Method and apparatus for detecting prime mover start malfunction

Details Method and apparatus for detecting prime mover start malfunction Method and apparatus for detecting prime mover start malfunction

1988-11-02

1990-07-17

Jennings, Derek S.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Motor protective condition responsive circuits

322 29, 290 38R, 290 4R, H02H 500

Patent

active

049424939

ABSTRACT:
Generating systems are operable in a starting mode to provide motive power to a prime mover to bring it up to a self-sustaining condition. However, a malfunction in a component connected between the generating system and the prime mover or in the prime mover itself may cause a potentially damaging condition to arise. In order to overcome this problem, a system for detecting, for example, the failure of a prime mover to achieve a self-sustaining condition continuously senses speed and acceleration of the prime mover, determines a minimum acceleration during a particular speed range, compares the minimum acceleration to prime mover acceleration at a point outside of the speed range and develops a signal to indicate no ignition if the minimum acceleration is greater than the acceleration at the point outside of the speed range.

REFERENCES:
patent: 4288828 (1981-09-01), Kuntner et al.
patent: 4330743 (1982-05-01), Glennon
patent: 4481459 (1984-11-01), Mehl et al.
patent: 4661762 (1987-04-01), Baker
patent: 4841216 (1989-06-01), Okada et al.
D. E. Baker, "Link VSCF Starter/Generator Systems", SAE Technical Paper Series 871887, copyright 1987.

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