Modular high voltage DC power supply with a removable component rack

Claim 1

A high-voltage DC power supply for an electrical field treater comprising: a. an open-top metal case adapted to be filled with transformer oil and carrying a removable waterproof cover secured thereto; b. a rack removably mounted within said metal case, said rack having a base and a plurality of upright supports forming a vertical guideway receiving at least one voltage multiplier module, said vertical guideway carrying keying means whereby each said voltage multiplier module is installed in said vertical guideway in only one orientation; c. a transformer mounted upon said base within said rack and having a primary winding connectable to a source of power and a secondary winding connected to terminal connectors carried upon an insulated base member mounted on said rack, said terminals forming the AC and DC inputs to each said voltage multiplier module; d. said at least one voltage multiplier module received within said vertical guideway and carrying superimposed and subtended complementary terminal connectors received on said terminal connectors on said insulated base member, said superimposed and subtended complementary terminal connectors being oriented in pairs whereby a plurality of voltage multiplier modules can be mounted in a superimposed relationship with electrical interconnection being effected by said complementary terminal connectors; e. each voltage multiplier module having top and bottom insulator members enclosing capacitors and rectifiers with integral wiring therein forming a voltage multiplier stage, one pair of superimposed and subtended complementary terminals forming electrical interconnection to AC input and output terminals from said secondary winding of said transformer and another of said pairs of superimposed and subtended complementary terminals forming electrical interconnection to DC input and output terminals and said secondary winding of said transformer, a flexible conductor having a mating connector at one end and connected to a resistor network at the other end forming the DC output of the power supply, each voltage multiplier module carrying a superimposed connector receiving the mating connector on said flexible conductor, said mating connector connected to the DC output of said voltage multiplier module and received in the superimposed connector on the topmost voltage multiplier module in said vertical guideway; f. an upright insulating member carrying Said flexible conductor and said resistor network; and g. a high voltage output bushing mounted in a wall of said case for conducting high-voltage current to an external electrical field treater, and the interior terminal of said bushing connected to said resistor network.