Electrical transmission or interconnection systems – Plural supply circuits or sources – Substitute or emergency source
Patent
1998-02-11
1999-08-17
Paladini, Albert W.
Electrical transmission or interconnection systems
Plural supply circuits or sources
Substitute or emergency source
307 73, 454 72, 244 53R, H02J 906
Patent
active
059398000
ABSTRACT:
An electrical power system for an aircraft includes an ac generator bus, an air conditioning system ("ACS") generator and a main engine generator. The ACS generator supplies primary ac power to the bus while the frequency of the ac power is within a frequency range. If the frequency of the ac power goes outside the frequency range, the main engine generator supplies backup ac power to the bus. The frequency of the ac power generated the ACS generator is maintained between upper and lower limits. Such ac power can be used directly by certain ac loads onboard the aircraft. Other ac loads onboard the aircraft are supplied with fixed frequency ac power by reduced-size inverters.
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USSN 08/987,737 filed on Dec. 9, 1997 and entitled Environmental Control System including Air Cycle Machine and Electrical Machine.
Artinian Vatche
Brim Terry
Matulich Dan
Murry Roger
Allied-Signal Inc.
Desmond, Esq Robert
Paladini Albert W.
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