摘要
某光伏电站发生了一起35 kV主变及其他一次设备损坏的事件,通过现场检查、故障录波分析及现场保护试验等,确定此次事件是由10 kV备用段母线分段断路器柜发生相间短路故障引起的扩大事件。对事件发生原因进行了分析,并提出了相应防范措施,以避免类似事件的发生。
A 35 kV main transformer and other primary equipment were damaged at a photovoltaic power station in Yunnan.Through on-site inspection,fault waveform analysis,and on-site protection tests,it was determined that the event was caused by an inter-phase short circuit fault in the 10 kV standby bus section breaker cabinet,which led to the expansion of the main transformer and other primary equipment being burned out.This article analyzes the causes of the event in detail and proposes corresponding preventive measures to avoid the recurrence of similar incidents.
作者
任妮
李洪波
陈俊
朱帅
REN Ni;LI Hongbo;CHEN Jun;ZHU Shuai(Yunnan Electric Power Technology Co.,Ltd.,Kunming 650217,China)
出处
《电工技术》
2025年第22期264-266,共3页
Electric Engineering
关键词
相间短路
主变
短路故障
inter-phase short circuit
main transformer
short circuit
