Greatly prolonged period non-interruptible power supply system

Details Greatly prolonged period non-interruptible power supply system Greatly prolonged period non-interruptible power supply system

H - Electricity

02

P

322/3

H02P 9/02 (2006.01) H02J 9/06 (2006.01) H02K 7/02 (2006.01)

Patent

CA 1177888

ABSTRACT OF THE DISCLOSURE This invention relates to a power supply system having the capability of furnishing to a load sensitive to electrical faults and interruptions, electrical power for prolonged periods of time after a utility or other external power supply source thereto is interrupted. The system comprises a main A.C. generator furnish- ing A.C. potential at a selected frequency and a selected voltage to the sensitive load, an auxiliary A.C. generator connected oper- atively thereto and a driving means for the generators energized with electricity from the external power supply source which is subject to outages and faults. The auxiliary generator generates A.C. potential at a much higher frequency than from the main A.C. generator and this higher frequency A.C. is supplied to a high speed A.C. induction motor and a flywheel unit in a sealed chamber, which unit can store large amounts of kinetic energy at full speed. Upon interruption of electricity from the utility or other exter- nal power source, the high speed A.C. induction motor in the sealed casing will function as a generator and feed back A.C. potential to the auxiliary generator which begins to operate as a motor and drives the main A.C. generator. A relatively small A.C. motor and fly- wheel unit can store and supply power to keep the main A.C. gener- ator operating for from 1 to 20 minutes so as to ride out practi- cally all reasonably expected power line outages. Particularly good results are obtained if the main A.C. generator is the Roesel generator of U.S. patent 4,168,459.

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