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25
7-3
MEASURING INSULATION RESISTANCE
Use a megger tester to check the insulation
resistance. Connect a megger tester to one
of receptacle output terminals and the ground
terminal, then measure the insulation resis-
tance.
An insulation resistance of 1M or more is
normal.
If it is less than 1M , disassemble the gen-
erator and measure the insulation resistance
of the stator, rotor and control panel individu-
ally.
STATOR
(1) Measure the insulation resistance
between BLUE (RGV12100),
GREEN (RGV13100T) lead and the core.
(2) Measure the insulation resistance
between WHITE lead and the core.
(3) Measure the insulation resistance
between BLACK lead and the core.
(4) Measure the insulation resistance
between RED lead and the core.
120 V 208 V 240 V
RGV12100 112V
-
128V -------------- 224V
-
256V
RGV13100T -------------- 218V
-
249V --------------
Voltage range
Model
Rated voltage