Automatic configuration method and device for power failure of voltage transformer

The invention discloses an automatic configuration method and device for power failure of a voltage transformer. The automatic configuration method for the power failure of the voltage transformer comprises the following steps: when the power failure of a voltage transformer on a bus is required, judging the wiring mode of the bus; if the bus is in a single-bus wiring mode, controlling distance protection on the bus to exit; controlling a disconnecting link of the voltage transformer to be disconnected, so that the voltage transformer is powered off; and controlling the distance protection input on the bus. According to the embodiment of the invention, the quit time of distance protection can be shortened, the probability of distance protection misoperation is reduced, and the operation reliability of the system is improved. 本发明公开了一种电压互感器停电的自动配置方法及装置。所述电压互感器停电的自动配置方法包括：当需要母线上的电压互感器停电时，判断所述母线的接线方式；如果所述母线为单母线接线方式，则控制所述母线上的距离保护退出；控制所述电压互感器的刀闸断开，使所述电压互感器停电；控制所述母线上的所述距离保护投入。本发明实施例可以缩短距离保护的退出时间，减小距离保护误动作的几率，提高系统运行可