基本信息:
- 专利标题： A PROTECTION RELAY FOR SENSITIVE EARTH FAULT PRTECTION
- 专利标题（中）：用于敏感接地故障保护的保护继电器
- 申请号：PCT/IB2011002524 申请日：2011-10-21
- 公开(公告)号：WO2012056287A2 公开(公告)日：2012-05-03
- 发明人： SUTHAR NIRAJ , SHAH VISHAL H , DESAI PRIYANK , SHAFI MOHAMMED Y
- 申请人： ABB TECHNOLOGY LTD , SUTHAR NIRAJ , SHAH VISHAL H , DESAI PRIYANK , SHAFI MOHAMMED Y
- 专利权人： ABB TECHNOLOGY LTD,SUTHAR NIRAJ,SHAH VISHAL H,DESAI PRIYANK,SHAFI MOHAMMED Y
- 当前专利权人： ABB TECHNOLOGY LTD,SUTHAR NIRAJ,SHAH VISHAL H,DESAI PRIYANK,SHAFI MOHAMMED Y
- 优先权： IN3213CH2010 2010-10-28
摘要：
The invention relates to design of protection feature in a self powered protection relay. It specifically provides a relay with sensitive earth fault protection. This protection is being achieved in tandem with optimal power on trip time (switching to fault) and with integrated logic for inrush discrimination. The self supplied protection relay is provided with a current processing module adapted to measure and evaluate line current to generate trip signal. The current processing module has the capability of inrush current suppression to block earth fault detection during an inrush condition and thereby increase sensitivity of fault detection.
摘要（中）：
本发明涉及自保护继电器中保护特征的设计。 它具体提供一个具有敏感接地故障保护的继电器。 这种保护是通过最佳跳闸时间（切换到故障）功率和集成逻辑进行突发性鉴别来实现的。 自供电保护继电器具有适于测量和评估线电流以产生跳闸信号的当前处理模块。 当前的处理模块具有浪涌电流抑制功能，能够在涌入状态下阻止接地故障检测，从而提高故障检测灵敏度。