Hawker 800 XP, Pilot Training Manual

Page: 132 / 504

DC POWER
BATTERIES
Two types of batteries may be used:
• 24 VDC, 23 ampere-hour nickel-cadium
or
• 24 VDC, 25 ampere-hour lead-acid.
Located in the rear equipment bay(Figure 2-4).
There are separate emergency power packs
(batteries) for avionics and standby instru-
ments. Their ratings depend on avionics and in-
strument requirements. For the main batteries,
high-temperature warning annunciators are
provided in the flight compartment.
The avionics emergency battery powers selected
avionics equipment during a total DC power
failure. The equipment selected varies between
completion centers; however, all installations
supply adequate emergency power to the avionic
equipment needed for safe landing.
The main batteries maintain DC power to the PE
bus bar in the event all generated power fails. The
main batteries are also used as an internal power
source for engine starting. Start control circuits
are supplied from the main batteries via the PE
bus bar (See Figure 2-5).
Electrical controls, indicators, and compo-
nent locations are shown in Table 2-1.
Aircraft with lead-acid batteries do not have
the following annunciators:
• BATT HOT
• BATT OVHT
Revision 1.02 2-4
FOR TRAINING PURPOSES ONLY
HAWKER 800 XP PILOT TRAINING MANUAL
FlightSafety
international
ITEM LOCATION
BATTERY OFF/ON/EMERG switch Electrical section of roof panel
BATTery ISOLATE switch
EXT POWER ON/OFF switch
BATT 1 CNTCTR annunciator
BATT 2 CNTCTR annunciator
EXTernal BATTery CHG ON/OFF switch
BATT HOT annunciator
BATT O/HEAT annunciator
GEN (1 or 2) FAIL annunciator
BUS TIE OPEN annunciator
Voltmeter
Ammeter
BAIT AMPS and 0-40 pushbuttons
Voltmeter selector switch
START PWR annunciator switch
ENGINE START section of roof panel
STARTER annunciator switches,
ENG 1 and ENG 2
Battery temperature indicator
Center pedestal
Table 2-1. ELECTRICAL COMPONENT LISTING
Figure 2-4. Battery Locations