Protective circuit for clutchless parallel generating system

Details Protective circuit for clutchless parallel generating system Protective circuit for clutchless parallel generating system

1982-05-17

1984-12-11

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Generator protective circuits

361 82, 361 84, 307 86, 307 20, 307 24, 322 20, 322 24, 322 25, 322 44, H02H 706

Patent

active

044881983

ABSTRACT:
An electrical distribution system has parallel connected generators powered by variable speed engines. Loads connected with each generator are interconnected through an electrical distribution bus. Constant speed drives have inputs connected with the engines and outputs directly connected with the generators. The connections between the constant speed drive outputs and the generators are characterized by the absence of overrunning clutches used in prior systems. An improved electrical protective circuit senses a flow of electrical power from the distribution bus to a generator, driving the generator as a motor. If the power flow to the generator is excessive, the bus tie breaker is opened disconnecting the generator from the bus.

REFERENCES:
patent: 2885569 (1959-05-01), Schuh et al.
patent: 3156828 (1964-11-01), Hopper Jr. et al.
patent: 3539868 (1970-11-01), Stevenson
patent: 3546533 (1970-12-01), Lydick
patent: 3697811 (1972-10-01), Little
patent: 3805161 (1974-04-01), Bayha et al.

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