SmartCockpit Dash8 - Page 27

Figure 12.5-15 DC Power System Battery Power Only
RIGHT ESSENTIAL
EPCU
STBY
BATTERY
BATTERY
BUS
AUX
BATTERY
MAIN
BATTERY
EXT
PWR
L MAIN
DIST BUS
R MAIN
FEEDER BUS
LEFT ESSENTIAL
BATTERY
MASTER
AUX
BATT
MAIN BATT
GCU GCU
#1 DC
GEN
#1 DC
GEN
#2 DC
GEN
L SEC
FEEDER BUS
R SEC
FEEDER BUS
L TRU
#2 DC
GEN
MAIN
BATTERY
#1 DC GEN
R TRU
#2 DC GEN
L TRU
STBY
BATTERY
AUX
BATTERY
NORMAL OPERATION: BEFORE START BATTERY MASTER SWITCH - ON MAIN BATTERY - ON AUX BATTERY - ON STBY BATTERY - ON GEN1 AND GEN2 SWITCHES - ON MAIN BUS TIE SWITCH - TIE
R MAIN
DIST BUS
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
STBY BATT
MAIN BUS
TIE
R TRU
R SEC
DIST BUS
L SEC
DIST BUS
L MAIN
FEEDER BUS
Dash8 - Q400 - Electrical
Page 27