Engine-driven power generating system

Details Engine-driven power generating system Engine-driven power generating system

1991-05-29

1993-03-16

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Generator protective circuits

361 24, 361 25, 361 82, 361 84, H02H 706

Patent

active

051950073

ABSTRACT:
An engine-driven power generating system comprising a bridge circuit section in which a low-frequency switching elements driven alternately by low-frequency drive signals, and high-frequency switching elements driven by high-frequency drive signals during the ON period of the low-frequency switching elements are connected in a bridge network, and an inverter circuit section having a drive signal supply circuit for supplying low-frequency and high-frequency drive signals are each supplied to the low-frequency and high-frequency switching elements that form a pair; the a-c voltage generated by an engine-driven a-c generator is converted into d-c voltage that is in turn converted into a predetermined level of low-frequency a-c voltage; characterized in that an emergency relay circuit device for protecting the engine-driven power generating system against abnormal operating condition.

REFERENCES:
patent: 4833563 (1989-05-01), Russell
patent: 4956741 (1990-09-01), Murphy et al.

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