T-45A UJPT, E2-C2, ADV, & IUT Eng-07
Electrical
b.
26 and 115 VAC nonessential buses
will not be shed
c.
Indications of an undervoltage sensing
unit failure
(1) BATTERY VOLTS meter on PWR
panel reads less than 25 VDC,
with no generator failure light
NOTE: With an undervoltage
sensing unit failure, the generator
will continue to operate in an
undervoltage condition unless
manually secured. An undervoltage
condition of less than normal battery
voltage will discharge the batteries
as batteries pick up the load.
(2) AC instruments become erratic or
fail as inverters lose adequate DC
voltage to operate; batteries be-
come drained
NOTE: Inverter failure will occur
at voltages of 16 +/- 1 VDC or less
and insufficient DC voltage will
preclude inverter reset.
4.
Single inverter failure
a.
AC INVERTER caution light illuminates
Overlay 5
(along with MSTR ALERT and caution
Single Inverter Failure
tone)
b.
GENERATOR warning light remains
off
c.
Nonessential AC services are lost
Page 7-14
(8-03) Original
Previous Page
