Slip detecting device for a prime mover

Details Slip detecting device for a prime mover Slip detecting device for a prime mover

1985-07-05

1987-09-29

Wong, Peter S.

Prime-mover dynamo plants

Traction

290 3, 180197, 318 52, 364426, 73507, B61C 1508

Patent

active

046970916

ABSTRACT:
A device for detecting when a driven apparatus has frozen and/or its prime mover coupling mechanism is slipping. The rotational speed of a voltage generating alternator which is also driven by the prime mover is detected and a corresponding speed signal is compared to a reference speed signal. The reference speed signal corresponds to a speed slightly lower than the idling speed of the prime mover. When the detected speed signal is lower than the reference speed signal, slippage in the prime mover coupling mechanism is presumed and a slippage signal is provided. The slippage signal is used to control the coupling mechanism to disengage the apparatus from the prime mover to prevent damage from occurring.

REFERENCES:
patent: 3117264 (1964-01-01), Smith
patent: 3560759 (1971-02-01), Buehler et al.
patent: 3657601 (1972-04-01), Darrow

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