摘要
讨论了消弧线圈伏安特性、响应速度等特性对消弧系统补偿效果的影响,并对消弧线圈所涉及到的某些概念作了说明。以实例分析出伏安特性非线性的消弧线圈将严重影响高阻接地时的接地残流。从降低线路跳闸率和减小单相接地电流对周围环境的影响出发,提出了快速响应的消弧系统更适用于全电缆线路或以电缆为主的配电网络。
This paper discusses the influence of are suppression coil voltage-ampere characteristics and speed of response on the compensation effect of are suppression system, illustrates some concepts being involved in arc suppression coils. A case study shows that the are suppression coil with non-linear V-I characteristics will seriously affect the grounding residual current during high resistive grounding fault. Aiming at reducing tripping rate and impact of single phase grounding fault current on surrounding environment, the paper presents a quick response are suppression system which is more suitable to the distribution network with all cables line or dominated by cable lines.
出处
《电力设备》
2000年第3期18-20,共3页
Electrical Equipment
关键词
配电网
消弧线圈
伏安特性
响应速度
残流
distribution netwoik
arc suppression coil
voltage-ampere characteristics
speed of response
residual current
