Circuit breaker antipumping control system

Claim 1

In a control system for a circuit breaker having main contacts movable between open and closed positions auxiliary contacts having closed and open positions respectively occurring when the main contacts are in their open and closed positions, a main contact closing coil, and a source of electrical energy, the combination comprising: first switch means in circuit with the auxiliary contacts, the closing coil and the electrical energy source and having a conductive condition when the auxiliary contacts are in their closed condition for completing an energizing circuit to the closing coil whereby the main contacts move from their open to their closed position and the auxiliary contacts move from their closed to their open position; and Circuit means connected to said electrical energy source and the first switch means for actuating the first switch means to a conductive condition, said circuit means including a close switch and second switch means, said second switch means initially having a closed circuit condition in which the first switch means is actuated in response to operation of said close switch, and said second switch means thereafter having an open circuit condition preventing actuation of the first switch means when the second switch means has been continuously energized while the auxiliary contacts have been in their open position and then in their closed position.