CN202041583U - Sweep-frequency measuring device for short-circuit impedance of transformer - Google Patents
Sweep-frequency measuring device for short-circuit impedance of transformer Download PDFInfo
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- CN202041583U CN202041583U CN2011200718767U CN201120071876U CN202041583U CN 202041583 U CN202041583 U CN 202041583U CN 2011200718767 U CN2011200718767 U CN 2011200718767U CN 201120071876 U CN201120071876 U CN 201120071876U CN 202041583 U CN202041583 U CN 202041583U
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- 238000004804 winding Methods 0.000 claims abstract description 44
- 238000012360 testing method Methods 0.000 claims abstract description 34
- 238000005259 measurement Methods 0.000 claims abstract description 27
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- 238000005086 pumping Methods 0.000 claims description 12
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- 238000000034 method Methods 0.000 description 17
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- 238000001514 detection method Methods 0.000 description 3
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- 238000010292 electrical insulation Methods 0.000 description 1
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CN2011200718767U CN202041583U (en) | 2011-03-17 | 2011-03-17 | Sweep-frequency measuring device for short-circuit impedance of transformer |
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CN2011200718767U CN202041583U (en) | 2011-03-17 | 2011-03-17 | Sweep-frequency measuring device for short-circuit impedance of transformer |
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CN202041583U true CN202041583U (en) | 2011-11-16 |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103792462A (en) * | 2014-01-15 | 2014-05-14 | 国家电网公司 | Power transformer winding turn-to-turn short circuit failure detecting method based on resistance frequency curve |
CN105004260A (en) * | 2015-07-02 | 2015-10-28 | 贵阳供电局 | Method for deformation test of transformer winding by utilization of frequency sweep short circuit impedance method |
CN105445553A (en) * | 2015-11-12 | 2016-03-30 | 广东电网有限责任公司电力科学研究院 | Method for precisely acquiring short-circuit impedance value of transformer at 50Hz |
CN110057283A (en) * | 2019-03-11 | 2019-07-26 | 国网江苏省电力有限公司淮安供电分公司 | A kind of deformation of transformer winding intelligent detecting method based on short-circuit reactance |
CN110244127A (en) * | 2019-07-30 | 2019-09-17 | 广东电网有限责任公司 | A kind of the frequency sweep impedance test device and method of transformer |
CN110645888A (en) * | 2019-10-18 | 2020-01-03 | 国网辽宁省电力有限公司抚顺供电公司 | Winding deformation judgment method based on frequency response analysis FRA |
CN111505383A (en) * | 2019-01-31 | 2020-08-07 | 英格索兰工业美国公司 | Device for measuring impedance of load |
CN112180147A (en) * | 2020-09-25 | 2021-01-05 | 加特兰微电子科技(上海)有限公司 | Power amplifier output impedance abnormity detection method, detection device and related device |
-
2011
- 2011-03-17 CN CN2011200718767U patent/CN202041583U/en not_active Expired - Lifetime
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103792462A (en) * | 2014-01-15 | 2014-05-14 | 国家电网公司 | Power transformer winding turn-to-turn short circuit failure detecting method based on resistance frequency curve |
CN103792462B (en) * | 2014-01-15 | 2017-01-18 | 国家电网公司 | Power transformer winding turn-to-turn short circuit failure detecting method based on resistance frequency curve |
CN105004260A (en) * | 2015-07-02 | 2015-10-28 | 贵阳供电局 | Method for deformation test of transformer winding by utilization of frequency sweep short circuit impedance method |
CN105445553A (en) * | 2015-11-12 | 2016-03-30 | 广东电网有限责任公司电力科学研究院 | Method for precisely acquiring short-circuit impedance value of transformer at 50Hz |
CN111505383A (en) * | 2019-01-31 | 2020-08-07 | 英格索兰工业美国公司 | Device for measuring impedance of load |
CN110057283A (en) * | 2019-03-11 | 2019-07-26 | 国网江苏省电力有限公司淮安供电分公司 | A kind of deformation of transformer winding intelligent detecting method based on short-circuit reactance |
CN110244127A (en) * | 2019-07-30 | 2019-09-17 | 广东电网有限责任公司 | A kind of the frequency sweep impedance test device and method of transformer |
CN110244127B (en) * | 2019-07-30 | 2021-03-12 | 广东电网有限责任公司 | Device and method for testing frequency sweeping impedance of transformer |
CN110645888A (en) * | 2019-10-18 | 2020-01-03 | 国网辽宁省电力有限公司抚顺供电公司 | Winding deformation judgment method based on frequency response analysis FRA |
CN112180147A (en) * | 2020-09-25 | 2021-01-05 | 加特兰微电子科技(上海)有限公司 | Power amplifier output impedance abnormity detection method, detection device and related device |
CN112180147B (en) * | 2020-09-25 | 2022-12-23 | 加特兰微电子科技(上海)有限公司 | Power amplifier output impedance abnormity detection method, detection device and related device |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140321 Owner name: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140321 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100192 HAIDIAN, BEIJING TO: 100031 XICHENG, BEIJING |
|
TR01 | Transfer of patent right |
Effective date of registration: 20140321 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: China Electric Power Research Institute Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee before: China Electric Power Research Institute |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20111116 |