摘要
介绍了10 kV小电阻接地系统的特点,针对某110 kV变电所单相接地故障进行了零序等效电路分析,据此对接地变压器的误跳可能性进行了分析,并提出了相应改进措施。
The features of the 10 kV small resistance grounding system are introduced. The zero sequence network analysis of single-phase ground fault of 110 kV substation is made. Based on this, probability of the grounding transformer false trip is analyzed. The cor responding improvement measures are set forward.
出处
《冶金动力》
2013年第6期1-2,5,共3页
Metallurgical Power
关键词
小电阻接地
接地变误跳
改进措施
small resistance grounding
grounding transformer false trip
improvement measure
