摘要
通过对河南开封东郊变电站模拟弧光接地试验的分析及对河北正弦波电气公司弧光过电压记录数据的分析,认为变电站频繁发生一次设备爆炸的原因是由于暂态过程中避雷器和消弧线圈没有起到抑制弧光过电压的作用。文章还指出变电站谐波含量太高,会因长时间运行而缩短一次设备的工作寿命;变电站投入的消弧线圈如果补偿不当还会给系统带来干扰。
Based on the simulation analysis of arc grounding test at kaifeng east substation and recording data of arc over-voltage on site from Hebei Sinewave Electrical Co., it is pointed out that there are three reasons of exploding frequently for the substation＇ s primary equipments. Firstly, the arrester and arc suppression coil did not work on inhibition of arc over-coltage in transient process. Secondly, the substation＇ s harmonic content is too high and the primary equipment＇ s life is seriously shorted in long operation. Thirdly, if the compensation from arc suppression coil is improper, it will disturb the system.
出处
《电力设备》
2008年第1期69-71,共3页
Electrical Equipment
关键词
变电站
过电压
弧光接地
消弧线圈
substation
over voltage
arc grounding
arc suppression coil
作者简介
丁俊毅（1975-），男，长期从事火力发电厂电气二次工作；
韩群雁（1977-），男，长期从事电力自动化工作；
徐秀峰（1977-），男，长期在电网调度部门从事继电保护、电网规划等工作。
