公开(公告)号：US4620257A

公开(公告)日：1986-10-28

申请号：US632846

申请日：1984-07-20

申请人： Yoshihiro Sano ,  Fumio Iwatani ,  Takao Kubo ,  Yoshiteru Miki

发明人： Yoshihiro Sano ,  Fumio Iwatani ,  Takao Kubo ,  Yoshiteru Miki

IPC分类号： H04B17/00 ,  H02H7/26 ,  H02J13/00

CPC分类号： H02H7/263 ,  H02J13/0055 ,  Y02E60/725 ,  Y04S10/20

摘要： In a carrier relay system in which protective relay apparatus are disposed in terminal stations respectively and interchange information between the terminal stations via a signal transmission line for detecting a trouble occurred in power transmission lines on the basis of the exchanged information, specific information K is inserted in a predetermined position of a signal transmitted from the first terminal station to the second terminal station, and the specific information K is inserted intact in another predetermined position of a signal returned from the terminal station to the terminal station. In the terminal station, the specific information K inserted in the signal transmitted therefrom is compared with the specific information K inserted in the signal returned from the terminal station for deciding the presence or absence of a trouble occurred in the power transmission lines. The signal transmission line extending between the terminal stations includes two transmission channels, and circuit breakers are tripped when a fault has occurred in one or both of the signal transmission channels and a trouble detection relay has operated.

摘要翻译： 在保护中继装置分别设置在终端站中的载波中继系统中，基于所交换的信息，经由用于检测输电线路中出现的故障的信号传输线在各终端站之间交换信息，插入特定信息K 在从第一终端站发送到第二终端站的信号的预定位置，并且将特定信息K完整插入到从终端站返回到终端站的信号的另一预定位置。 在终端中，将从其发送的信号中插入的特定信息K与从终端返回的信号中插入的特定信息K进行比较，以确定在输电线路中是否存在故障。 在终端站之间延伸的信号传输线包括两个传输通道，并且在一个或两个信号传输通道中发生故障并且故障检测继电器已经操作时，断路器跳闸。