Research on Coal Mine Power System Anti-Override Trip Device Based on Fiber-Longitudinal Current Differential Protection
Abstract：Currently,the override trip problems commonly exist in coal mine power system.So the underground coal mine high voltage power systems are analyzed.One anti-override trip monitoring system of fiber longitudinal current differential protection is proposed based on GPS adjusting system.The system can realize sampling and full power data synchronization,realizes fault information data＇s information share.The inside and outside fault can effectively differentiates and also can quickly cut fault line selectively.It avoids large-scale power failure accidents because of override trip at underground coal mine.
Keywords：coal mine voltage powerGPS timing serverfiber-longitudinal current differential protectionanti-override trip
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 48-51 )