TM 55-1730-229-12
TO 35C2-3-473-1
Switch 1S2 also grounds control
(2) The DC electrical and control
panel BATTERY VOLTAGE
meter 1M4
system includes the master DC power
which indicates battery voltage.
control; lights control; and the
electrical control portions of the
(2) When the MASTER SWITCH is on
GTE (gas turbine engine), fuel, and
and other switches are in the
pneumatic systems.
proper positions for engine start,
NOTE
the GTE control circuits activate
starter contactor K4 (see FO-3).
The control panel controls
Battery power is then applied via
and
instruments
associated
starter shunt R2 and contactor K4
with
these
systems
are
to engine starter motor MG1. The
described with this section.
current through the starter shunt
Maintenance of the control
is indicated on the control panel
panel
controls
and
STARTER CURRENT meter 1M5 (FO-1).
instruments is provided in
Contactor K4 is deactivated when
section XVII.
engine speed reaches 60%.
a. Master DC Power Control System.
NOTE
(See Fig. FO-1.) The master DC power
On
the
83-360D,
the
control system includes, the battery,
slave
receptacle
J19,
battery
generator
output
is
output/traction motor, contactor K3,
provided directly to the
TRU at the line side of
DC output shunt R1, starter shunt R2,
the ac contactor. The TRU
battery charge/discharge shunt R3,
output is then connected
battery charger transfer relay 3K3,
to the battery charger and
battery
charger,
charger
input
controls as described in
circuit
breakers
2CB1
and
2CB2,
the rest of this section.
charger output select switch 3S1,
resistors (R4 and TB3-R1), associated
(3) When engine speed reaches
control
panel
switches
and
95%, the generator provides a 28
instruments.
vdc output.
The generator DC
output is applied via circuit
(1)
Battery
power
is
applied
breaker
2CB1
to
the
battery
directly to slave receptacle J19.
charger 50 amp section and via
Battery power is applied via shunt
2CB2
to
the
charger
20
amp
R3, battery/charger transfer relay
section.
The
charger
50
amps
3K3, diode TB3-CR5P, and resistor
section
supplies
and
output
TB3-R1 to illuminate CHRG/BAT FAULT
regulated at 28.5, 30.5, or 32 vdc
light 1DS7. Battery power is also
(1 vdc), as selected by charger
applied
via
shunt
R3
to
the
output select switch 3S1. The
propulsion system (section XVIII).
charger 20 amp selection supplies
All other battery and charger power
a 22 to 32 vdc output. The 20 amp
is controlled by the control panel
output activates battery/charger
MASTER SWITCH 1S2. When switch 1S2 is
transfer
relay
3K3.
When
turned on, battery power is applied
activated,
relay
3K3
removes
via shunt R3, relay 3K3, and 1S2 to
battery power from the dc control
control panel circuit breakers 1CB1
circuits and applies the 20 amps
and 1CB2, and to the hydraulic system
section output to the control
(section XV). GTE circuit breaker
circuits. Relay 3K3 also removes
1CB2 controls dc power to the GTE
battery power from the CHRG/BAT
control system, and LIGHTS circuit
FAULT light. The charger 50 amp
breaker 1CB1 controls dc power to the
output section is used to charge
lights, fuel system and pneumatic
the battery. If the battery charge
The current through
rate is less than 50
milliamps,
shunt R3 is indicated on control
the charger a 28 vdc signal diode
panel BATTERY CHG/DISCH meter 1M6.
