CN202471899U - Integral alternating-current withstand voltage test device - Google Patents
Integral alternating-current withstand voltage test device Download PDFInfo
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- CN202471899U CN202471899U CN 201220104418 CN201220104418U CN202471899U CN 202471899 U CN202471899 U CN 202471899U CN 201220104418 CN201220104418 CN 201220104418 CN 201220104418 U CN201220104418 U CN 201220104418U CN 202471899 U CN202471899 U CN 202471899U
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- withstand voltage
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- 238000012360 testing method Methods 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000004904 shortening Methods 0.000 abstract 1
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- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model relates to an integral alternating-current withstand voltage test device. The integral alternating-current withstand voltage test device is characterized by mainly comprising a resonant reactor and a capacitive divider which are connected in parallel. A power end of the test device is also provided with a variable-frequency power supply and an exciting transformer; and a three-phase alternating-current power supply provides a test voltage to a resonant loop through the variable-frequency power supply and the exciting transformer and can supply a higher test voltage to a tested object by virtue of the characteristics of a resonant circuit, thus meeting the requirements of an alternating-current withstand voltage test of the tested object. The integral alternating-current withstand voltage test device has the advantages of being simple in structure, light in weight and convenient to carry, and being free from operations such as hoisting, assembling, sealing and the like on an operation site, thus saving manpower and mechanical equipment, shortening operation time, and improving work efficiency.
Description
Technical field
The utility model 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 it is heavy to be used for producing the common volume of resonance reactor of trial voltage; It is also bigger to be used for the voltage divider volume of experiment with measuring voltage simultaneously, and separates with reactor.Before test, need lifting, sealing respectively; When using the lower resonance reactor of rated voltage to make an experiment, need several joints to assemble and to satisfy testing requirements, thereby will cooperate with crane, lorry and accomplish assembled on site; In addition, resonance is generally two equipment that separate with reactor and voltage divider, generally need carry out the position adjustment in the testing ground again, and then carry 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 increase of workload, working time, working strength and security risk of testing crew simultaneously.
Summary of the invention
The purpose of the utility model is to overcome the deficiency of prior art, provides a kind of simple in structure, on-the-spot integral type AC voltage withstand test device convenient to use.
The purpose of the utility model is achieved in that a kind of integral type AC voltage withstand test device, it 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 through variable-frequency power sources, and as the power supply of whole resonant circuit, the high-pressure side through exciting transformer is that resonant tank provides trial voltage.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 through resonant circuit is that test specimen provides a higher trial voltage, satisfies the demand of tested device AC voltage withstand test.
The advantage of the utility model is that integral type AC voltage withstand test apparatus structure is simple, and is in light weight; Easy to carry, do not need to lift, assemble, consolidate operations such as envelope at operation field, both saved manpower, plant equipment; Also shorten the activity duration, improved work efficiency.
Description of drawings
Fig. 1 is the circuit theory diagrams of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As shown in Figure 1; The utility model provides experiment power supply by three-phase alternating-current supply 1; Three-phase alternating-current supply and variable-frequency power sources 2 are connected through power lead; The experiment power supply that variable-frequency power sources provides three-phase alternating-current supply converts the single phase poaer supply of optional frequency in the 20-300Hz into, and through connecting the low-pressure side that lead offers exciting transformer 3, the anti-high-tension electricity that goes out offers the resonant tank that the ground capacitance by resonance reactor 4, voltage divider 5 and test specimen 6 forms jointly from the exciting transformer high-pressure side; Through 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 convert the three-phase alternating-current supply of 50Hz into 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 |
|---|---|---|---|
| CN 201220104418 CN202471899U (en) | 2012-03-15 | 2012-03-15 | Integral alternating-current withstand voltage test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220104418 CN202471899U (en) | 2012-03-15 | 2012-03-15 | Integral alternating-current withstand voltage test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202471899U true CN202471899U (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220104418 Expired - Lifetime CN202471899U (en) | 2012-03-15 | 2012-03-15 | Integral alternating-current withstand voltage test device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202471899U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308826A (en) * | 2012-03-15 | 2013-09-18 | 辽宁省电力有限公司大连供电公司 | Integrated alternating current withstand voltage testing device |
| CN103969499A (en) * | 2013-01-31 | 2014-08-06 | 山东电力集团公司物资供应公司 | Three-phase capacitor voltage division measuring device and method |
| CN104076253A (en) * | 2013-03-29 | 2014-10-01 | 致茂电子(苏州)有限公司 | Electrical performance test device |
| CN104793116A (en) * | 2015-04-29 | 2015-07-22 | 国网辽宁省电力有限公司大连供电公司 | Voltage withstand test device for large-capacity equipment |
| CN105044574A (en) * | 2015-07-24 | 2015-11-11 | 王礼卿 | Power frequency magnetron series resonant high voltage test device and high voltage test method |
-
2012
- 2012-03-15 CN CN 201220104418 patent/CN202471899U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308826A (en) * | 2012-03-15 | 2013-09-18 | 辽宁省电力有限公司大连供电公司 | Integrated alternating current withstand voltage testing device |
| CN103969499A (en) * | 2013-01-31 | 2014-08-06 | 山东电力集团公司物资供应公司 | Three-phase capacitor voltage division measuring device and method |
| CN103969499B (en) * | 2013-01-31 | 2016-08-10 | 山东电力集团公司物资供应公司 | A kind of three phase capacitance partial pressure measuring apparatus and measuring method |
| CN104076253A (en) * | 2013-03-29 | 2014-10-01 | 致茂电子(苏州)有限公司 | Electrical performance test device |
| CN104793116A (en) * | 2015-04-29 | 2015-07-22 | 国网辽宁省电力有限公司大连供电公司 | Voltage withstand test device for large-capacity equipment |
| CN105044574A (en) * | 2015-07-24 | 2015-11-11 | 王礼卿 | Power frequency magnetron series resonant high voltage test device and high voltage test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20121114 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121114 Address after: 116001 No. 102, Zhongshan, Dalian District, Liaoning, Zhongshan Road Patentee after: Dalian Power Supply Company of Liaoning Electric Power Co., Ltd. Patentee after: State Grid Corporation of China Address before: 116001 No. 102, Zhongshan, Dalian District, Liaoning, Zhongshan Road Patentee before: Dalian Power Supply Company of Liaoning Electric Power Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |
|
| CX01 | Expiry of patent term |