具有新判据的多相补偿距离继电器  

NEW CRITERIA FOR POLYPHASE DISTANCE RELAY

作　　者：李晓明[1] 

机构地区：[1]山东工业大学电力工程系

出　　处：《山东工业大学学报》1989年第1期1-8,共8页

摘　　要：提出了两种多相补偿距离继电器新判据:(1)接地多相补偿距离继电器;(2)相间多相补偿距离继电器。对在区外短路(包括正向区外和反方向短路)与振荡同时发生条件下的继电器性能进行了理论分析。通过分析,阐明了新的特性和获得了有意义的结论。Presents and theoretically analyses two new criteria for polyphase distance relay. (1)Polyphase grounding distance relay takes 7-input comparators represented by the porameters:each phase's compensation voltage U_A′,U_B′ U_C′(in protection area),U_A″,U_B″,U_C″(outside protection area), and zero squence current I_O. Its criterion for operation is the 7 vectors lie to half plane. (2)Polyphase fault distance relay takes 4 input comparators represented by the parameters: positive sequence compensation voltage U_1′, U_1″, and negative sequence compensation voltage U_2′, U_2″. Its criterion for operation is |U_2′|>|U_1′| and |U_2″|>|U_1″|.

关 键 词：距离继电器 多相补偿 距离保护 

分 类 号：TM588[电气工程—电器]