Driving mechanism of a circuit breaker

Details Driving mechanism of a circuit breaker Driving mechanism of a circuit breaker

1993-04-22

1994-10-11

Look, Edward K.

Power plants

Pressure fluid source and motor

With control means for structure storing work driving energy

60426, 91417R, 91361, 91518, 91532, F16D 3102

Patent

active

053535944

ABSTRACT:
In a driving mechanism of a circuit breaker having first and second hydraulic operation apparatuses respectively driving a main contact and a resistor contact, a sequential control valve is provided between the first and second hydraulic operation apparatuses. The sequential control valve detects the operation of a differential piston for opening the main contact and switching the differential piston for sequentially opening the resistor contact after the opening of the main contact.

REFERENCES:
patent: 2877787 (1959-03-01), Brueder
patent: 3847059 (1974-11-01), Beck et al.
patent: 4343972 (1982-08-01), Bischofberger et al.
patent: 4716812 (1988-01-01), Koerner et al.
patent: 4785712 (1988-11-01), Yoshizumi et al.
patent: 4838145 (1989-06-01), Slocum et al.
patent: 5195864 (1993-03-01), Drake et al.

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