摘要
针对某换流站阀外冷系统风机电源回路进行分析,指出其存在阀外冷风机变频器故障导致进阀温度高造成直流闭锁现象的隐患,并提出解决方案,现场试验表明工频回路改造后的风机电源回路消除了原有隐患,配置更加可靠,验证了该方案的有效性。
Power circuit of valve external cooling fan in certain converter station is analyzed. The bidden failures of DC block resulted from high inlet temperature ＆ fault of valve external cooling fan are presented. The solution is to add power frequency branch to increase the reliability of equipment operation. The result shows that the updated power circuit can eliminate bidden failures, and is more reliable and effective.
出处
《陕西电力》
2016年第8期88-90,共3页
Shanxi Electric Power
关键词
阀外冷系统
电源回路
隐患
valve external cooling system
power circuit
hidden failure
