摘要
通过一起220 kV旁路代主变压器断路器倒闸操作过程中出现的主变压器保护差流异常现象,详细分析了异常差流产生的原因,指出了在旁路代主变压器断路器操作过程中存在的相关风险,并提出了有关防范措施,以保障旁代主变压器断路器操作中保护装置的安全稳定运行。
Through appeared abnormal phenomenon of the main transformer protection differential current in a 220 kV bypass road of the main transformer circuit breaker brake protection based on the switching operation of the transformer switch bypass,the reason of abnormal differential protection was analysis in detail,the relevant risks existed in the circuit breaker operation during the bypass road main transformer were pointed out,and put forward the related prevention measures,to ensure the safe and stable operation of the protection device in the bypass road of the main transformer circuit breaker operation.
出处
《安徽电力》
2014年第4期13-14,20,共3页
Anhui Electric Power
关键词
变电站
主变压器
差动保护
旁路
差流
分析
substation
main transformer
differential protection
bypass
differential current
analysis
