In view of problem that scheme of single preventing override trip and scheme of preventing override trip of surface power system cannot solve underground override trip fault effectively. the paper proposed a scheme that using power monitoring system to solve underground override trip fault. Taking power network of Henan Pingbao Coal Industry Company as example. it introduced realizing... https://www.bekindtopets.com/hot-mega-Allflex-840-USDA-HDX-EID-Tags-20-Bag-save-big/