Patent ID: 7015784

Claim:
A wound-rotor transformer comprising a primary winding wound on a core by means of an insulator, a first secondary winding adjacent to the primary winding and being disposed at its one side, a second secondary winding adjacent to the primary winding and being disposed at the other side, a primary input terminal for the primary winding, a secondary high tension terminal for the first secondary winding, a secondary high tension terminal for the second secondary winding, and a ground terminal for the second secondary winding; wherein the primary winding is connected to the primary input terminal and the lead wire of one end of the first secondary winding is connected to the secondary high tension terminal for the first secondary winding, and the lead wire of the other end of the first secondary winding is connected to the ground terminal for the first secondary winding, and the lead wire of one end of the second secondary winding is connected to the ground terminal for the second secondary winding, and a core is disposed inside of said each winding, and the secondary windings disposed at both sides of the primary winding constitute a plurality of outputs.