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| 摘要: |
| 介绍了马鞍山第二发电厂发电机负序功率方向继电器在区外故障过程中的误动情况 ,通过分析该负序功率方向继电器的电原理图 ,而得到其动作特性。对比该负序功率方向继电器和纵向零序电压继电器所组成的匝间保护与传统的匝间保护接线方式的区别 ,因该负序功率方向继电器无常闭接点输出而不能起到传统匝间保护中的闭锁作用 ,但又按照传统匝间保护接线 ,因此造成了误动。根据问题所在提出了解决问题的方法 |
| 关键词: 发电机,负序功率方向继电器,动作分析 |
| DOI： |
| 分类号:TM771;TM58 |
| 基金项目: |
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| Action Analysis of Generator Negative Sequence Power Directional Relay |
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HUANG Xiao hui
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| Abstract: |
| The maloperations of generator negative sequence power directional relay happened in Maanshan No. 2 Power Plant when fault occurs outside the protected zone are introduced. By analyzing its electrical principle figure, the action feature of power directional relay on negative sequence is obtained. The connection modes of conventional inter turn fault protection and that, which is made up of negative sequence power directional relay and zero sequence over voltage relay are compared. Because the negative sequence power directional relay has no normal close output, it can't function as the conventional inter turn fault protection in lock up behavior, but the connection mode is same, it causes the maloperation. The solutions are put forward. |
| Key words: generator,negative sequence power directional relay,action analysis, |
