Method and apparatus used with AC motor for detecting unbalance

Details Method and apparatus used with AC motor for detecting unbalance Method and apparatus used with AC motor for detecting unbalance

1994-09-27

1996-08-06

Wysocki, Jonathan

Electricity: motive power systems

Positional servo systems

With stabilizing features

73462, G05B 501

Patent

active

055436986

ABSTRACT:
A method and apparatus used with a motor controller that detects load imbalance at a relatively low speed and, if the degree of load imbalance is greater than a predetermined acceptable maximum degree, produces an alarm signal that indicates an imbalanced load. If the degree of load imbalance is greater than the predetermined acceptable maximum value, the present invention may either attempt to rebalance the load or stops the motor until the balance can be manually adjusted.

REFERENCES:
patent: 3403538 (1968-10-01), Andrew et al.
patent: 3859564 (1975-01-01), Zulaski
patent: 4513464 (1985-04-01), Rettich et al.
patent: 5281956 (1994-01-01), Bashark
patent: 5325677 (1994-07-01), Payne et al.
patent: 5384696 (1995-01-01), Moran et al.
patent: 5448442 (1995-09-01), Farag

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