Abstract: This paper presented a new solution of connecting mobile power generation vehicle with low voltage distribution equipment bus.An emergency power supply of power generation vehicle is connected to low voltage distribution cabinet quickly and efficiently through a dual-power switching power supply access device to realize the non-stop operation of distribution network.The structure and working principle of the device were elaborated and summarized in detail,and the effects and application fields were evaluated.

Key words: dual power switch, power access device, low voltage distribution cabinet, power-off operation