Self-powered circuit interruption arrangement

A circuit interrupter arrangement for interrupting current in a circuit path, comprising:

• a current inducer circuit for providing current corresponding to the current in the circuit;
• a hysteresis circuit, responsive to the current inducer circuit, for developing a control signal;
• a power control circuit, responsive to the hysteresis circuit control signal, for developing a voltage signal from the current provided by the current inducer circuit, the voltage signal operating between a first power related level and a second power related level;
• a power accumulator, responsive to the power control circuit, for accumulating a voltage sufficient to cause an interruption of the circuit;
• and
• a trip lock-out circuit, responsive to the hysteresis circuit, actuated to prevent an interruption of the circuit.

A circuit interrupter arrangement for interrupting current in a circuit path, comprising:

• a plurality of current transformers providing current corresponding to the current in the circuit;
• a hysteresis circuit, responsive to the current inducer circuit, for developing a control signal;
• a switch, responsive to the hysteresis circuit control signal, for developing a voltage signal from the current provided by the current inducer circuit, the voltage signal operating between a first power related level and a second power related level;
• a capacitor, responsive to the switch, for accumulating power to generate sufficient power to cause an interruption of the circuit;
• a phase-loss detection circuit;
• an overload detection circuit;
• a solenoid, responsive to the phase-loss detection circuit and the overload detection circuit, for causing an interruption of the circuit path;
• and
• a trip lock-out circuit, responsive to the hysteresis circuit, actuated to prevent actuation of the solenoid and interruption of the circuit path.