云冈矿地面配电盘技术改造

Talking about the Technical Transformation of Ground Switchboard in Yungang Coal Mine

云冈矿地面配电盘6kV高压盘陈旧、老化,继电保护装置灵敏度不高,断路器操纵机构笨重,手动操纵困难。针对以上问题,在配电盘改造中使用了GKP140微机测控保护继电装置和VD9永磁真空断路器,保证了全矿地面供电系统的安全、可靠和经济运行。

The 6kV high-voltage board of the ground switchboard in Yungang Coal Mine is old and tired, the sensitivity of its protective relaying equipment is low, breaker’s operating mechanism is heavy, and manual control is difficult. IN the light of abovementioned problems, the GKP140 microcomputer measurement and control based protective relaying equipment and VD9 permanent-magnet vacuum circuit breaker are used in the transformation of switchboard, guaranteeing the safe, reliable and economic operation of ground power supply system in whole Yungang Coal Mine.