500kV远跳保护装置收发信回路的改进

介绍了500kV远跳保护装置的工作原理及实际应用,分析了现有的远跳保护装置及其高频通道投退存在的问题。远跳保护装置的跳闸逻辑是收信加就地判据,因此,退出远跳保护装置及其高频通道只需退出其收信回路即可,现有的远跳保护装置收信回路均没有压板,设想在其收信回路中增加压板,使远跳保护装置及其收发信回路的投退变得更加简单方便。

Improvement on Receiving and Sending Circuit of 500kV Remote Transfer Trip Device

This paper introduces the operating principle and applying in practice of the 500kV remote transfer trip device, analyses the present problem of that device and the putting on and off in its high frequency channel.The trip logic of the device is: the receiving signal and the local criterion.So,when need to put off the device and its high frequency channel,you can take out its receiving circuit only.But there are not any links in receiving circuit of the device now.If the link in the receiving circuit will be added on board,it will become more convenient for the putting on and off.