摘要
随着电力系统自动化程度的提高,多数设备都需要集中控制,令控制电缆长度进一步增加,导致控制回路中产生感应电压,进而可能使设备控制出现拒动和误动现象。本文以徐州彭城电厂三期工程2×1 000 MW机组电气调试过程中线路隔离开关控制无法正常动作为例,探讨感应电压产生的原因及其对交流控制回路的影响,并提出解决方法,有效地消除了交流控制回路中的感应电流。
With the increase of the power system automation,most electrical equipments are needed to control,so centralized control cable length was increased,the voltage in control circuits was induced and miss operation of equipment control occurred.Based on abnormal action of isolating switch control during electrical commissioning process in Xuzhou Pengcheng Power Plant Ⅲ project,production causes of inductive voltage and it's influence on control circuits are analyzed.The solutions to eliminate inductive currency was discussed.
出处
《湖南电力》
2010年第S1期94-96,共3页
Hunan Electric Power
关键词
交流控制回路
电缆电容
感应电压
exchange control loop
cable capacitance
inductive voltage
