摘要
本文从接地电阻的计算公式出发,导出估算降阻剂效果的理论公式。指出降阻剂对中型以上地网的工频接地电阻的降阻作用不大。即使考虑强大的渗透作用,集中接地体或小型地网的降阻率也不会超出56.6%。降阻剂并不能降低接地极在强雷电流下的冲击接地电阻。有关降阻剂在线路杆塔接地中应用的问题尚待进一步研究。
Series theoretical formulae are derived in this paper based on grounding resistance fo rmulae to estimate the effect of resistance-reducing agent, It is indicated that for the moderated-sized ground grid the effet of resistance-reducing agent is not of very much. The resistance-reducing rate for the small ground grid or electrode is less than 56.6%, even under large permeability. Resistance-reducing agent does not reduce the impulse grounding resistance under large lightning current. The application of resistanee-reducirtg agent in tower grounding systems needs to be researched further.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
1989年第3期59-64,共6页
High Voltage Engineering
