Electricity: motive power systems – Motor-reversing – Armature or primary circuit control
Patent
1977-01-04
1978-09-19
Rubinson, Gene Z.
Electricity: motive power systems
Motor-reversing
Armature or primary circuit control
H02P 320
Patent
active
041157273
ABSTRACT:
A braking system for three phase motors without an accessible neutral terminal comprising a current limiting motion detection circuit that is energized when the motor is energized or is being supplied with braking current as long as the rotor is in motion, a DC braking circuit, and a control circuit actuated by a stop command that disconnects the source from the motor and supplies braking current until the rotor comes to a stop. A ferroresonant motion detection circuit is disclosed that is also useful in braking systems for other motor types.
REFERENCES:
patent: 2818539 (1957-12-01), Johnson
patent: 2929977 (1960-03-01), Choudhury
patent: 3486097 (1969-12-01), Shekro
patent: 3809979 (1974-05-01), Zarth
Ericson John W.
Rubinson Gene Z.
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