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Oct 05/06
The generators are controlled by two-position GEN 1 or GEN 2 switches, located on the ELECTRICAL POWER panel. Selecting GEN 1 or GEN 2 switch to ON connects the respective generator to the main AC buses, provided they are operating normally. Selecting the switches to OFF/RESET will disconnect the respective generator from the main AC buses. The OFF/RESET position can also be used to reset the generator control circuit when a fault occurs.
Generator Control Unit
Each IDG is controlled and monitored by its respective generator control unit (GCU). The GCUs provide protection and bus priority logic during normal and non-normal operations. The engine generator is tripped off and removed from the AC buses if any of the following conditions occur:
.
Over-and undervoltage;
.
Over-and underfrequency; or
.
Generator and bus overcurrent.
ELECTRICAL Description Vol. 2 07.10.5
Oct 05/06
GEN 1 and GEN 2 Power Figure 07.10.4
APU Generator
The APU generator supplies 115-volt AC, 400-Hz, three-phase electrical power to the AC buses during ground operations with the engines off. The APU generator may also be used in flight as a backup power source to the AC buses following a failure of both engine generators. The APU generator is mounted on the APU generator adapter, and is driven at a constant speed, maintaining its frequency output at 400 Hz.
The APU generator is identified on the AC ELECTRICAL synoptic page by the symbol GEN above the APU icon (see Figure 07.10.5). The nominal rating of the APU generator is 30 kVA from sea level up to the APU’s maximum operating altitude of 20,000 feet MSL.
ELECTRICAL Description Vol. 2 07.10.6
Oct 05/06
The two-position APU GEN switch, located on the ELECTRICAL POWER panel, controls the APU generator. Selecting the APU GEN switch to ON connects the APU generator to the main AC buses, providing it is operating normally. Selecting the switch to OFF/RESET disconnects the APU generator from the main AC buses. The OFF/RESET position can also be used to reset the generator control circuit when a fault occurs.
NOTE
Use of the APU generator in flight is permitted when one main generator has failed or is off-line.
Generator Control Unit
The APU generator is controlled and monitored by the APU generator control unit (GCU). The APU GCU, in conjunction with the engine GCUs, provide protection and bus priority logic during normal and non-normal operations. The APU GENERATOR is tripped off and removed from the AC buses if any of the following conditions occur:
.
Over-and undervoltage;
.
Over-and underfrequency; or
.
Generator and bus overcurrent.
ELECTRICAL Description Vol. 2 07.10.7
Oct 05/06
中国公务机网 www.gongwuji.com
公务机翻译 www.aviation.cn
本文链接地址：庞巴迪挑战者605公务机机组操作手册 CL605-电气 COMMUNICATIONS(4)
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