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| 由电流互感器饱和引起差动保护误动的分析及试验方法 | |
| 引用本文： | 车弛,白雪,张相明,白润波. 由电流互感器饱和引起差动保护误动的分析及试验方法[J]. 沈阳工程学院学报(自然科学版), 2007, 3(4): 349-350,363 |
| 作者姓名： | 车弛 白雪 张相明 白润波 |
| 作者单位： | 1. 营口供电公司,生计处,辽宁,营口,115000 2. 泛华工程有限公司,沈阳分公司,沈阳,110006 3. 沈阳工程学院,兴源电力设备公司,沈阳,110034 |
| 摘 要： | 针对发电厂过高压厂用变压器或起动-备用变压器在区外故障时或厂用大容量电动机起动时差动保护误动作的情况,着重介绍了通过电流互感器伏安特性试验确定其饱和特性的方法,并用试验验证了该方法的可行性.同时,提出了关于避免差动保护因电流互感器饱和而误动的措施. |
| 关 键 词： | 电流互感器 饱和 差动保护 误动作 伏安特性试验 |
| 文章编号： | 1673-1603（2007）04-0349-03 |
| 修稿时间： | 2007-06-06 |
Malfunction Analysis and Testing Method of Differential Protection Caused by Current Transformer Saturation |
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| CHE Chi,BAI Xue,ZHANG Xiang-ming,BAI Run-bo. Malfunction Analysis and Testing Method of Differential Protection Caused by Current Transformer Saturation[J]. Journal of Shenyang Institute of Engineering(Natural Science Edition), 2007, 3(4): 349-350,363 | |
| Authors: | CHE Chi BAI Xue ZHANG Xiang-ming BAI Run-bo |
| Affiliation: | 1. Yingkou Power Supply Company, Yingkou 1150002, China; 2. Fanhua Engineering Ltd. Shenyang Branch, shenyang 110006, China; 3. Shenyang Xingyuan Electric Equipments LTD,, Shenyang 110136, China |
| Abstract: | For external fault of over-voltage station transformer or standup-standby transformer in power plant,or the differential protection malfunction during the starting of bulk station motor,this paper introduces determination method of saturation characteristics by current transformer voltage-ampere characteristics experiment.And the feasibility was validated.Measures that can avoid the malfunction of differential protection due to saturation of current transformers are introduced. |
| Keywords: | current transformers saturation differential protection malfunction voltage-ampere experiment |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |