T-45C TS, ADV & IUT ENG-02
Electrical System
(4) The C AUG caution light does not illuminate
(5) The F PRES caution light does not
illuminate
NOTE: If the generator continues to
operate at less voltage than the batteries,
then the battery voltage will drop until it
matches the generator voltage.
c.
Generator reset: may be attempted by
generator switch (RESET) and generator
brought back on-line if failure is transient
2.
Battery failure: battery voltage of approximately
Overlay 3
17 VDC is required to reset the generator should it
Battery Failure
be tripped off-line
3.
Undervoltage unit failure (likely caused by a circuit
Overlay 4
breaker failure)
Undervoltage Unit
Failure
a.
No indication of failure on CWS
b.
26 and 115 VAC non-essential buses will not be
shed
c.
Indications of 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 when operating in an undervoltage
condition unless manually secured. An
undervoltage condition of less than normal
battery voltage will discharge the batteries.
Page 2-15
Change 4 (9-98)
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