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发明公开
CN104184493A 电力线路在故障及检修状态时保障电力线通信的系统 无效 - 驳回

电力线路在故障及检修状态时保障电力线通信的系统
摘要：
本发明涉及一种电力线路在故障及检修状态时保障电力线通信的系统，包括控制终端、传输接口、数据处理模块、信号发送装置以及信号接收装置；其特征在于：所述第一电力载波取样模块是通过三相耦合电容器耦合到35kV线路；其中采用C相作为虚拟中心线；信号发送传输回路采用A-B相，每个信号点需要安装三个高频耦合电容器，其中C相高频耦合电容器接地作为虚拟中心点。本发明能保证电力线路故障或检修状态下也能正常通信。
摘要（英）：

The invention relates to a system for ensuring electric power line communication during a breakdown or maintenance state of an electric power circuit. The system comprises a control terminal, a transmission interface, a data processing module, a signal sending device and a signal receiving device, and is characterized in that a first electric power carrier sampling module is coupled to a 35kV circuit through a three-phase coupling capacitor; a C-phase is adopted to act as a virtual center line; a signal sending and transmitting circuit adopts an A-phase and a B-phase, three high-frequency coupling capacitors are required to be installed at each signal point, and a C-phase high-frequency coupling capacitor is grounded to act as a virtual center point. The system provided by the invention can ensure normal communication during the breakdown or maintenance state of the electric power circuit.

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