US PATENT SUBCLASS 323 / 308
.~.~.~ With core having an air gap or magnetic shunt

Current as of: June, 1999
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323 /   HD   ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS

304  DF  SELF-REGULATING (E.G., NONRETROACTIVE) {2}
305  DF  .~ Using a transformer or inductor as the final control device {2}
306  DF  .~.~ Ferroresonant {2}
308.~.~.~ With core having an air gap or magnetic shunt {1}
309  DF  .~.~.~.~> Including a ferrocapacitor across a tertiary winding

DEFINITION

Classification: 323/308

With core having an air gap or magnetic shunt:

(under subclass 306) Subject matter wherein the core of the ferroresonant transformer includes an air gap within one of the legs thereof or a magnetically permeable leg which bridges the core.