CN102087326A - Uninterrupted power test method for 330kv metal zinc oxide arrester leakage current - Google Patents
Uninterrupted power test method for 330kv metal zinc oxide arrester leakage current Download PDFInfo
- Publication number
- CN102087326A CN102087326A CN 201110020816 CN201110020816A CN102087326A CN 102087326 A CN102087326 A CN 102087326A CN 201110020816 CN201110020816 CN 201110020816 CN 201110020816 A CN201110020816 A CN 201110020816A CN 102087326 A CN102087326 A CN 102087326A
- Authority
- CN
- China
- Prior art keywords
- zinc oxide
- metal zinc
- lightning arrester
- voltage
- reading
- 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.)
- Pending
Links
Images
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The present invention discloses an uninterrupted power test method for 330kv metal zinc oxide arrester leakage current, including the steps of: disconnecting a counter, connecting a high voltage output end of a direct current generator and a direct current ampere meter with a metal zinc oxide lightning arrester, and connecting the voltage test end with a direct current microammeter. The rest of steps are implemented in such a way that: when the reading of the direct current ampere meter reaches 1mA, the reading of the direct current microammeter is the 1mA voltage of the metal zinc oxide lightning arrester; the output voltage is adjusted; and when the reading of the direct current microammeter equals to three quarters of 1mA voltage, the reading of the direct current ampere meter is the leakage current of the metal zinc oxide lightning arrester. The uninterrupted power test method for 330kv metal zinc oxide arrester leakage current can perform the leakage current test with only need of disconnecting the grounding of the counter of the metal zinc oxide lightning arrester, and because the ground point of bus is still, the test program is simplified; and simultaneously because the working time at high altitude is shortened, the work danger is reduced.
Description
Technical field
The invention belongs to metal zinc oxide lightning arrester method of testing technical field, be specifically related to a kind of uninterrupted power test method of 330KV metal zinc oxide leakage current of an arrester.
Background technology
Metal zinc oxide lightning arrester (MOA) is the major equipment that electric system prevents thunder and lightning, switching overvoltage, for guaranteeing the safe operation of metal Zinc-Oxide Arrester Zinc-Oxide Arrester, need regularly to carry out charged and have a power failure test to the metal zinc oxide lightning arrester, for example, annual according to electrical test equipment period defining 330KV metal zinc oxide lightning arrester live testing, the test that has a power failure is every two years carried out once.According to " state's net power transmission and transformation equipment state overhauling rules " regulation, 330KV metal zinc oxide lightning arrester routine has a power failure should carry out the test of leakage current under every joint metal zinc oxide lightning arrester and the 75%1mA voltage.
When the work on the spot of 330KV metal zinc oxide lightning arrester, every is to be composed in series by single metal zinc oxide lightning arrester of upper and lower two joints mutually, last joint metal zinc oxide lightning arrester directly is connected with bus YH or directly is connected with circuit, and circuit or the direct ground connection of bus YH, the lower end of saving the metal zinc oxide lightning arrester down is connected with counter, counter ground connection.
Existing power failure testing requirements metal zinc oxide lightning arrester and miscellaneous equipment break away from, this has come many inconvenience just for regular test tape, during as joint test on carrying out 330KV metal zinc oxide lightning arrester, it to be removed with the lead-in wire that is connected of equipment, because the metal zinc oxide lightning arrester is higher apart from ground, and connected lead-in wire cross section is thicker, it is big to cause removing the lead-in wire working strength, waste time and energy, job schedule is slow, and the required working time is long, and the induced voltage of 330KV metal zinc oxide lightning arrester system is stronger simultaneously, induced electricity fiber crops electrical phenomena takes place in staff easily when work, and the staff is had certain danger.
Summary of the invention
The technical problem to be solved in the present invention is: the shortcoming that exists at prior art is with not enough, the invention discloses a kind of easy, save time the uninterrupted power test method of the 330KV metal zinc oxide leakage current of an arrester of strong operability and safety.
At above-mentioned technical matters, the present invention proposes following technical scheme.
The uninterrupted power test method of 330KV metal zinc oxide leakage current of an arrester may further comprise the steps:
(1) will save metal zinc oxide lightning arrester and counter down disconnects, the high-voltage output end of 300KV dc generator is linked to each other with "-" terminals of DC ammeter, "+" terminals of DC ammeter are connected to the junction of upper and lower joint metal zinc oxide lightning arrester, and the voltage tester end of 300KV dc generator links to each other with DC microammeter;
(2) start the 300KV dc generator, when the reading of DC ammeter reaches 1mA, the reading of DC microammeter is promptly gone up the 1mA voltage of joint metal zinc oxide lightning arrester, high-voltage output end to the 300KV dc generator discharges and the adjustment output voltage then, when the reading on the DC microammeter equaled 75% 1mA voltage, the reading of DC ammeter was promptly gone up the leakage current of joint metal zinc oxide lightning arrester;
(3) after upward the leakage current of joint metal zinc oxide lightning arrester is measured, "-" terminals of DC ammeter are linked to each other with the lower end of saving the metal zinc oxide lightning arrester down, "+" terminals ground connection of DC ammeter, the high-voltage output end of 300KV dc generator is connected directly to, save the junction of metal zinc oxide lightning arrester down, start the 300KV dc generator, when the reading of DC ammeter reaches 1mA, the reading of DC microammeter promptly saves the 1mA voltage of metal zinc oxide lightning arrester down, high-voltage output end to the 300KV dc generator discharges and the adjustment output voltage then, when the reading on the DC microammeter equaled 75% 1mA voltage, the reading of DC ammeter promptly saved the leakage current of metal zinc oxide lightning arrester down.
Described DC ammeter is the 1000mA DC ammeter.
Beneficial effect of the present invention is embodied in: the uninterrupted power test method of 330KV metal zinc oxide leakage current of an arrester of the present invention only needs the ground connection of the counter of metal zinc oxide lightning arrester is opened, just can carry out the test of leakage current, because busbar grounding point is motionless, test process need not upward joint lead-in wire is opened or removed to circuit or busbar grounding point, simplified test procedure, the time and labour saving owing to reduced the time of work high above the ground, greatly reduces operation danger simultaneously.
Description of drawings
Fig. 1 is for measuring the synoptic diagram of going up joint metal zinc oxide leakage current of an arrester;
Fig. 2 is for measuring the synoptic diagram of joint metal zinc oxide leakage current of an arrester down.
Embodiment
The invention will be further described below in conjunction with embodiment and accompanying drawing.
Referring to Fig. 1-2, the uninterrupted power test method of 330KV metal zinc oxide leakage current of an arrester may further comprise the steps:
(1) will save metal zinc oxide lightning arrester and counter down disconnects, the wiring of 300KV dc generator is connected, the high-voltage output end of 300KV dc generator is directly linked to each other with "-" terminals of 1000mA DC ammeter, "+" terminals of 1000mA DC ammeter are connected to the junction of upper and lower joint metal zinc oxide lightning arrester by lead-in wire, and the voltage tester end of 300KV dc generator links to each other with DC microammeter;
(2) select the suitable gear of DC microammeter as required, inspection apparatus, the table meter, begin test after test connection is all correct, start the 300KV dc generator, DC current flows into the earth and ground connection formation loop by the valve block of last joint metal zinc oxide lightning arrester, when the 1000mA DC ammeter reaches 1mA, the numerical value of DC microammeter is promptly gone up the 1mA voltage of joint metal zinc oxide lightning arrester, high-voltage output end to the 300KV dc generator discharges and the adjustment output voltage then, when the reading on the DC microammeter equaled 75% 1mA voltage, the reading of DC ammeter was promptly gone up the leakage current of joint metal zinc oxide lightning arrester;
(3) after upward the leakage current of joint metal zinc oxide lightning arrester is measured, "-" terminals of 1000mA DC ammeter are linked to each other with the lower end of saving the metal zinc oxide lightning arrester down, "+" terminals ground connection of 1000mA DC ammeter, the high-voltage output end of 300KV dc generator is connected directly to, save the junction of metal zinc oxide lightning arrester down, inspection apparatus, the table meter, begin test after test connection is all correct, start the 300KV dc generator, DC current is by saving the valve block of metal zinc oxide lightning arrester down, DC microammeter flows into the earth and constitutes the loop, when the 1000mA DC ammeter reaches 1mA, the numerical value of DC microammeter promptly saves the 1mA voltage of metal zinc oxide lightning arrester down, high-voltage output end to the 300KV dc generator discharges and the adjustment output voltage then, when the reading on the DC microammeter equaled 75% 1mA voltage, the reading of DC ammeter promptly saved the leakage current of metal zinc oxide lightning arrester down.
Above content is to further describing that the present invention did in conjunction with concrete preferred implementation; can not assert that the specific embodiment of the present invention only limits to this; for the general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by claims of being submitted to.
Claims (2)
1.330KV the uninterrupted power test method of metal zinc oxide leakage current of an arrester is characterized in that: may further comprise the steps:
(1) will save metal zinc oxide lightning arrester and counter down disconnects, the high-voltage output end of 300KV dc generator is linked to each other with "-" terminals of DC ammeter, "+" terminals of DC ammeter are connected to the junction of upper and lower joint metal zinc oxide lightning arrester, and the voltage tester end of 300KV dc generator links to each other with DC microammeter;
(2) start the 300KV dc generator, when the reading of DC ammeter reaches 1mA, the reading of DC microammeter is promptly gone up the 1mA voltage of joint metal zinc oxide lightning arrester, high-voltage output end to the 300KV dc generator discharges and the adjustment output voltage then, when the reading on the DC microammeter equaled 75% 1mA voltage, the reading of DC ammeter was promptly gone up the leakage current of joint metal zinc oxide lightning arrester;
(3) after upward the leakage current of joint metal zinc oxide lightning arrester is measured, "-" terminals of DC ammeter are linked to each other with the lower end of saving the metal zinc oxide lightning arrester down, "+" terminals ground connection of DC ammeter, the high-voltage output end of 300KV dc generator is connected directly to, save the junction of metal zinc oxide lightning arrester down, start the 300KV dc generator, when the reading of DC ammeter reaches 1mA, the reading of DC microammeter promptly saves the 1mA voltage of metal zinc oxide lightning arrester down, high-voltage output end to the 300KV dc generator discharges and the adjustment output voltage then, when the reading on the DC microammeter equaled 75% 1mA voltage, the reading of DC ammeter promptly saved the leakage current of metal zinc oxide lightning arrester down.
2. according to the uninterrupted power test method of the described 330KV metal zinc oxide of claim 1 leakage current of an arrester, it is characterized in that: described DC ammeter is the 1000mA DC ammeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110020816 CN102087326A (en) | 2011-01-18 | 2011-01-18 | Uninterrupted power test method for 330kv metal zinc oxide arrester leakage current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110020816 CN102087326A (en) | 2011-01-18 | 2011-01-18 | Uninterrupted power test method for 330kv metal zinc oxide arrester leakage current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102087326A true CN102087326A (en) | 2011-06-08 |
Family
ID=44099220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110020816 Pending CN102087326A (en) | 2011-01-18 | 2011-01-18 | Uninterrupted power test method for 330kv metal zinc oxide arrester leakage current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102087326A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137165A (en) * | 2015-09-02 | 2015-12-09 | 国家电网公司 | Test device capable of highly-precisely measuring leakage current of test sample |
| CN105137267A (en) * | 2015-09-02 | 2015-12-09 | 国家电网公司 | Test device for directly measuring leakage current of test sample and wirelessly outputting data |
| CN105572537A (en) * | 2016-01-27 | 2016-05-11 | 刘冰 | Testing method for lightning arrester of transformer station in power grid |
| CN106383290A (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 method for on-line test of leakage current of direct-current arrester |
| CN107843801A (en) * | 2017-10-23 | 2018-03-27 | 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 | A kind of method of testing of oscillation device arrester |
| CN111856113A (en) * | 2020-06-24 | 2020-10-30 | 国网山东省电力公司淄博供电公司 | Non-intrusive measurement method for true leakage current of zinc oxide arrester |
| CN111856114A (en) * | 2020-06-24 | 2020-10-30 | 国网山东省电力公司淄博供电公司 | Lightning arrester leakage current testing system and method for eliminating parasitic parameter influence |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101246196A (en) * | 2008-03-24 | 2008-08-20 | 江苏省电力公司南京供电公司 | Double-segment zinc oxide lightning arrester insulation status testing method |
-
2011
- 2011-01-18 CN CN 201110020816 patent/CN102087326A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101246196A (en) * | 2008-03-24 | 2008-08-20 | 江苏省电力公司南京供电公司 | Double-segment zinc oxide lightning arrester insulation status testing method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137165A (en) * | 2015-09-02 | 2015-12-09 | 国家电网公司 | Test device capable of highly-precisely measuring leakage current of test sample |
| CN105137267A (en) * | 2015-09-02 | 2015-12-09 | 国家电网公司 | Test device for directly measuring leakage current of test sample and wirelessly outputting data |
| CN105572537A (en) * | 2016-01-27 | 2016-05-11 | 刘冰 | Testing method for lightning arrester of transformer station in power grid |
| CN106383290A (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 method for on-line test of leakage current of direct-current arrester |
| CN107843801A (en) * | 2017-10-23 | 2018-03-27 | 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 | A kind of method of testing of oscillation device arrester |
| CN111856113A (en) * | 2020-06-24 | 2020-10-30 | 国网山东省电力公司淄博供电公司 | Non-intrusive measurement method for true leakage current of zinc oxide arrester |
| CN111856114A (en) * | 2020-06-24 | 2020-10-30 | 国网山东省电力公司淄博供电公司 | Lightning arrester leakage current testing system and method for eliminating parasitic parameter influence |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102087326A (en) | Uninterrupted power test method for 330kv metal zinc oxide arrester leakage current | |
| CN102435899A (en) | Locomotive traction converter test apparatus and method thereof | |
| CN102023249A (en) | Method for performing preventive test without detaching high-voltage lead of 220-kV zinc oxide arrestor | |
| CN103344821A (en) | Transient overvoltage on-line monitoring system based on CVT and provided with built-in low-voltage capacitor | |
| CN105891606A (en) | Device for testing tower grounding resistance through disassembly-free ground lead | |
| CN201327509Y (en) | High-voltage transmission line parameter measuring device and system thereof | |
| CN106707030B (en) | Method and device for measuring ground impedance and power loss of distribution transformer | |
| CN101975913A (en) | Equipment and method for testing two or more sections of zinc oxide arresters without detaching leads | |
| CN105277773A (en) | Method for completely calculating grounding short-circuit current of transformation station | |
| CN103995227B (en) | The planned state test method of distribution switch | |
| CN202231361U (en) | 10kV multifunctional safe tool | |
| CN202676801U (en) | Wiring tester used for photovoltaic array header box | |
| CN201725007U (en) | Portable power frequency insulation test device with functions of voltage waveform analysis and filtration | |
| CN113219368A (en) | Power plant generator-transformer unit short circuit test method and system | |
| CN212031609U (en) | High-voltage testing system for photovoltaic inverter | |
| CN203179221U (en) | Transformer high/low voltage fuse burn-out remote alarm device | |
| CN105277854B (en) | A kind of arrester ground indicator | |
| CN102053204A (en) | Uninterrupted testing method for 1mA voltage of 330kV metal zinc oxide arrester (MOA) | |
| CN207067306U (en) | For searching the servicing unit of DC system grounding point failure | |
| CN204905877U (en) | Mountain area low voltage distribution system with reactive compensation function | |
| CN107561406A (en) | It is a kind of based on fault line selection method for single-phase-to-ground fault of the multiterminal than width phase comparing method | |
| CN206193104U (en) | Measurement device for distribution transformer earth impedance , power consumption | |
| CN102087315A (en) | Uninterrupted-power test method for insulation resistance of 330 kV metal zinc oxide arrester | |
| CN205620457U (en) | PT secondary voltage signal isolation sampling device based on isolation transformer | |
| CN107367670A (en) | A kind of fault line selection method for single-phase-to-ground fault based on quintuple harmonics electric current |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110608 |