摘要
针对一种远距离供电的变压器接线,为了避免差动保护电流回路二次接线距离较长导致的回路易受干扰,电力互感器负载过大、选型困难问题,本文提出了"线路光纤差动+变压器差动"保护方法,论述了这种保护方法的原理及实现,并设计了相关回路的连接与配合。
Aimed at a kind of long-distance power supply transformer wiring,“optical differential+transformer differential”protection methods were put forworded in order to avoid loop interference about long differential protection current loop secondary wiring distance,large power transformer load and difficult selection problem.The principle and implementation of the protection methods were discussed and the relevant circuit connection and cooperation were designed.
作者
刘玉涛
Liu Yutao(Datang Huangdao Power Generation Co., Ltd, Qingdao, Shandong 266500)
出处
《电气技术》
2017年第4期129-131,135,共4页
Electrical Engineering
关键词
变压器保护
远距离供电
线路保护
远跳
远传
transformer protection
long-distance power supply
line protection
teletransmission
teleadjusting
