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OM 2012
5.
A.
Disccnnect
generator
stc;tor leads at the power module pane!.
B.
Disconnect
exciter
ieads from tenninai
board mounted cn rcar,c,f engine contrc!
panel.
Positive
/cad is PED.
Negative
lead is YELLOW-BLACK.
.
C.
Check resistances
and compare to
values
given
in fig.
14.
t
TEST
CONNECTION
NOMNAL
RESiSTANCE
fN WfMS
.._I---.
-.
GENERATOR
STATOR
.
_I- 7
Phase A to N
'
0.00827
Phase
B to
N
*
0.00835
Phase C to N
0.00840
NOTE:
The two leads of a phase must be connected
when test is made.
.-
EXCJTER
A-B,
B-C,
A-C
0.1
Field
(RED to YELLOW
BLACK)
7.23
L
Generator
and Exciter
Stator
Test
Values
(700 F Ambient
Temperature)
Figure
14
6.
Diode
Test
Test values
for diodes
are not given here because they could be misleading.
Test values
may vary even between
diodes of the same part number,
rating,
and manufacturer.
General
instructions
for testing
diodes follow:
A.
Disconnect
diode
lead(s).
Au g 25 '85
2,3
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