电压偏低对井下低压保护装置影响分析

Analysis of low-voltage protection device on the iMPact of underground low voltage

保护装置误动将引起大面积停电、拒动将使故障扩大造成设备损坏或引起瓦斯煤尘爆炸、电雷管先期爆炸。分析井下低压保护装置误动、拒动的原因,有利于保护装置的改进,有利于供电安全、供电可靠、安全生产。

The malfunction of protection device will cause a large area blackout. Refusing will allow failure to expand and damage the equipment, or gas and coal dust explosion, electric detonators exploded early. It is beneficial for the improvement of protection devices, supply security, supply reliability and safety that the analyses of the reasons for underground low - voltage protection device malfunction and refusing.