Electrical Power Generation
Engine Generators
Primary power is obtained from two engine IDGs. The IDG maintains a constant
generator speed throughout the normal operating range of the engine. An
integral electro–mechanical disconnect device provides for complete
mechanical isolation of the IDG.
APU Generator
The APU generator can supply power to both AC transfer busses on the ground
or in flight. As the only power source, the APU generator can meet electrical
power requirements for all ground conditions and most flight conditions.
External Ground Power
An external AC power receptacle located near the nose gear wheel well, on the
lower right side of the fuselage, allows the use of an external power source.
Status lights on a panel adjacent to the receptacle permit the ground crew to
determine if external power is being used. When connected, external power can
supply power to both transfer busses.
Engine Generators
Primary power is obtained from two engine IDGs. The IDG maintains a constant
generator speed throughout the normal operating range of the engine. An
integral electro–mechanical disconnect device provides for complete
mechanical isolation of the IDG.
APU Generator
The APU generator can supply power to both AC transfer busses on the ground
or in flight. As the only power source, the APU generator can meet electrical
power requirements for all ground conditions and most flight conditions.
External Ground Power
An external AC power receptacle located near the nose gear wheel well, on the
lower right side of the fuselage, allows the use of an external power source.
Status lights on a panel adjacent to the receptacle permit the ground crew to
determine if external power is being used. When connected, external power can
supply power to both transfer busses.
