Electrical Flashcards
Each engine driven generator can supply up to 90kva of AC power whereas the Emergency generator (blue hydraulic RAT) can supply up to:
5kva
When a monitored (— —-) circuit breaker is out for more than 1 minute an ECAM warning C/B TRIPPED is triggered.
Green
GEN 1 and 2 when operating have priority over the APU generator and external power. T or F
True
External power has priority over the APU generator when the EXT PWR pb switch is on. T or F?
True
When they are fully charged the Battery Charge Limiter disconnects the ——— from the DC BAT BUS.
Batteries
The system automatically replaces the failed generator with the:
APU generator if available, or the other engine generator.
Part of the Galley load is shed during:
Single generator operations
During Emergency Generation after loss of all main generators, below 125kt the emergency generator is
No longer powered. The emergency generation network is automatically transferred to the batteries and AC SHED ESS and DC SHED ESS BUS are shed.
During RAT extension and emergency power coupling (— seconds) the ———— power the emergency generation network.
8 seconds
Batteries
The smoke configuration procedure sheds approximately —% of electrical equipment. All equipment that remains powered is supplied via the circuit breakers on the overhead panel.
75%
Maintaining the IDG PB-Switch more than —seconds may damage the disconnection mechanism.
3 seconds
During the Preliminary Cockpit Preparation Battery Check/Setup, if the aircraft has not been electrically supplied for 6 hours or more the battery voltages must be checked by selecting BAT 1 and 2 PB’s to off and checking the voltages are above:
25.5 V (ensures a charge above 50%).
If the battery voltage is at or below 25.5 a charging cycle of about 20 minutes is required.
