T-45C TS, ADV & IUT ENG-02
Electrical System
(2) AC instruments become erratic or fail as
inverters lose adequate DC voltage to
operate
NOTE: inverter failure will occur at voltages
of 21.5 VDC or less and insufficient DC
voltage will preclude inverter reset.
4.
Single inverter failure
Overlay 5
Single Inverter Failure
a.
AC INV caution light illuminates (along with
MASTER ALERT and caution tone)
b.
GENERATOR warning light remains off
c.
Non-essential AC services are lost
5.
Double inverter failure: indications same as single
Overlay 6
inverter loss, except all AC services are lost
Double Inverter
Failure
PROGRESS CHECK
Question 3 -- 1.4.4.2.1, 1.4.4.3
What are the indications of an undervoltage unit failure?
ANSWER: None, unless the generator actually begins to
produce low voltage. The inverters will fail when DC voltage
falls below 21.5 volts.
Question 4 -- 1.4.4.2.1, 1.4.4.3
What are the indications of a single inverter failure?
ANSWER: The AC INV caution light illuminates with
loss of the non-essential AC services.
Page 2-16
Change 4 (9-98)
Previous Page
