Ferroresonant transformer structure

Claim 1

A ferroresonant transformer, comprising: a primary winding and at least one secondary winding; a transformer core including a primary core section upon which said primary winding is located for providing a magnetic path linking magnetic flux to said primary winding and including a secondary core section upon which a first secondary winding is located for providing a magnetic path linking magnetic flux to said first secondary winding; a magnetic shunt path for returning portions of said magnetic fluxes generated by each of said primary and said first secondary windings without linking said portions to the other of said primary and said first secondary windings; and a capacitor coupled to a winding other than said primary winding, the value of said capacitor selected for forming a ferroresonant transformer for generating an increased magnetic flux for saturating said secondary core section under said first secondary winding, at least a portion of said primary core section formed from a first magnetic material selected for a magnetic property wherein the saturation flux density is equal to that of low carbon non-oriented steel, said secondary core formed at least in part from a second magnetic material selected for a magentic property wherein the saturation flux density is equal to that of grain oriented silicon steel, said portion of said secondary core section further selected for a magnetic property wherein the magnetizing force at which saturation flux density occurs for said portion of said secondary core section is less than the magnetizing force at which saturation flux density occurs for said portion of said primary core section for reducing the magnetizing current requirement of said capacitor.