Instantaneous trip power transformer

Apparatus for performing a function in conjunction with a circuit breaker, comprising:

• a high current main outer winding for providing a main current path and being a primary winding for a power transformer;
• a secondary winding for said power transformer comprising a conductor wound in a cylindrical shape and having a bore therethrough, said main outer winding wound at least partially around said secondary winding conductor;
• a third instantaneous trip winding located within said secondary winding conductor bore;
• a circuit breaker actuator assembly;
• an actuation sensor,
• said circuit breaker actuator assembly and said actuation sensor being coupled in a series circuit with said primary winding and a load, said series circuit being adapted to be coupled across a main alternating current power supply;
• a circuit breaker power supply coupled across said secondary winding;
• circuit breaker electronic circuitry coupled to said circuit breaker power supply and responsive to said actuation sensor for determining fault conditions;
• and
• an actuator switch controlled by said circuit breaker electronic circuitry to supply energy to said third winding and thereby trip the circuit breaker when a fault condition has been determined by said circuit breaker electronic circuitry.

Apparatus for tripping a breaker switch, comprising:

• a high current main outer winding comprising a conductor for providing a main current path and being a primary winding for a power transformer;
• a secondary winding for said power transformer comprising a conductor wound in a cylindrical shape and having a bore therethrough, said main outer winding conductor wound at least partially around said secondary winding conductor;
• a third instantaneous trip winding located within said secondary winding conductor bore;
• a tripping mechanism activation plunger extending from one end of said third winding conductor, said plunger being adapted to be coupled to said breaker switch;
• a circuit breaker actuator assembly;
• an actuation sensor,
• said actuation sensor being coupled in a series circuit with said primary winding and a load, said series circuit being adapted to be coupled across a main alternating current power supply;
• circuit breaker electronic circuitry responsive to said actuation sensor for determining fault conditions;
• and
• an actuator switch controlled by said circuit breaker electronic circuitry to supply energy to said third winding and thereby trip the breaker switch when a fault condition has been determined by said circuit breaker electronic circuitry.