OPERATIONS MANUAL

Electrical
Battery Power Distribution:
MAIN B/C
DISABLE RELAY
APU B/C
DISABLE RELAY
GS AC
MAIN
B/C
G9
MAIN BAT
THERMO
SWITCH
AUTO
OFF
BAT
APU
B/C
APU
START
RELAY
APU BAT
THERMO
SWITCH
AUTO
OFF
BAT
MAIN
STANDBY
XFR RELAY
MAIN BAT
APU BAT
REMOTE ON/OFF (GND=OFF)
MAIN HOT BAT
K1
APU BAT
XFR RELAY
APU
START K2
RELAY
J9
APU HOT BAT
A7
APU BAT
A6
J8
K5
STATIC INV
MAIN
DC BUS 3
G6
E7
E8
E9
BCU 1
IRS DC L
IRS DC C
IRS DC R
A25
A
MAIN STANDBY AC
AC 3
AUTO
OFF BAT
K3
MAIN BAT
K4
J7
MAIN BAT
RELAY
BAT XFR
RELAY
BAT SWITCH
SINGLE TRU
OPERATION
RELAY
B
DC 3
DC VOLTAGE
SENSE
RELAY
B/C
BAT SWITCH
BCU
GS AC
IBVSU CAPT
IRS DC
SINGLE TRU
STATIC INV
XFR RELAY
BATTERY CHARGER
BATTERY SWITCH
BUS CONTROL UNIT
GROUND SERVICE BUS, AC (115V)
INSTRUMENT BUS VOLTAGE SENSE UNIT OF CAPTAIN
INERTIAL REFERENCE SYSTEM, DC POWER SUPPLY
ONLY ONE TRANSFORMER RECTIFIER UNIT IN USE
(REFERRING TO DC BUS 1, 2, 3, 4)
STATIC INVERTER (28V DC TO 115V AC)
TRANSFER RELAY
CONTROLLED
BY BCU 1 OR 2
CLOSED IF SINGLE TRU
DIODE
BATTERY (28V)
AUTO
OFF BAT
CONTROLLED
BY IBVSU CAPT
OPEN IF ON AC 1
BUS WITH AC (115V)
BUS WITH DC (28V)
CIRCUIT BREAKER (CB) ON P6 PANEL
AUTO
OFF
BAT
SWITCH ELEMENT OF
STANDBY POWER SELECTOR
REMOTE CONTROL CIRCUIT BREAKER (RCCB), CONTROLLED ON P6
DIAGRAM CONTINUATION; REFER TO PREVIOUS PAGE FOR CONNECTION
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