Configuration method and device for power failure of bus voltage transformer

An embodiment of the invention discloses a configuration method and device for power failure of a bus voltage transformer. The configuration method for power failure of the bus voltage transformer comprises the steps of: acquiring a working state of the bus voltage transformer; when determining that the bus voltage transformer needs to be powered off, controlling a feeder line of the bus where the bus voltage transformer is located to quit voltage loss protection, and controlling a section switch corresponding to a spare power automatic switching function in which the bus voltage transformer participates to quit a spare power automatic switching state; and controlling a capacitor of the bus where the bus voltage transformer is located to exit the automatic voltage control state, and controlling a knife switch of the bus voltage transformer to be switched off. According to the configuration method and the device for power failure of the bus voltage transformer provided by the embodiment of the invention, the r