一起220kV主变低压短路事故的分析与处理  

Analysis and Treatment of a Short Circuit Accident at Low-voltage Side of a 220 kV Transformer

作　　者：刘胜军[1] 王慷[1] 刘山[1] 

机构地区：[1]保定供电公司,河北保定071000

出　　处：《高压电器》2009年第5期149-151,154,共4页High Voltage Apparatus

摘　　要：对一起220 kV主变低压短路事故的损坏情况进行了检查,对事故原因进行了分析,得出造成此次事故的原因是主变低压引线过长。为了避免类似事故的发生,设计主变时,除了对绕组的抗短路能力进行验算外.还应对引线的抗短路能力进行验算。This paper analyzes the damage condition of a 220 kV transformer which suffered short circuit accident at low-voltage side, and finds that excessive leading wire caused the accident.In order to avoid the similar accidents, both windings and leading wires ought to be verified in transformer design for their capacity against short circuit.

关 键 词：变压器 抗短路能力 引线 色谱分析 

分 类 号：TM407[电气工程—电器]