 |
|
| EXPY | Termination of patent right or utility model |