首页>
外国专利>
METHOD AND SYSTEM FOR TRANSIENT AND INTERMITTENT EARTH FAULT DETECTION AND DIRECTION DETERMINATION IN A THREE-PHASE MEDIAN VOLTAGE ELECTRIC POWER DISTRIBUTION SYSTEM
METHOD AND SYSTEM FOR TRANSIENT AND INTERMITTENT EARTH FAULT DETECTION AND DIRECTION DETERMINATION IN A THREE-PHASE MEDIAN VOLTAGE ELECTRIC POWER DISTRIBUTION SYSTEM
展开▼
机译:三相中压配电系统暂态和间歇性接地故障的确定方法和系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method and a system for transient and intermittent earth fault detection and direction determination in a three-phase median voltage electric power distribution system which comprises many lines. The system comprises: sampling means wherein the residual current and residual voltage on said lines are sampled, transient direction detection means based on instantaneous power, random intermittent detection means based on intermittent change of residual current amplitude, means of integrating transient direction and random intermittent detection, and alarm means indicating maintenance personnel to check the status of one line.
展开▼