|
|
|
| Cause Analysis of Transformer Neutral Point Gap Breakdown Caused by Line Fault |
| Zhang Qiang, Wu Shaowu, Wang Dequan |
| Jiangsu Power Grid Corporation Huaian Power Supply Company, Huai’an, Jiangsu 223002 |
|
|
|
|
Abstract The transmission line of a substation occur a 110kV single phase grounding fault which causes the action of the main transformer neutral point gap zero sequence protection and the cutting of main transformer operation. Through inspection of fault place and recorded fault data, the paper analyses the cause of the action of the main transformer protection caused by line fault, and gives some specific recommendations in order to ensure the safe operation of the system equipment.
|
|
Published: 24 November 2016
|
|
|
|
| Cite this article: |
|
Zhang Qiang,Wu Shaowu,Wang Dequan. Cause Analysis of Transformer Neutral Point Gap Breakdown Caused by Line Fault[J]. Electrical Engineering, 2016, 17(11): 153-156.
|
|
|
|
| URL: |
|
http://dqjs.cesmedia.cn/EN/Y2016/V17/I11/153
|
[1] 李荣华. 110kV变压器中性点过电压保护的完善[J]. 变压器, 2009, 46(8): 25-29.
[2] 周宏云, 陈宏佑. 110kV变压器中性点过电压保护分析[J]. 变压器, 2008, 45(5): 44-47.
[3] GB/T 50064—2014. 交流电气装置的过电压保护和
绝缘配合[S].
[4] 马辉, 郭小龙. 220kV主变压器中性点过电压保护的配置[J]. 高电压技术, 2001, 27(z1): 61-61, 63. |
|
|
|
2016, Vol. 17 
