摘要
通过对一次 6kV厂用电单相接地造成发电机定子接地保护误动的分析 ,阐述了厂用电系统单相接地对发电机零序电压的影响 ,通过试验数据和试验结果进行了验证。并据此对传统发电机基波零序电压型定子接地保护的原理提出了改进意见。
Through analyzing a maloperation of generator stator grounding protection caused by 6 kV single phase grounding in the service supply system,the effect of single phase grounding on the generators in the service supply system is described. Improvement of traditional protection of generator stator grounding based on 3U 0 is presented.
出处
《电力情报》
2001年第3期19-22,共4页
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