Electrical transmission or interconnection systems – Plural supply circuits or sources – Connecting or disconnecting
Reexamination Certificate
2011-06-28
2011-06-28
Fureman, Jared J (Department: 2836)
Electrical transmission or interconnection systems
Plural supply circuits or sources
Connecting or disconnecting
C307S044000, C307S047000, C307S068000, C307S084000, C307S085000, C322S044000, C322S089000
Reexamination Certificate
active
07969044
ABSTRACT:
A power distribution system is provided for supplying power to a variable speed motor for rotating a shaft. The system comprises a variable speed prime mover adapted to generate an A/C output having a variable frequency corresponding to the speed of the prime mover, a power switch, a power distribution bus connected to the A/C output of the prime mover and connected, via the switch, to the motor such that the motor's speed is varied relative to the frequency of the A/C output, and a variable frequency drive operatively connected to the A/C output of the prime mover via the bus and effective to provide an alternate A/C output to the motor after the motor is disconnected from the bus. The switch is adapted to disconnect the motor from the bus when the prime mover's speed is equal to or within a predetermined range of the prime mover's speed limit.
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International Search Report dated Mar. 27, 2009 corresponding to PCT/US09/31181.
Armstrong Richard
Thaxton Edward
DRS Power Technology Inc.
Fureman Jared J
Kaplan Hal I
SNR Denton US LLP
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