井下高压电网选择性联锁自适应过流保护系统研究

Study on the Over-current Protection System with Selective Interlock and Self-adaption for Underground High-voltage Distribution Network

针对煤矿井下高压电网过流保护存在的问题,利用自适应电流保护与各级保护间的选择性联锁,提出了井下高压电网新型的选择性过流保护系统方案。

According to the existing problems of the over-current protection in the underground high- voltage distribution network, to use the preliminary theory of the self-adaptive current protection and the selective interlock of each level, and put forward a new method for the selective over-current protection in the underground high-voltage distribution network.