Innis Cunningham wrote: > > I would have thought that the AC power sources, engine,apu and external, > would all appear the same to the electrical system.AC power from the engine > and apu driven generators is not available till the power is of the > correct quality > I.E 115/200v 400hz.So I would have thought that the only propery you would > need is engine running "true"
yes 115V at 400Hz is correct. the other property is, for the engines, if the generators are not disconnected (via the Generator Drive Disconnect Switch in the Standby Panel). > The thing to remember with the apu is that electrical power supply is only > half its function the other half being to supply bleed air to power such > thing as airconditioning and main engine start. > Also the apu engine on a lot of large commercial aircraft are modified > versions > of turboprop engines from small commuter aircraft. > afaik the 737-300 is using a Garrett 85-129. the other properties needed are the current alititude: - up to FL10: APU Bleed + Electrical load - up to FL17: APU Bleed only - up to FL35: Electrical load cu Markus -- Markus Barenhoff - phone: +49-40-39991368 - cell: +49-173-7215776 Stellinger Chaussee 26c - D-22529 Hamburg - Germany - Earth url: http://www.alios.org/ - mail: [EMAIL PROTECTED] pgpkey: 0xAE7C7759 fp: 79 64 AA D9 B7 16 F5 06 6A 88 5F A9 4D 49 45 BB
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