控制电缆分布电容对控制回路的影响分析及处理  

Effect Analysis and Processing of the Distributed Capacitance for Control Cable on Control Loop

作　　者：杜建华[1] 王长水[1] 

机构地区：[1]首钢京唐钢铁联合有限责任公司,河北唐山063200

出　　处：《自动化技术与应用》2010年第9期120-122,共3页Techniques of Automation and Applications

摘　　要：在远距离交流继电控制回路中,若以多芯屏蔽电缆作为线路的信号传输导线,其芯线和导线的屏蔽层间或芯线与芯线间的分布电容在一定条件下可导致自动控制回路产生误动作和误显示。本文将就屏蔽控制电缆的芯线与屏蔽层间的分布电容电流对控制回路的影响进行分析。In the remote relay control loop of AC circuits, if multiple shielded cable is used as the signal transmission wires, the distributed capacitance between wires or between shield layer and wires, will cause the automatic control circuit to produce malfunction and error instructions in certain condition. This paper analysises the effect of distributed capacitance for shielded cable to relay control loop.

关 键 词：继电控制 分布电容 电容电流 屏蔽控制电缆 

分 类 号：TM531.4[电气工程—电器]