AVR
4-9. CHECKING
A.V.R.
(AUTOMATIC VOLTAGE REGULATOR)
1) Features
This A.V.R. operates to control the field
current in order to maintain the output
voltage for the AC current, which generated
by the magnetic flux by the field coil.
2) A.V.R. trouble may be identified by simply
looking at the A.V.R., or by the inter-lead
resistance with a tester, or actually
mounting it in the generator and operating
it.
Replace the case where the resistance is
significantly deviated from the measured new
one.
(
Ω
)(R
±
20%)
CIRCUIT TESTER
TESTER POLARITY
‘
-
’
(
Ω
)
White(a)
Red(b)
Green
①
White
②
Blue
③
Blue
④
TESTER
POLARITY
‘
+
’
(
Ω
)
White(a)
-
2.1M
5.0M
5.1M
4.2M
4.2M
Red(b)
1.8M
-
2.2M
2.2M
1.9M
1.9M
Green
①
4.6M
2.2M
-
4.9M
4.7M
4.7M
White
②
4.6M
2.2M
5.1M
-
4.6M
4.6M
Blue
③
4.0M
1.7M
4.5M
4.5M
-
4.0M
Blue
④
4.2M
1.7M
4.7M
4.7M
4.2M
-
49
Summary of Contents for EZ6500CXS
Page 1: ......
Page 10: ...L LB Type AC EXTERNAL CHARACTERISTIC CURVES S SB Type AC EXTERNAL CHARACTERISTIC CURVES 10 ...
Page 11: ...LS Type AC EXTERNAL CHARACTERISTIC CURVES 11 ...
Page 44: ...4 4 ALTERNATING CURRENT VOLTAGE IS OV 44 ...
Page 51: ...4 11 WIRING DIAGRAM R S K Type 51 ...
Page 52: ...RK LS MK Type 52 ...
Page 53: ...REH CL Type 53 ...
Page 54: ...M Type 54 ...
Page 55: ...SB LB Type 55 ...
Page 56: ...L Type 56 ...
Page 57: ...62EAB00 2019 Sep ...