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7-2 MEASUREMENT OF
AC OUTPUT
+ii+~~
To an AC Receptacle
Fig. 7-2
Measurement is executed with the circuit as shown in Fig. 7-2. An electric heater or an
incandescent lamp with a power factor of 1.0 is suitable as a load for the generator.
When the
AC output measured at the rated load and rated speed is confirmed to be within the voltage
range specified in the table below, the AC output is normal.
I
1
Rated voltage 1 1OOV 1
1lOV 120v I 220v 230V
240V
Voltage range
i 98~105V 108~115V~118~125V~218~~225V 228~235V 238~245V
73 MEASUREMENT OF DC OUTPUT
To a DC Receptacle
Fig. 73
Measurement of DC output is executed with the switch turned ON while the current is regulated
at 8.3A by adjusting the load to the generator.
If the voltage is within the range from 1OV to
14V, the voltage output is normal.
Note:
If a battery is connected as a load to the generator, the DC output voltage will increase
by approximately 1 to 2V.
Therefore, carefully observe the electrolyte level and don’t
overcharge the battery.
7-4 MEASUREMENT OF INSULATION RESISTANCE
7-4-l TO MEASURE INSULATION RESIST-
ANCE, CONNECT THE MEGGER TESTER
ACROSS EITHER ONE OF THE TWO OUTPUT
TERMINALS OF THE AC RECEPTACLE AND
THE EARTH TERMINAL.
Measurement
should be executed after the AC circuit
breaker is turned ON.
When the measured
insulation resistnace is over lMQ, it is normal
(or, over 1OMQ at the time of shipment).
When the measured insulation resistance is
below lMn, disassemble the generator and
measure the insulation resistances of the
stator, rotor, and control panel for each.
F&. 74-1
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