CN201707419U - Coil turn-to-turn insulation detector - Google Patents
Coil turn-to-turn insulation detector Download PDFInfo
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- CN201707419U CN201707419U CN2010202069634U CN201020206963U CN201707419U CN 201707419 U CN201707419 U CN 201707419U CN 2010202069634 U CN2010202069634 U CN 2010202069634U CN 201020206963 U CN201020206963 U CN 201020206963U CN 201707419 U CN201707419 U CN 201707419U
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Abstract
The utility model relates to a coil turn-to-turn insulation detector, which is characterized by comprising a high-voltage power supply circuit, an oscillating circuit, a signal sampling device and a processor. The high-voltage power supply circuit is connected with the oscillating circuit, the oscillating circuit is connected with a tested part, an output end of the oscillating circuit is connected with the signal sampling device, an output terminal of the signal sampling device is connected with the processor, an output end of the processor is connected with a display device, and the processor is provided with a signal processing module, a corona extracting module and a corona quantity comparison module. The coil turn-to-turn insulation detector has the advantages of capability of realizing turn-to-turn insulation detection for circuits to be detected, and having more accurate and reliable detection results.
Description
Technical field
The utility model relates to a kind of insulation detection device, particularly a kind of device that is used for the turn-to-turn insulation situation of magnetic test coil.
Background technology
In current technology, coil pick-up unit commonly used can only be by relatively carrying out rough detection to test waveform between coil, in test process, the detection method of the corona amount (being the turn-to-turn discharge) that produces owing to reasons such as the breakage of coil covering or turn-to-turn short circuits is not quite reasonable, utilizes integration is carried out in the zone that samples waveform to sue for peace and calculate.Because the difference of integral domain, thereby directly cause the result of calculation difference of corona amount.Thereby can accurately not weigh the corona amount that same loop product is produced under identical test condition, cause different manufacturers inconsistent, cause the difference of testing result the detection method of corona.
Summary of the invention
The purpose of this utility model is can not accurately weigh the corona amount problem that same coil produces at insulation detection device between the existing coil turn described in the background technology under identical test condition, and insulation detection device between a kind of coil turn is provided.
The realization the technical solution of the utility model is as follows:
Insulation detection device between a kind of coil turn, it comprises high-voltage power supply circuit, oscillation circuit, signal sampling device and processor, described high-voltage power supply circuit is connected with oscillation circuit, oscillation circuit is connected with measured piece, the output terminal of oscillation circuit connects signal sampling device, the output terminal connection processing device of signal sampling device, the output terminal of processor connects display device, is provided with signal processing module, corona abstraction module and corona amount comparison module in the described processor.
Described high-voltage power supply circuit comprises high pressure generator, storage capacitor, high voltage pulse switch, absorption circuit and high-voltage rectifier, described storage capacitor is parallel to the high pressure generator two ends, one end of storage capacitor connects high voltage pulse switch, absorption circuit in parallel between the other end of high voltage pulse switch and the storage capacitor, absorption circuit is connected with high-voltage rectifier.
Described oscillation circuit comprises oscillating capacitance, first resistance and second resistance, connect between first resistance and second resistance, in parallel with oscillating capacitance then, the middle extension line of first resistance and second resistance is connected with signal sampling device, and measured piece is parallel to the oscillating capacitance two ends.
The beneficial effects of the utility model are because the high pressure that insulation detection device produces by high-pressure generating circuit between coil turn of the present utility model, be applied on the storage capacitor C1, when test, by high-voltage switch gear the energy on the storage capacitor is transferred on the oscillating capacitance C2, high voltage pulse switch disconnects then, oscillating capacitance C2 and measured piece L1 and resistance R 1 and R2 have constituted a damped oscillation loop like this, by signal sample circuit the waveform of damped oscillation is sampled, by the signal processing module of processor the signal that samples is handled then, analysis meter is calculated standard signal, by corona abstraction module extraction corona amount wherein, the corona amount and the canonical parameter that are drawn into are compared, and then judge by the quality of the insulating property of test coil.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model;
Fig. 2 .1 is normal waveform;
Fig. 2 .2 is the waveform with corona discharge;
The corona amount waveform of Fig. 2 .3 for extracting;
1 is high pressure generator among the figure, and 2 is storage capacitor, and 3 is high voltage pulse switch, and 4 is absorption circuit, and 5 is high-voltage rectifying, and 6 is first resistance, and 7 is second resistance, and 8 is oscillating capacitance, and 9 is measured piece, and 10 is signal sampling device, and 11 is processor, and 12 is display device.
Embodiment
Detect with reference to a kind of coil turn-to-turn insulation shown in the accompanying drawing 1, it mainly comprises high-voltage power supply circuit, oscillation circuit, signal sampling device 10 and processor 11, high-voltage power supply circuit comprises high pressure generator 1, storage capacitor 2, high voltage pulse switch 3, absorption circuit 4 and high-voltage rectifier 5, described storage capacitor 2 is parallel to high pressure generator 1 two ends, one end of storage capacitor 2 connects high voltage pulse switch 3, absorption circuit 4 in parallel between the other end of high voltage pulse switch 3 and the storage capacitor 2, absorption circuit 4 is connected with high-voltage rectifier 5.Described oscillation circuit comprises oscillating capacitance 8, first resistance 6 and second resistance 7, series connection between first resistance 6 and second resistance 7, in parallel with oscillating capacitance 8 then, the middle extension line of first resistance 6 and second resistance 7 is connected with signal sampling device 10, and measured piece 9 is parallel to oscillating capacitance 8 two ends.Oscillation circuit is a damped oscillation, its waveform is the damping waveform, as Fig. 2 .1, shown in Fig. 2 .2 and Fig. 2 .3, if there are electric discharge phenomena between coil turn, then have the part burr in the waveform, can judge the quality of coil insulation degree according to the factors such as amplitude of what and burr of burr, the corona amount detecting device all is to set an integral domain between existing coil turn, calculate the area of waveform with burr by the mode of integration, area with the damping waveform of standard compares then, judge the quality of coil insulation performance by the area extent, this detection mode is because the difference of integral domain, can there be bigger difference in the possibility of result that obtains, and therefore, testing result is inaccurate.After damping waveform of the present utility model is sampled through signal sampling device 10, be transferred to processor 11, by the signal processing module of processor 11 signal that samples is handled then, analysis meter is calculated standard signal, by corona abstraction module extraction corona amount wherein, the corona amount and the canonical parameter that are drawn into are compared, and then judge by the quality of the insulating property of test coil, at last result is shown by LCD display device 12, make the user can know testing result intuitively.
Claims (3)
1. insulation detection device between a coil turn, it is characterized in that: it comprises high-voltage power supply circuit, oscillation circuit, signal sampling device and processor, described high-voltage power supply circuit is connected with oscillation circuit, oscillation circuit is connected with measured piece, the output terminal of oscillation circuit connects signal sampling device, the output terminal connection processing device of signal sampling device, the output terminal of processor connects display device, is provided with signal processing module, corona abstraction module and corona amount comparison module in the described processor.
2. insulation detection device between coil turn according to claim 1, it is characterized in that: described high-voltage power supply circuit comprises high pressure generator, storage capacitor, high voltage pulse switch, absorption circuit and high-voltage rectifier, described storage capacitor is parallel to the high pressure generator two ends, one end of storage capacitor connects high voltage pulse switch, absorption circuit in parallel between the other end of high voltage pulse switch and the storage capacitor, absorption circuit is connected with high-voltage rectifier.
3. insulation detection device between coil turn according to claim 1, it is characterized in that: described oscillation circuit comprises oscillating capacitance, first resistance and second resistance, connect between first resistance and second resistance, in parallel with oscillating capacitance then, the middle extension line of first resistance and second resistance is connected with signal sampling device, and measured piece is parallel to the oscillating capacitance two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202069634U CN201707419U (en) | 2010-05-28 | 2010-05-28 | Coil turn-to-turn insulation detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202069634U CN201707419U (en) | 2010-05-28 | 2010-05-28 | Coil turn-to-turn insulation detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201707419U true CN201707419U (en) | 2011-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202069634U Expired - Fee Related CN201707419U (en) | 2010-05-28 | 2010-05-28 | Coil turn-to-turn insulation detector |
Country Status (1)
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| CN (1) | CN201707419U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520311A (en) * | 2012-01-10 | 2012-06-27 | 广东电网公司电力科学研究院 | Method for locating turn-to-turn insulation defects of dry type air-core reactor |
| CN102590699A (en) * | 2012-01-10 | 2012-07-18 | 广东电网公司电力科学研究院 | Method for positioning inter-turn insulation defect of dry hollow reactor |
| CN103558537A (en) * | 2013-11-01 | 2014-02-05 | 国家电网公司 | Circuit for testing overload tolerance capacity of series capacitor and working method of circuit |
| CN105137219A (en) * | 2015-07-17 | 2015-12-09 | 无锡晶磊电子有限公司 | Test method for detecting multi-turn coils by means of pulse |
| CN106291286A (en) * | 2016-08-30 | 2017-01-04 | 江苏惠中电气有限公司 | Coil turn-to-turn corona tester |
| CN107202920A (en) * | 2016-03-16 | 2017-09-26 | 致茂电子股份有限公司 | Detection device and detection method for winding element |
| CN109031056A (en) * | 2018-06-06 | 2018-12-18 | 国网江西省电力有限公司吉安供电分公司 | A kind of Current Transformer Secondary coil turn testing insulation between plates device and method |
| CN107202920B (en) * | 2016-03-16 | 2019-07-16 | 致茂电子股份有限公司 | Detection device and detection method for winding element |
| CN117192443A (en) * | 2023-11-03 | 2023-12-08 | 常州同惠电子股份有限公司 | Test method and test system for turn-to-turn tester |
-
2010
- 2010-05-28 CN CN2010202069634U patent/CN201707419U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520311A (en) * | 2012-01-10 | 2012-06-27 | 广东电网公司电力科学研究院 | Method for locating turn-to-turn insulation defects of dry type air-core reactor |
| CN102590699A (en) * | 2012-01-10 | 2012-07-18 | 广东电网公司电力科学研究院 | Method for positioning inter-turn insulation defect of dry hollow reactor |
| CN102590699B (en) * | 2012-01-10 | 2014-05-28 | 广东电网公司电力科学研究院 | Method for positioning inter-turn insulation defect of dry hollow reactor |
| CN103558537A (en) * | 2013-11-01 | 2014-02-05 | 国家电网公司 | Circuit for testing overload tolerance capacity of series capacitor and working method of circuit |
| CN103558537B (en) * | 2013-11-01 | 2015-12-30 | 国家电网公司 | The circuit of test series capacitor tolerance capability of overload and method of work thereof |
| CN105137219A (en) * | 2015-07-17 | 2015-12-09 | 无锡晶磊电子有限公司 | Test method for detecting multi-turn coils by means of pulse |
| CN107202920A (en) * | 2016-03-16 | 2017-09-26 | 致茂电子股份有限公司 | Detection device and detection method for winding element |
| CN107202920B (en) * | 2016-03-16 | 2019-07-16 | 致茂电子股份有限公司 | Detection device and detection method for winding element |
| CN106291286A (en) * | 2016-08-30 | 2017-01-04 | 江苏惠中电气有限公司 | Coil turn-to-turn corona tester |
| CN109031056A (en) * | 2018-06-06 | 2018-12-18 | 国网江西省电力有限公司吉安供电分公司 | A kind of Current Transformer Secondary coil turn testing insulation between plates device and method |
| CN117192443A (en) * | 2023-11-03 | 2023-12-08 | 常州同惠电子股份有限公司 | Test method and test system for turn-to-turn tester |
| CN117192443B (en) * | 2023-11-03 | 2024-02-09 | 常州同惠电子股份有限公司 | Test method and test system for turn-to-turn tester |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHANGZHOU TAIYU INFORMATION TECHNOLOGY CO., LTD. Free format text: FORMER NAME: CHANGZHOU TONGHUI ELECTRONICS CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 213022 No. 3 Tianshan Road, Xinbei District, Jiangsu, Changzhou Patentee after: CHANGZHOU TONGHUI ELECTRONICS CO., LTD. Address before: 213022 No. 3 Tianshan Road, Xinbei District, Jiangsu, Changzhou Patentee before: Changzhou Tonghui Electronics Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20160528 |