CN103308826A - Integrated alternating current withstand voltage testing device - Google Patents
Integrated alternating current withstand voltage testing device Download PDFInfo
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- CN103308826A CN103308826A CN2012100733817A CN201210073381A CN103308826A CN 103308826 A CN103308826 A CN 103308826A CN 2012100733817 A CN2012100733817 A CN 2012100733817A CN 201210073381 A CN201210073381 A CN 201210073381A CN 103308826 A CN103308826 A CN 103308826A
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- alternating current
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- voltage
- current withstand
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Abstract
The invention relates to an integrated alternating current withstand voltage testing device. The integrated alternating current withstand voltage testing device is characterized by mainly consisting of a resonant reactor and a capacitive voltage divider, which are connected in parallel. A variable frequency power supply and an excitation transformer are also arranged at the power end of the device. A three-phase alternating current power supply provides testing voltage for a resonant circuit through the variable frequency power supply and the excitation transformer. Higher testing voltage is provided for a tested object according to the characteristic of the resonant circuit to meet the alternating current withstand voltage testing requirements of tested equipment. The invention has the advantages that the integrated alternating current withstand voltage testing device is simple in structure, light in weight and convenient to carry; and the operation of hoisting, assembly, solid encapsulation and the like on a working site are not required, so that the labor force and mechanical equipment are saved, the working time is also shortened, and the working efficiency is improved.
Description
Technical field
The present invention relates to a kind of ac voltage withstanding electrical equipment, particularly a kind of integral type AC voltage withstand test device.
Background technology
At present, power system transformer substation GIS kind equipment is used more and more wider model, the AC voltage withstand test device of this kind equipment then exists following deficiency: the one, because of GIS kind equipment ac voltage withstanding value than higher, generally be to use resonance to obtain high voltage, and be used for producing the common volume heaviness of resonance reactor of trial voltage, the voltage divider volume that is used for measuring trial voltage simultaneously is also bigger, and separates with reactor.Before test, need to lift respectively, sealing; When using the lower resonance reactor of rated voltage to test, need several joints to assemble and to satisfy testing requirements, thereby will cooperate to finish on-the-spot assembling with crane, lorry; In addition, resonance is generally two equipment that separate with reactor and voltage divider, generally need carry out the position adjustment again in the testing ground, and then carries out the test connection between them.Because above deficiency, make that the work efficiency of AC voltage withstand test of GIS kind equipment is low, all corresponding increases of workload, working time, working strength and security risk of testing crew simultaneously.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of simple in structure, on-the-spot integral type AC voltage withstand test device convenient to use.
The object of the present invention is achieved like this: a kind of integral type AC voltage withstand test device is characterized in that it mainly is connected in parallel by resonance reactor and capacitive divider to constitute.
Described a kind of integral type AC voltage withstand test device, its power end also is provided with variable-frequency power sources and exciting transformer.
Three-phase alternating-current supply is connected to the exciting transformer low-pressure side by variable-frequency power sources, and as the power supply of whole resonant circuit, the high-pressure side by exciting transformer provides trial voltage for resonant tank.Resonant tank is the approximate appearance sense resonant circuit that is formed jointly by the inductance value of resonance reactor and capacitive divider, test specimen electric capacity over the ground, characteristic by resonant circuit satisfies the demand of tested device AC voltage withstand test for test specimen provides a higher trial voltage.
The invention has the advantages that integral type AC voltage withstand test apparatus structure is simple, and is in light weight, easy to carry, do not need to lift at operation field, assemble, consolidate operations such as envelope, both saved manpower, plant equipment, also shorten the activity duration, improved work efficiency.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
As shown in Figure 1, the present invention provides experiment power supply by three-phase alternating-current supply 1, three-phase alternating-current supply and variable-frequency power sources 2 are connected by power lead, the experiment power supply that variable-frequency power sources provides three-phase alternating-current supply is converted to the single phase poaer supply of optional frequency in the 20-300Hz, by connecting the low-pressure side that lead offers exciting transformer 3, the anti-high-tension electricity that goes out offers by resonance reactor 4 from the exciting transformer high-pressure side, the common resonant tank that forms of the ground capacitance of voltage divider 5 and test specimen 6, by the resonance of reactance and electric capacity, the trial voltage that provides AC voltage withstand test to use for test specimen.
Three-phase alternating-current supply is 380V, the power supply of 50Hz.
Variable-frequency power sources can be converted to the three-phase alternating-current supply of 50Hz the single phase poaer supply of optional frequency in the 20-300Hz, and voltage output range is 0-350V usually, and continuous working test is not less than 60min.
Exciting transformer is the single transformer of two spirals, and the low-pressure side input voltage is generally 0-350V, and the high-pressure side output voltage is generally 0-20kV.
The resonance reactor rated voltage is 400kV, and rated current 1.5A, inductance value 1400H ± 3%, stream time were not less than 15 minutes, and dielectric level satisfies 440kV/1min, and the Q value is not less than 40 times.
The capacitive divider rated voltage is 400kV, and electric capacity 1000pF (high-pressure side), stream time were not less than 15 minutes, and dielectric level satisfies 440kV/1min, and no-load voltage ratio is 1000 times.
Reactor integral body is a joint, is fixed as one with pressure-equalizing device with the voltage divider upper end, and the bottom is fixed as one with the insulator foot of anti-vibration
Claims (2)
1. integral type AC voltage withstand test device is characterized in that it mainly is connected in parallel by resonance reactor and capacitive divider to constitute.
2. integral type AC voltage withstand test device according to claim 1 is characterized in that its power end also is provided with variable-frequency power sources and exciting transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100733817A CN103308826A (en) | 2012-03-15 | 2012-03-15 | Integrated alternating current withstand voltage testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100733817A CN103308826A (en) | 2012-03-15 | 2012-03-15 | Integrated alternating current withstand voltage testing device |
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| CN103308826A true CN103308826A (en) | 2013-09-18 |
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| CN2012100733817A Pending CN103308826A (en) | 2012-03-15 | 2012-03-15 | Integrated alternating current withstand voltage testing device |
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| CN (1) | CN103308826A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558573A (en) * | 2013-11-14 | 2014-02-05 | 中国三冶集团有限公司电气安装工程公司 | Performance testing method for voltage transformer |
| CN103675624A (en) * | 2013-12-13 | 2014-03-26 | 中国西电电气股份有限公司 | Power-frequency voltage testing device and testing method of lightning arrester |
| CN104820172A (en) * | 2015-04-16 | 2015-08-05 | 广东电网有限责任公司电力科学研究院 | Three-phase transformer impulse withstand voltage test method |
| CN104880649A (en) * | 2015-05-19 | 2015-09-02 | 苏州市华安普电力工程有限公司 | Alternating current withstand voltage test apparatus |
| CN105067965A (en) * | 2015-01-26 | 2015-11-18 | 深圳市华中行科技有限公司 | High voltage resistant tester |
| CN107783014A (en) * | 2016-08-31 | 2018-03-09 | 中国石油化工股份有限公司 | A kind of series resonance pressure resistant testing device based on polyphase source |
| CN111220886A (en) * | 2019-11-29 | 2020-06-02 | 山东送变电工程有限公司 | Novel assembled series resonance alternating current voltage withstand equipment |
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| JP2005241297A (en) * | 2004-02-24 | 2005-09-08 | J-Power Systems Corp | Withstand voltage test method of power equipment |
| CN1719268A (en) * | 2005-08-04 | 2006-01-11 | 上海思源电气股份有限公司 | No partial discharge frequency conversion resonance experiment system |
| CN201075831Y (en) * | 2007-07-20 | 2008-06-18 | 武汉磐电科技有限公司 | Alternating current and overpressure resistant resonance step-up apparatus for generator |
| CN201540348U (en) * | 2009-12-07 | 2010-08-04 | 苏州市华电电气技术有限公司 | Portable alternating-current withstand voltage testing device of high-voltage electric device |
| CN202119866U (en) * | 2011-05-25 | 2012-01-18 | 黑龙江省安装工程公司 | Variable-frequency series resonance voltage withstanding test device |
| CN202471899U (en) * | 2012-03-15 | 2012-10-03 | 辽宁省电力有限公司大连供电公司 | Integral alternating-current withstand voltage test device |
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2012
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005241297A (en) * | 2004-02-24 | 2005-09-08 | J-Power Systems Corp | Withstand voltage test method of power equipment |
| CN1719268A (en) * | 2005-08-04 | 2006-01-11 | 上海思源电气股份有限公司 | No partial discharge frequency conversion resonance experiment system |
| CN201075831Y (en) * | 2007-07-20 | 2008-06-18 | 武汉磐电科技有限公司 | Alternating current and overpressure resistant resonance step-up apparatus for generator |
| CN201540348U (en) * | 2009-12-07 | 2010-08-04 | 苏州市华电电气技术有限公司 | Portable alternating-current withstand voltage testing device of high-voltage electric device |
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| CN202471899U (en) * | 2012-03-15 | 2012-10-03 | 辽宁省电力有限公司大连供电公司 | Integral alternating-current withstand voltage test device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558573A (en) * | 2013-11-14 | 2014-02-05 | 中国三冶集团有限公司电气安装工程公司 | Performance testing method for voltage transformer |
| CN103558573B (en) * | 2013-11-14 | 2016-01-20 | 中国三冶集团有限公司 | A kind of performance test methods of voltage transformer (VT) |
| CN103675624A (en) * | 2013-12-13 | 2014-03-26 | 中国西电电气股份有限公司 | Power-frequency voltage testing device and testing method of lightning arrester |
| CN103675624B (en) * | 2013-12-13 | 2016-07-06 | 中国西电电气股份有限公司 | A kind of spark gap working-frequency voltage test device and test method |
| CN105067965A (en) * | 2015-01-26 | 2015-11-18 | 深圳市华中行科技有限公司 | High voltage resistant tester |
| CN104820172A (en) * | 2015-04-16 | 2015-08-05 | 广东电网有限责任公司电力科学研究院 | Three-phase transformer impulse withstand voltage test method |
| CN104880649A (en) * | 2015-05-19 | 2015-09-02 | 苏州市华安普电力工程有限公司 | Alternating current withstand voltage test apparatus |
| CN107783014A (en) * | 2016-08-31 | 2018-03-09 | 中国石油化工股份有限公司 | A kind of series resonance pressure resistant testing device based on polyphase source |
| CN111220886A (en) * | 2019-11-29 | 2020-06-02 | 山东送变电工程有限公司 | Novel assembled series resonance alternating current voltage withstand equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 116001 No. 102, Zhongshan, Dalian District, Liaoning, Zhongshan Road Applicant after: Dalian Power Supply Company, State Grid Liaoning Electric Power Co., Ltd. Applicant after: State Grid Corporation of China Address before: 116001 No. 102, Zhongshan, Dalian District, Liaoning, Zhongshan Road Applicant before: Dalian Power Supply Company of Liaoning Electric Power Co., Ltd. Applicant before: State Grid Corporation of China |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: DALIAN POWER SUPPLY COMPANY OF LIAONING ELECTRIC POWER CO., LTD. TO: DALIAN POWER SUPPLY COMPANY, STATE GRID LIAONING ELECTRIC POWER CO., LTD. |
|
| 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: 20130918 |