【作者】 连鸿波； 杨以涵； 谭伟璞； 李文锋；

【Author】 LIAN Hong-bo YANG Yi-han TAN Wei-pu LI Wen-feng (North China Electric Power University,Beijing 102206,China)

【机构】 华北电力大学；

【摘要】 随着中压电网规模的不断扩大,系统的电容电流也越来越大,谐振接地方式在中压电网得到更加广泛的应用。谐振接地方式有效的遏制了电网中发生的各种瞬间接地电弧故障的发展,本文通过时这种接地方式下电流、电压以及电压谐振和电流谐振原理的分析,指出了谐振接地方式能有效熄灭电弧的原理、消弧线圈调谐的原则以及基于可实时调节消弧线圈的谐振接地电网单相接地故障选线新方法。更多还原

【Abstract】 The resonant earthed mode is now extensively applied in the MV system with the expanding of MV system and the increasing of capacitive current in the system.The expanding of instantaneous ground arc fault is effectively controlled.By analyzing the voltage,current,voltage resonance and current resonance principle in the resonant earthed system,this paper presents the principle extinguishing of grounding-arc and resonance adjustment of Peterson coil.A new method of fault line selection based on the real-time adjusting Peterson coil is also presented in this paper.更多还原