公开(公告)号：EP0092734A3

公开(公告)日：1985-05-15

申请号：EP83103546

申请日：1983-04-13

申请人： WESTINGHOUSE ELECTRIC CORPORATION

发明人： Udren, Eric Avram

IPC分类号： H04B03/58

CPC分类号： H04B3/58

摘要： A regenerator (10) for providing detection, remodulation, and retransmission of a digital data signal (20) propagated in the differential mode over a pair of bundle conductors (12,16) of a power line. The electric power signal, propagated in the common mode over the same bundle conductors, is conducted through the regenerator and provides a power supply voltage (V.) for the regenerator electronics. A series of electrical traps (38, 40, 42, 44) prevent the electric power signal from being conducted into that portion of the regenerator utilized for processing of the data signal. The regenerator also includes bypass switches for bypassing the regenerator electronics when a power supply voltage sufficient to operate the electronics is unavailable.

摘要翻译： 一种用于在电力线的一对束导体上以差分模式传播的数字数据信号的检测，再调制和重传的再生器。 通过同一束导体以共模传播的电功率信号通过再生器传导，为再生器电子设备提供电源电压。 一系列电气捕获器防止电力信号被传导到用于处理数据信号的再生器的那部分。 当足够操作电子设备的电源电压不可用时，再生器还包括用于旁路再生器电子设备的旁路开关。

公开(公告)号：EP0089515A1

公开(公告)日：1983-09-28

申请号：EP83101895.7

申请日：1983-02-26

申请人： WESTINGHOUSE ELECTRIC CORPORATION

发明人： Udren, Eric Avram

IPC分类号： H04B3/54 ,  H02J13/00

CPC分类号： H04B3/542 ,  H02J13/0024 ,  H04B2203/5416 ,  H04B2203/5425 ,  H04B2203/5466 ,  H04B2203/5483 ,  H04B2203/5491 ,  Y02E60/723 ,  Y02E60/7823 ,  Y02E60/7892 ,  Y04S10/16 ,  Y04S40/122 ,  Y04S40/146

摘要： A communication system for transmitting baseband digital signals (16) on an electrical power line (12). A pulse generator (14) produces digital signals which are limited to a frequency spectrum of 30 kHz to 300 kHz and applied directly, i.e., without modulation, to an electrical power line. At the receiving terminal (25) an amplifier (32) compensates for attenuation characteristics of the electrical power line and the received signal is then sampled (34) to extract the information from it. To avoid interference when both a transmitting and receiving link are located at a substation, the baseband system incorporates a mimic network to mimic the interference signal erroneously picked up by the receiving link from the transmitting link located at the same substation. The mimic signal is then subtracted from the interference signal to neutralize the effect of the latter. When both a baseband digital communication system and a carrier communication system utilize the same electrical power lines, provision is made for interrupting the baseband digital signal to allow communications via the carrier system.

公开(公告)号：EP0119744A1

公开(公告)日：1984-09-26

申请号：EP84301003.4

申请日：1984-02-16

申请人： WESTINGHOUSE ELECTRIC CORPORATION

发明人： Udren, Eric Avram

IPC分类号： H02H3/38 ,  H02H3/30

CPC分类号： H02H3/38 ,  H02H3/081 ,  H02H7/262

摘要： Logic circuitry for a directional comparison blocking protective relay scheme is described. A forward-reaching and a reverse-reaching protective relay (38) located at the local and remote terminals of a protected line segment (43) determine whether a fault is internal or external to the protected line segment. To carry out this function, the protective relays produce signals (64, 70, 68, 62) representative of fault location and communicate with each other via a communications channel (65). Processing the signals at each terminal is performed to determine the fault location and avoid tripping when the fault character changes. By using fault detectors to determine the existence of a fault, the logic at each terminal for combining the signals is simplified and security against false tripping is improved.

摘要翻译： 描述了用于方向比较阻塞保护中继方案的逻辑电路。 位于受保护线路段（43）的本地和远程终端的前向和反向保护继电器（38）确定故障是否在受保护线路段内部或外部。 为了执行此功能，保护继电器产生代表故障位置的信号（64,70,68,62），并通过通信通道（65）相互通信。 执行每个终端处理信号以确定故障位置，并避免故障字符变化时跳闸。 通过使用故障检测器来确定是否存在故障，用于组合信号的每个终端处的逻辑被简化，并且提高了针对错误跳闸的安全性。

公开(公告)号：EP0092734A2

公开(公告)日：1983-11-02

申请号：EP83103546.4

申请日：1983-04-13

申请人： WESTINGHOUSE ELECTRIC CORPORATION

发明人： Udren, Eric Avram

IPC分类号： H04B3/58

CPC分类号： H04B3/58

摘要： A regenerator (10) for providing detection, remodulation, and retransmission of a digital data signal (20) propagated in the differential mode over a pair of bundle conductors (12,16) of a power line. The electric power signal, propagated in the common mode over the same bundle conductors, is conducted through the regenerator and provides a power supply voltage (V.) for the regenerator electronics. A series of electrical traps (38, 40, 42, 44) prevent the electric power signal from being conducted into that portion of the regenerator utilized for processing of the data signal. The regenerator also includes bypass switches for bypassing the regenerator electronics when a power supply voltage sufficient to operate the electronics is unavailable.

摘要翻译： 一种用于在电力线的一对束导体上以差分模式传播的数字数据信号的检测，再调制和重传的再生器。 通过同一束导体以共模传播的电功率信号通过再生器传导，为再生器电子设备提供电源电压。 一系列电气捕获器防止电力信号被传导到用于处理数据信号的再生器的那部分。 当足够操作电子设备的电源电压不可用时，再生器还包括用于旁路再生器电子设备的旁路开关。