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OM 2012
!. Generator
operates
5 ing le ,phase
. Unbalanced
output
3-l
Page 34
.----
A . Sii rX?;:d <.I Fo::c in c ):c itcr
rcctificr
(CR2)
B.
0~217 o- shoe-ted exe iter
rota;' winding
(G2)
C. Open a- shorted
e>:cIter
fiaid
wi:,>dings
(L.2)
D. Open cr shorted
generator
rotor
windings
(Li)
4. An open M shcrt circuited
winding
in generctar
stator
(Gl)
4. Loose connect ion causing
h igh res is tance
3. Improper cr bloc&d
ventilation
:. Generator
stator
windings
short circuited
4. Loose connection
in output
circuit
1. Open or short circuited
stator
phase
rouble Shooting
Chart
(Sheet ;
Figure
9
B.
Use ollmr-rla!er to chick
far cpen
or shori.eb condition.
If cxc iteer
rotor
winding:
are goad,
~a-
cccd to sicp C.
C . Chock
fie Id rcs istcncc .
See
Sect.
2-3,
Fig.
14 f~
nHmal
va tues .
D . Check res;:tanse
with
ohmmater
to determine
if open or short
c ircu ited.
A.
Cheek stator
winding
r-es istances,
See Sect:
2-3,
Fig.
14 for nor-
mal values.
A.Check
ail
output connections
for loaeness.
Look far dis-
coloration
caused by heat.
Tighten
CT replace as required.
B . Check
for fore ign mater ia Is (rags
etc.)
blacking
air flow.
Pro-
vide.adequata
ventilation.
C. Check stator
windings.
See
Sect.
2-3,
Fig.
14.
A.Check
all
output connections.
Discolored
connectors
indicate
a locse connection.
Tighten
ar replace
as required.
B. Check stbtcc windings
in acccrd-
ante
with Sect.
2-3,
Para.
5.
Repair
or replace
as required.
ofl)
Aug 25&i
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