PERFORMANCE OF HIGH-IMPEDANCE FAULT-DETECTION ALGORITHMS IN LONG-TERM FIELD TRIALS

作     者：RUSSELL, BD BENNER, CL 

作者机构：Power System Automation Laboratory Department of Electrical Engineering Texas A&M University College Station TX 77843-3128 USA 

出 版 物：《ELECTRIC POWER SYSTEMS RESEARCH》 (Electr Power Syst Res)

年 卷 期：1994年第31卷第2期

页      面：71-77页

核心收录：

学科分类：0808[工学-电气工程] 080802[工学-电力系统及其自动化] 08[工学] 

主　　题：DIGITAL SIGNAL PROCESSING FAULT DETECTION POWER SYSTEM PROTECTION RELAY PROTECTION 

摘      要：Researchers at Texas A&M University s Power System Automation Laboratory have tested the long-term performance of high-impedance fault detection algorithms at five utilities. During the test period, prototype units were installed on feeders with a wide variety of load types. They were exposed to long-term load variations, switching events, and naturally occurring faults. One unit was also exposed to 62 staged fault tests. None of the prototype units experienced any false indications. Sensitivity to staged faults was very good. Finally, during the test period, one of the prototypes experienced a non-staged high-impedance fault, it successfully detected this fault.