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8-2 AC OUTPUT MEASURING
TO
Use a circuit like the one shown in Fig. 8-7 for measuring AC output. A hot plate or lamp with a power factor of 1.0 may
be used as a load. Adjust the load and rpm, and check that the voltage range is as specified in Table 8-1 at the rated amperage
and rated rpm.
I
I
Rated voltage 1
11ov I
12OV
220 v
230v 1
240v
Voltage range
! 108-115V 118%125V
218 - 225 V
228 - 235 V
238 - 245 V
8-3 DC OUTPUT MEASURING
Table 8- 1
00
SWITCH
@
LOAD
@
DC TERMINAL
Fig. 8-8
Switch the power on, when 1.45R resistance attached as a load, check that the voltage is within the range of 13 to 11V.
NOTE: If a battery is connected as the load, the output voltage increases by about I to ZV, possibly causing battery over-
charge. Control battery liquid level during charging to prevent overcharging.
84 MEASURING INSULATION RESISTANCE
Connect a megger tester to one of the two receptable output
terminals and the ground terminal, then measure the insula-
tion resistance. An insulation resistance of 1 megohms or
more is normal. (The original insulation resistance at the
time of shipment from the factory is 10 megohms or more.)
If it is less than 1 megohm, disassemble the generator and
measure the insulation resistance of the stator, rotor and
control box individually.
Fig. 8-9
-34-