Remote Racking of Horizontally Displaceable Circuit Breakers
OwnerRobert L. Stevensoninventor
Life of this patent
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Abstract
A system for remotely racking a horizontally movable circuit breaker includes a motor as well as a transmission connectible to the motor and to a racking screw for moving the circuit breaker. The system further includes a mounting bracket for holding the transmission and a controller for controlling the motor from a location remote from the circuit breaker.
Claims22
A system for remotely displacing a circuit breaker of a selected type of electrical switchgear having a selected drive member arranged to displace the circuit breaker in accordance with predetermined displacement parameters, said system comprising:
- a motor for driving the drive member;
- a force-transmitting member releasably connectible with said motor, said force-transmitting member being of a selected type adapted to engage the selected drive member so as to transmit force thereto and adapted to remain in engagement with the selected drive member throughout at least the major part of the range of displacement of the circuit breaker, and said force-transmitting member being provided with an identifying element for generating a signal identifying said force-transmitting member as being of said selected type of force-transmitting member;
- a mounting member for mounting said force-transmitting member in a position to engage and transmit force to the selected drive member;
- and
- a control unit responsive to said signal and programmed with the predetermined displacement parameters for the circuit breaker, said control unit being adapted to cause said motor to drive said force-transmitting member based on the predetermined displacement parameters for the circuit breaker.
Electrical switchgear comprising:
- a circuit breaker;
- a drive member arranged to displace said circuit breaker in accordance with predetermined displacement parameters;
- a motor for driving said drive member;
- a force-transmitting member releasably connectible with said motor, said force-transmitting member being of a selected type adapted to engage said drive member so as to transmit force thereto and adapted to remain in engagement with said drive member throughout at least the major part of the range of displacement of said circuit breaker, and said force-transmitting member being provided with an identifying element for generating a signal identifying said force-transmitting member as being of said selected type;
- a mounting member for mounting said force-transmitting member in a position to engage and transmit force to said drive member;
- and
- a control unit responsive to said signal and programmed with the predetermined displacement parameters for said circuit breaker, said control unit being adapted to cause said motor to drive said force-transmitting member based on said predetermined displacement parameters.
A method of displacing a circuit breaker which is movable by a drive member in accordance with predetermined displacement parameters, said method comprising the steps of:
- establishing a connection between said drive member and an additional member of a selected type adapted to drive said drive member;
- transmitting a signal from said additional member identifying said additional member as being of said selected type;
- sensing said signal;
- and
- automatically driving said additional member in response to said signal based on said predetermined displacement parameters.
Dependencies are inferred from the claim text.