Uninterruptible power supply system

Details Uninterruptible power supply system Uninterruptible power supply system

1988-04-18

1989-05-02

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

290 4R, 290 52, 322 9, 307 67, H02J 906

Patent

active

048271527

ABSTRACT:
An uninterruptible rotating power supply incorporates a sensor of motion and distortion of a stator during interruptions of normal power supply acting on the stator within a synchronous motor, which normally rotates an alternator supplying power to the electric load. When a distortion (unacceptable normal power supply) is sensed, transient power is supplied by a flywheel and hydraulic motor driven by hydraulic fluid stored under pressure in a reservoir. Long term emergency power is supplied by a diesel engine driving the generator or hydraulic pump. The dual supply of transient power allows redundancy for large amperage critical applications or downsizing of flywheel to minimum levels in less critical applications or where a portion of the load is not critical.

REFERENCES:
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patent: 3665495 (1972-05-01), Carter et al.
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patent: 4203041 (1980-05-01), Sachs
patent: 4439720 (1984-03-01), Georges
patent: 4525661 (1985-06-01), Mucsy et al.

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