Transformer assembly using an internal load and method for forming same

A transformer for supplying power to an internal load comprising:

• a toroidal transformer core having a primary winding;
• a first electrode for contacting an internal load within a conductive housing;
• a second electrode for contacting the internal load within the conductive housing;
• and
• an adjustable contact for allowing a different size load to remain in contact with the first electrode and the second electrode;
• and
• wherein the first electrode, the second electrode, and the conductive housing form a secondary circuit for supplying power to the internal load positioned between the first electrode and the second electrode.

A transformer assembly comprising:

• at least one transformer core having a primary winding;
• a conductor surrounding the at least one transformer core;
• a plurality of electrodes positioned within the conductor for providing power to an internal load located within the conductor;
• and
• an adjustable contact for allowing the internal load to be varied in size;
• and
• wherein the conductor can be opened for replacing the internal load.

A transformer assembly for use in an electrode furnace comprising:

• a conductive housing;
• a transformer core having a primary winding positioned within the conductive housing;
• a first conductor and a second conductor positioned within the conductive housing;
• and
• wherein the first conductor, second conductor and conductive housing form a secondary circuit with a crucible positioned within the conductive housing for acting as a load, and
• an adjustable contact for allowing the crucible to be varied in size while remaining in contact with the first electrode and the second electrode.

A method of forming a transformer assembly for use with an internal load comprising the steps of:

• forming a transformer core having a primary winding;
• positioning a first electrode for contacting the load;
• positioning a second electrode for contacting the load;
• forming a secondary circuit comprising the first electrode, the second electrode, and at least one conductor;
• positioning the at least one conductor between the first electrode and the second electrode;
• and
• utilizing an adjustable contact for allowing the load to be varied in size while remaining in contact with the first electrode and the second electrode;
• and
• arranging the at least one conductor such that it surrounds the load, primary winding, transformer core, the first electrode and the second electrode.