井下低压馈电开关增设电保持功能

摘要

When appear the mechanical switching failure or mechanical keeping damage of the underground substation BKD16-400Z/1140 (660) mine lfame proof type intelligent vacuum feed switch, short time can't ifx the problem, carry out the electric circuit technological transformation by added a set of electric attraction, which ensure the underground substation the low-voltage feed switch load continuous power supply, and has achieved remarkable economic beneifts.%针对井下变电所BKD16-400Z/1140（660）矿用隔爆型智能化真空馈电开关出现机械合闸故障及机械保持损坏时，短时间无法修复的问题，增设一组电吸合、电维持的电路进行技术改造，保证了井下变电所低压馈电开关负荷连续供电，取得了显著的经济效益。