一种基于煤矿智能变电站的防越级跳闸保护方案

Scheme of Anti-Step Tripping Based on Mine Grid Intelligent Substation

目前煤矿电网大多数采用多级短线路串供的形成辐射状的供电网络,主要存在越级跳闸问题,对煤矿供电安全可靠性造成很大的影响。为提高煤矿电网安全供电质量,提出了在基于智能变电站的基础上实现煤矿电网越级跳闸的解决方案,为煤矿电网越级跳闸的解决提供了新的思路。

Multi-level short line series supply form is commonly used in mine power grid to form a radial power network. However, step tripping exists inevitable, which has significantly influence on the safety and reliability of mine power supply. In order to improve safe power quality of mine grid, the scheme of anti-step tripping is proposed based on intelligent substation. It provides new idea for solve over step tripping of mine grid.