投切空长线试验触发方法的研究

A New Trigger Method for Switching on off Unload Line Tests

提出了一种新的触发方法、设计并制作出触发电路，成功应用于投切空长线试验，解决了线路末端记录仪器的触发启动问题，为系统调试带来了极大的便利。

This paper gives a new trigger method, and designs a trigger circuit successfully used in switching on off unload lines tests according to this method. It has proved that this method is effective in triggering record instrument placed at the end of lines.