Novel pressure regulating device

The utility model discloses a novel pressure regulating device, including isolation transformer, maintenance switch, contactor subassembly, controlling means and power, isolation transformer's input is connected with an output of contactor subassembly, and another output of contactor subassembly is connected with controlling means's an input, and controlling means's the output and the input of contactor subassembly are connected, the input of power is connected with another input of controlling means, and the one end of overhauing the switch is equipped with three connection port, and the three connection port who just overhauls the switch is connected with the contactor subassembly respectively, and one of them connection port who overhauls the switch is connected with the power, overhauls the other end of switch and is connected with isolation transformer. The utility model discloses with contactor component control transformer winding connected mode, accomplish voltage compensation and adjust, compare in traditional carbon brush voltage regulator, the utility model discloses reliable safety, and easily realize.