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1. 发明申请

US20090174976A1 CURRENT DIFFERENTIAL RELAY DEVICE, SIGNAL PROCESSING METHOD THEREOF AND POWER TRANSMISSION LINE PROTECTION SYSTEM 有权
标题翻译：电流差动继电器，信号处理方法及电力传输线路保护系统
公开(公告)号：US20090174976A1
公开(公告)日：2009-07-09
申请号：US12280494
申请日：2007-02-28
申请人： Masamichi Saga , Itsuo Shuto , Mitsuaki Mizunoue
发明人： Masamichi Saga , Itsuo Shuto , Mitsuaki Mizunoue
IPC分类号： H02H3/28
CPC分类号： H02H3/28
摘要： Two current differential relay devices 1 are installed at each terminal 3 of a two-terminal power transmission line 2, and connected to each other via two transmission paths 5 and 6, and perform current differential operations by transmitting and receiving the quantity data of electricity to each other. In the current differential relay device 1, two transmission means 14 normally each perform communications with the current differential relay device 1 of the other end of the power transmission line in parallel through the two transmission paths 5 and 6. Two current differential operation means 14 are connected to the two transmission means 14 respectively and perform independently two-series of current differential operations independently for each series associated with each of the transmission paths 5 and 6. The signal generation means 20 obtains the logical disjunction of the two-series of current differential operation results by means of the logical disjunction means 21 and uses the logical disjunction to generate a trip signal by means of the sequence operation means 15. The present invention provides a highly reliable current differential relay device of a high operating ratio which is capable of continuing the power transmission line protection function without any discontinuation even when one of the duplexed transmission paths has a transmission defect, as well as providing a signal processing method for the current differential relay device and a power transmission line protection system.
摘要翻译：两个电流差动继电器装置1安装在两端电力传输线2的每个端子3处，并且经由两个传输路径5和6彼此连接，并通过发送和接收电量数据来执行电流差分操作彼此。在电流差动继电器装置1中，两个发送装置14通常通过两个传输路径5和6并行地与电力传输线的另一端的电流差动中继装置1进行通信。两个电流差动装置14是分别连接到两个传输装置14，并且独立地对与每个传输路径5和6相关联的每个系列独立地执行两系列电流差分操作。信号产生装置20获得两系列电流差动的逻辑分离通过逻辑分离装置21进行操作结果，并使用逻辑分离通过顺序操作装置15产生跳闸信号。本发明提供了一种高可靠性的高动作比的电流差动继电器装置，其能够继续输电线路保护功能无任何停电即使其中一个双工传输路径具有传输缺陷，以及为电流差动中继装置和输电线路保护系统提供信号处理方法。

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