LEI Hong-cai1, HE Jun-jia1, TANG Mei-yun3, et al. Analysis and Treatment of a 220 kV Main Transformer Accident[J]. High voltageapparatus, 2005, (2): 141-142.
LEI Hong-cai1, HE Jun-jia1, TANG Mei-yun3, et al. Analysis and Treatment of a 220 kV Main Transformer Accident[J]. High voltageapparatus, 2005, (2): 141-142.DOI:
一起220kV主变压器事故分析及处理
摘要
对一起变压器事故损坏情况进行了检查
对事故原因进行了分析
提出造成该次事故的原因是变压器低压引线的绝缘支架机械强度不够。为了避免类似事故的发生
变压器设计时不但要对绕组的抗短路能力进行验算
还应对引线支撑件的抗短路能力进行验算。
Abstract
This paper analyzes a transforner accident
the poor mechanical strength of lead’s insulation support in low voltage side is considered to be the reason of the accident. In order to avoid this kind of accident
the ability against accidental short-circuit of both lead’s insulation support and windings should be verified.