CN102236057B - Method for testing release device supporting lightning arrester - Google Patents
Method for testing release device supporting lightning arrester Download PDFInfo
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- CN102236057B CN102236057B CN 201110008241 CN201110008241A CN102236057B CN 102236057 B CN102236057 B CN 102236057B CN 201110008241 CN201110008241 CN 201110008241 CN 201110008241 A CN201110008241 A CN 201110008241A CN 102236057 B CN102236057 B CN 102236057B
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Abstract
The invention relates to a method for testing a release device supporting a lightning arrester, which is a standard method for testing the release device supporting the lightning arrester to make up imperfection of requirement on the testing method and the test procedure in the conventional release device standard by combining actual operation conditions and massive tests. In the testing method, the test projects and test procedures are requested clearly, the release device sample is subjected to a mechanical test and a seal test in sequence according to the actual operation conditions of the release device, or is subjected to a temperature tolerance cycling test or a sheath insulation tolerance test, an impact current tolerance test, a small power frequency current tolerance test and an action characteristic test, and the release device sample can be evaluated to be qualified only when simultaneously meeting all the test requirements.
Description
Technical field
The present invention relates to a kind of lightning arrester supporting with release unit performance test method.
Background technology
Lightning arrester uses release unit as the auxiliary products of lightning arrester, and the use of connecting with lightning arrester generally is directly installed on the arrester ground side, isolation lightning arrester and earth potential.
The mounting means of release unit and supporting lightning arrester can be divided into: integral type and accessories type.
When lightning arrester normally moves, release unit should have the tolerance identical with lightning arrester, and can reliably be failure to actuate, only have when surge arrester failure, thereby the release unit action is with lightning arrester and isolation of system, anti-locking system sustained fault, and provide visual identification, in order to replace as early as possible the lightning arrester of fault.
Only be that rush of current and operating duty resistance test verify that performance that it reliably is failure to actuate and ampere-time characteristic verify the performance that it can action message to the testing requirements of release unit among act.std GB11032-2000, GB/T7327-2008 and the IEC60099-4:2009.But find in actual motion, the release unit that can satisfy these standard-requireds still can't well cooperate with lightning arrester, the situation of release unit tripping or malfunction usually occurs.Applicant of the present invention is in order to test the supporting performance with release unit of lightning arrester, sum up the deficiency that existing release unit standard exists at testing requirements, test method and test routine by a large amount of release unit performance tests and on-the-spot running status research, this illustrates that existing release unit standard-required and test method can't guarantee effectively that the performance of release unit is qualified.
Summary of the invention
Purpose of the present invention, just provide a kind of supporting release unit performance test method of using of lightning arrester that is applicable to, the situation that can not occur release unit tripping or malfunction by the release unit of this method of testing satisfies the existing operating mode of installing to the supporting performance requirement with release unit of lightning arrester.
When carrying out performance test to lightning arrester is supporting with release unit, the release unit of reply same type in certain sequence step successively carries out, lightning arrester is supporting should not to move under continuous running voltage and during various superpotential with release unit, the ability that should have the tolerance various dash currents identical with lightning arrester, therefore should judge first the mounting means confirmed test object of test product and supporting lightning arrester, then apparently sound test product is optionally carried out mechanical robustness testing, leakage test or cover insulation resistance test or tolerable temperature cyclic test, then the test product by above examination is carried out dash current resistance test and the tolerance of little power current, ensuing test should embody release unit can be in time when (the power frequency fault current occurring) at supporting surge arrester failure, accurately, action message, release unit should have good ampere-time characteristic, carry out the acting characteristic test therefore tackle at last release unit, after above-mentioned series of experiments project is finished, could estimate off-test to the type release unit performance.
Realize the foregoing invention purpose, the concrete steps of method of testing of the present invention are as follows successively:
The various test methods of the following stated are correspondingly carried out according to standard GB11032-2000 " alternating current gapless metal oxide arrester ", JB/T8952-2005 " AC system composite jacket gaspless metal oxide arrester " and DL/T864-2004 " nominal voltage be higher than 1000V exchange overhead transmission line use guide rule with composite insulator ", each test product satisfies national standard and requires then to enter next step by test, otherwise judge that test product is all defective by the gross, test finishes;
Step 1: prepare test, judge the mounting means of test product and supporting usefulness lightning arrester, if integral type then test product should be with and supportingly finish together all pilot projects with lightning arrester, if accessories type, then test product can be finished separately all pilot projects, prepares 15 test product numberings and is followed successively by T1～T15;
Step 2: check test product T1～T15 outward appearance, should be intact, otherwise off-test;
Step 3: the test product T1～T5 by above two steps is done mechanical robustness testing: install and normal user demand for satisfying, release unit should be able to by axial 500N tension and normal direction 30Nm antitorque two aspects test, satisfy national standard and require then to enter step 4 test routine continuation examination;
Step 4: the test product T1～T5 by above three steps is done leakage test: test product is put into boiling water boiling 42h, satisfy national standard and require then to enter step 7;
Step 5: the test product T6～T10 by step 1 and step 2 is done the cover insulation resistance test: the cover insulation withstand voltage of release unit should greater than the internal clearance sparking voltage, satisfy national standard and require then to enter step 7;
Step 6: the test product T11～T15 by step 1 and step 2 is made the tolerable temperature cyclic test: examination sun direct projection and release unit overcoat tolerance performance under the environmental difference throughout the year, satisfy the national standard requirement and then enter step 7;
Step 7: to do the test of dash current resistance characteristics by step 4, five, test product T1～T15 of six: release unit should require identical with its matching used lightning arrester of institute, comprise tolerance 4/10us great current impact test, the test of 2ms rectangular impulse current and operating duty cycle test, test product all should reliably be failure to actuate, otherwise off-test;
Step 8: the test product T1～T15 by step 7 is done little power current resistance test; Such as power current effective value 20mA/2h resistance test, otherwise off-test;
Step 9: the test product T1～T15 by step 8 is done the acting characteristic test, and draw the ampere-second curve: the data of ampere-time characteristic curve should different symmetrical initial current levels be drawn by 3 of the test product of flowing through; Centering point effectively earthed system electric current is 20A, 200A and 800A power current effective value ± 10%, and the electric current of centering point non-effectively earthed system is 100mA, 1A and 20A power current effective value ± 10%; To in three kinds of current values each, should test at least five test products;
Step 10: the performance of estimating above test product: if test according to above nine steps, test product can provide the effectively permanent obvious proof that breaks away from, then the test product performance is qualified, if the proof that test product can not be clear and definite, then should measure the electric current that flows through test product when test product applied 1.2 times/1min power-frequency voltage with the maximum rated voltage of the supporting lightning arrester of test product, if this electric current is no more than the 1mA effective value, prove equally that then the test product performance is qualified, simultaneously, off-test.
The invention has the beneficial effects as follows; the supporting performance test way with release unit of perfect lightning arrester; remedied existing standard supporting with the deficiency on the release unit performance test methods at lightning arrester; sound lightning arrester is supporting to have very strong directive function with the release unit testing standard to setting up, thereby has played the effect that well escorts to improving supporting lightning arrester, protection of arrester equipment and Operation of Electric Systems reliability.
Description of drawings
Fig. 1 is that lightning arrester is supporting with release unit method of testing process flow diagram;
Fig. 2 is one of supporting structural representation of using heat-explosion type disconnector of lightning arrester;
Fig. 3 is two of the supporting structural representation with heat-explosion type disconnector of lightning arrester
Fig. 4 is one of supporting structural representation of using the hot melten type disconnector of lightning arrester;
Fig. 5 is two of the supporting structural representation with the hot melten type disconnector of lightning arrester.
Among the figure: the 1-resistors in parallel; The 2-discharging gap; 3-thermal explosion pipe; The 21-resistor disc; The 22-discharging gap; 23-low-melting alloy pad; The 24-preloading spring.
Embodiment
Be the supporting structural representation with two kinds of release units of lightning arrester of the present invention such as Fig. 2 to Fig. 5.
The supporting release unit method of testing embodiment that uses of lightning arrester of the present invention is shown in the process flow diagram of Fig. 1, and the concrete steps of method of testing are as follows successively:
The various test methods of the following stated are carried out according to standard GB/T 11032-2000 " alternating current gapless metal oxide arrester ", JB/T8952-2005 " AC system composite jacket gaspless metal oxide arrester " and DL/T864-2004 " nominal voltage be higher than 1000V exchange overhead transmission line use guide rule with composite insulator ", each test product satisfies national standard and requires then to enter next step by test, otherwise judge that tentatively test product is all defective by the gross, test finishes;
Step 1: prepare test, judge the mounting means of test product and supporting usefulness lightning arrester, if integral type then test product should be with and supportingly finish together all pilot projects with lightning arrester, if accessories type, then test product can be finished separately all pilot projects, prepares 15 test product numberings and is followed successively by T1～T15;
Step 2: check test product T1～T15 outward appearance, should be intact, otherwise off-test;
Step 3: the test product T1～T5 by above two steps is done mechanical robustness testing: install and normal user demand for satisfying, release unit should be able to be by axial 500N tension and normal direction 30Nm antitorque two aspects test, unless have obvious deformation not satisfy the national standard requirement, otherwise enter step 4;
Step 4: the test product T1～T5 by above three steps is done leakage test: test product is put into boiling water boiling 42h, unless there is obvious leakage not satisfy the national standard requirement, otherwise enter step 7;
Step 5: the test product T6～T10 by step 1 and step 2 is done the cover insulation resistance test.The cover insulation withstand voltage of release unit should be greater than the internal clearance sparking voltage;
Step 6: the test product T11～T15 by step 1 and step 2 is made the tolerable temperature cyclic test: examination sun direct projection and throughout the year under the environmental difference release unit overcoat tolerate performance;
Step 7: to do the test of dash current resistance characteristics by step 4, five, test product T1～T15 of six: release unit should require identical with its matching used lightning arrester of institute, comprise tolerance 4/10us great current impact test, the test of 2ms rectangular impulse current and operating duty cycle test, test product all should reliably be failure to actuate, otherwise off-test;
Step 8: the test product T1～T15 by step 7 is done little power current resistance test.Such as power current effective value 20mA/2h resistance test, otherwise off-test;
Step 9: the test product by step 8 is numbered T1～T15 does the acting characteristic test, and draw the ampere-second curve: the data of ampere-time characteristic curve should different symmetrical initial current levels be drawn by 3 of the test product of flowing through; Centering point effectively earthed system electric current is 20A, 200A and 800A power current effective value ± 10%, and the electric current of centering point non-effectively earthed system is 100mA, 1A and 20A power current effective value ± 10%; To in three kinds of current values each, should test at least five test products;
Step 10: the performance of estimating above test product: if test according to above nine steps, test product can provide the effectively permanent obvious proof that breaks away from, then the test product performance is qualified, if the proof that test product can not be clear and definite, then should measure the electric current that flows through test product when test product applied 1.2 times/1min power-frequency voltage with the maximum rated voltage of the supporting lightning arrester of test product, if this electric current is no more than the 1mA effective value, prove equally that then the test product performance is qualified, simultaneously, off-test.
The present invention compares existing release unit code test requirement and test method, mechanical test, leakage test, cover insulation resistance test, tolerable temperature cyclic test and the requirement of little power current resistance test have been increased, whole process of the test is divided into ten steps, perfect release unit performance evaluation way, only have when same group of release unit test product require just can be evaluated as by above test procedure simultaneously qualified.
In addition, stipulated the sequencing of release unit test product test, carried out first the release unit Performance Assessment test of reliably being failure to actuate, after carry out the test of release unit action message Performance Assessment, the result has vital impact on the test product Performance Assessment.
Claims (1)
1. the supporting method of testing with release unit of a lightning arrester comprises following steps successively:
The various test methods of the following stated are all undertaken by corresponding national standard, and each test product satisfies national standard and requires then to enter next step by test, otherwise judges that test product is all defective by the gross, and test finishes;
Step 1: prepare test, judge the mounting means of test product and supporting usefulness lightning arrester, if integral type then test product should be with and supportingly finish together all pilot projects with lightning arrester, if accessories type, then test product can be finished separately all pilot projects, prepares 15 test products, and numbering is followed successively by T1 ~ T15;
Step 2: check test product T1 ~ T15 outward appearance, should be intact, otherwise off-test;
Step 3: the test product T1 ~ T5 by above two steps is done mechanical robustness testing: install and normal user demand for satisfying, release unit should be able to be by axial 500N tension and normal direction 30Nm antitorque two aspects test;
Step 4: the test product T1 ~ T5 by step 3 is done leakage test: test product is put into boiling water boiling 42h, satisfy national standard and require then to enter step 7;
Step 5: the test product T6 ~ T10 by step 1 and step 2 is done the cover insulation resistance test: the cover insulation withstand voltage of release unit should greater than the internal clearance sparking voltage, satisfy national standard and require then to enter step 7;
Step 6: the test product T11 ~ T15 by step 1 and step 2 is made the tolerable temperature cyclic test: examination sun direct projection and release unit overcoat tolerance performance under the environmental difference throughout the year, satisfy the national standard requirement and then enter step 7;
Step 7: to do the test of dash current resistance characteristics by step 4, five, test product T1 ~ T15 of six: release unit should require identical with its matching used lightning arrester of institute, comprise tolerance 4/10us great current impact test, the test of 2ms rectangular impulse current and operating duty cycle test, test product all should reliably be failure to actuate, otherwise off-test;
Step 8: the test product T1 ~ T15 by step 7 is done little power current resistance test;
Step 9: the test product T1 ~ T15 by step 8 is done acting characteristic test, and draw the ampere-second curve: ampere-second the data of curve should different symmetrical initial current levels be drawn by 3 of the test product of flowing through; Centering point effectively earthed system electric current is 20A, 200A and 800A power current effective value ± 10%, and the electric current of centering point non-effectively earthed system is 100mA, 1A and 20A power current effective value ± 10%; To in three kinds of current values each, should test at least five test products;
Step 10: the performance of estimating above test product: if test according to above nine steps, test product can provide the effectively permanent obvious proof that breaks away from, then the test product performance is qualified, if the proof that test product can not be clear and definite, then should measure the electric current that flows through test product when test product applied 1.2 times/1min power-frequency voltage with the maximum rated voltage of the supporting lightning arrester of test product, if this electric current is no more than the 1mA effective value, prove equally that then the test product performance is qualified, simultaneously, off-test.
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| CN107356867B (en) * | 2017-07-14 | 2019-12-13 | 武汉市合众电气设备制造有限公司 | Ampere-second characteristic test system for lightning arrester disconnector |
| CN109061404B (en) * | 2018-06-25 | 2021-09-03 | 国网湖南省电力有限公司 | Method for testing surface ablation of discharge tube of inner gap lightning arrester |
| CN111812458B (en) * | 2020-05-21 | 2021-11-16 | 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 | Method for testing temporary overvoltage limit tolerance characteristic of lightning arrester of direct current transfer switch |
| CN113960395A (en) * | 2021-10-19 | 2022-01-21 | 广东电网有限责任公司 | Method and device for evaluating temperature tolerance of valve plate of lightning arrester |
Citations (5)
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| JP2007173029A (en) * | 2005-12-22 | 2007-07-05 | Hitachi Plant Technologies Ltd | Test method and test device for relay |
| CN200950428Y (en) * | 2006-09-25 | 2007-09-19 | 深圳市银星电力电子有限公司 | Novel frequency division shunting separator |
| CN201084649Y (en) * | 2007-11-19 | 2008-07-09 | 何排枝 | A disengaging device used on arrester |
| CN101294999A (en) * | 2008-06-06 | 2008-10-29 | 中国电力科学研究院 | AC/DC arrester team-work tester |
| JP2009115687A (en) * | 2007-11-08 | 2009-05-28 | Toshiba Corp | Device and method for pressure relief testing of lightning arrester |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007173029A (en) * | 2005-12-22 | 2007-07-05 | Hitachi Plant Technologies Ltd | Test method and test device for relay |
| CN200950428Y (en) * | 2006-09-25 | 2007-09-19 | 深圳市银星电力电子有限公司 | Novel frequency division shunting separator |
| JP2009115687A (en) * | 2007-11-08 | 2009-05-28 | Toshiba Corp | Device and method for pressure relief testing of lightning arrester |
| CN201084649Y (en) * | 2007-11-19 | 2008-07-09 | 何排枝 | A disengaging device used on arrester |
| CN101294999A (en) * | 2008-06-06 | 2008-10-29 | 中国电力科学研究院 | AC/DC arrester team-work tester |
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Address after: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Patentee after: Electric Power Research Institute of Guangdong Power Grid Co.,Ltd. Address before: 510080 Guangdong city of Guangzhou Province Dongfeng East Road, No. 8 Guangdong water Kong EPRI high pressure Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Corp. |