Portable racking device with fixed anti-torque tang for drawout power circuit breakers
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United States of America Patent
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Dec 13, 2016
Issued Date -
N/A
app pub date -
Mar 26, 2013
filing date -
Mar 30, 2012
priority date (Note) -
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Abstract
A portable motorized device for remotely inserting or removing (racking) draw-out power circuit breakers. Many different designs of draw-out circuit breakers may be connected or disconnected from an energized bus by a human operator cranking a jack screw mechanism that is part of the breaker. The device herein described provides a portable, motorized device that can be hand-carried to the work location and affixed to the circuit breaker without the need of any modification to the breaker or its enclosure. The torque that is required to operate the breaker's racking mechanism is provided by an electrically powered gear motor. Attached to the output shaft of the gear motor is a socket that engages the circuit breaker racking screw. Anti-torque is provided by a portion of the portable racking device that engages the racking screw support frame.
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