摘要 |
A compressor terminal fault interruption method and interrupter for disconnecting power to a compressor terminal (20, 28) when terminal venting failure is imminent including a current sensing circuit (104) for sensing current provided to the terminal by a power source and outputting a sensed signal representing the current provided to the terminal and a control circuit (106). The control circuit includes a first circuit (102, 108) for outputting a reference signal representing input current much higher than locked rotor current, a second circuit (106) connected to the current sensing circuit and the first circuit for comparing the sensed signal to the reference signal, and a third circuit (RY1) connected to the second circuit for disconnecting power to the terminal when the sensed signal exceeds the reference signal, thereby preventing excessive current from reaching the compressor terminal (20, 28). |