CN100421326C - 利用波形整形法进行差动保护的方法 - Google Patents
利用波形整形法进行差动保护的方法 Download PDFInfo
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- CN100421326C CN100421326C CNB031237053A CN03123705A CN100421326C CN 100421326 C CN100421326 C CN 100421326C CN B031237053 A CNB031237053 A CN B031237053A CN 03123705 A CN03123705 A CN 03123705A CN 100421326 C CN100421326 C CN 100421326C
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- current
- differential protection
- transformer
- waveform
- current transformer
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000007493 shaping process Methods 0.000 title claims abstract description 7
- 239000013598 vector Substances 0.000 claims abstract description 8
- 229920006395 saturated elastomer Polymers 0.000 claims description 15
- 238000009738 saturating Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000007257 malfunction Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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- Emergency Protection Circuit Devices (AREA)
- Protection Of Transformers (AREA)
Abstract
Description
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNB031237053A CN100421326C (zh) | 2003-05-28 | 2003-05-28 | 利用波形整形法进行差动保护的方法 |
Applications Claiming Priority (1)
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CNB031237053A CN100421326C (zh) | 2003-05-28 | 2003-05-28 | 利用波形整形法进行差动保护的方法 |
Publications (2)
Publication Number | Publication Date |
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CN1450702A CN1450702A (zh) | 2003-10-22 |
CN100421326C true CN100421326C (zh) | 2008-09-24 |
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CNB031237053A Expired - Lifetime CN100421326C (zh) | 2003-05-28 | 2003-05-28 | 利用波形整形法进行差动保护的方法 |
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CN (1) | CN100421326C (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100399662C (zh) * | 2003-12-24 | 2008-07-02 | 北京四方继保自动化有限公司 | 末端制动的数字式高压并联电抗器纵差保护方法 |
CN1635679B (zh) * | 2003-12-30 | 2010-12-15 | 许继电气股份有限公司 | Ta饱和时的电流差动保护方法 |
CN102768327B (zh) * | 2012-07-13 | 2015-02-04 | 深圳供电局有限公司 | 基于gps同步相位差动法检测故障的方法及备自投装置 |
CN103296648B (zh) * | 2013-05-19 | 2016-09-14 | 国家电网公司 | 抗电流反相影响的输电线路复合差动保护方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1054856A (zh) * | 1990-03-12 | 1991-09-25 | 西屋电气公司 | 差动电流保护电路 |
CN1130310A (zh) * | 1995-11-24 | 1996-09-04 | 孙志杰 | 波形对称方法的变压器差动保护 |
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2003
- 2003-05-28 CN CNB031237053A patent/CN100421326C/zh not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1054856A (zh) * | 1990-03-12 | 1991-09-25 | 西屋电气公司 | 差动电流保护电路 |
CN1130310A (zh) * | 1995-11-24 | 1996-09-04 | 孙志杰 | 波形对称方法的变压器差动保护 |
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CN1450702A (zh) | 2003-10-22 |
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