35kV变电站主变主保护动作及故障原因分析和解决对策  

Main Protection Action and Fault Cause Analysis and Countermeasures of Main Transformer in 35kV Substation

作　　者：田富波 TIAN Fu-bo(Fujian Province Yongan Coal Industry Co.,Ltd.,Yongan Fujian 366000,China)

机构地区：[1]福建省永安煤业有限责任公司供电所,福建永安366000

出　　处：《科技视界》2018年第5期62-63,共2页Science & Technology Vision

摘　　要：35 kV变电站是煤矿供电系统中重要的组成部分,它担负着电能转换和电能重新分配的任务,而变电站中的主变压器更是其中主要设备之一,它的安全运行与否关系到整个电网的安全,对电网的安全和经济运行有着举足轻重的作用。本文针对因雷击引起变压器主保护动作和变压器内部绕组击穿等故障原因进行分析并提出解决的对策。The 35kV substation is an important part of the coal mine power supply system.It is responsible for the task of power conversion and energy redistribution.The main transformer in the substation is one of the main equipments.Its safe operation is related to the entire The security of the power grid plays a decisive role in the safety and economic operation of the power grid.This article analyzes the causes of the main protection actions of the transformer and breakdown of the internal windings of the transformer due to lightning strikes,and proposes countermeasures.

关 键 词：主变保护动作 接地电流 小接地电流系统 单相接地故障 解决对策 

分 类 号：TM772[电气工程—电力系统及自动化]