Voltage switching control device and method with locking mode indication function

The invention discloses a voltage switching control device and method with an indication locking mode, and the device is characterized in that an indication lamp is additionally arranged in a normally closed contact loop of an isolation switch in a DC loop, and can be matched with a normally open contact starting loop of the isolation switch to indicate the actual position of the isolation switch during normal operation; when the primary equipment of the disconnecting switch needs to be replaced or overhauled and the wiring of the corresponding secondary circuit changes or rewiring occurs, the correctness of the wiring of the secondary circuit where the disconnecting switch normally-closed auxiliary contact is located can be checked in time in a master control room, and the working efficiency is improved. Meanwhile, a locking loop is additionally arranged on an alternating current loop of the double-bus voltage switching device, so that the singleness of the voltage loop can be ensured even if a magnetic latc