8-1-2
INSTRUMENTS
(1)
VOLTMETER
AC voltmeter
is
necessary.The approximate
AC voltage ranges
of
the
voltmeters to be
used for various types
of
generators are as
follows:
0
to 15OV: Type with an output voltage
of
110
or
120V
0
to 300V: Type with an output voltage
of
220,230 or 240V
0
to 15OV,
0
to 330V: Dual voltage type
(2)
AMMETER
AC ammeter
is
necessary. An AC ammeter
with a range. that can be changed according to
the current rating of a given generator
is
most
desirable. (About 10A, 20A, 100A)
FREQUENCY METER
Frequency range
:
About
45
to
65Hz
NOTE:
Be careful of the frequency
input voltage range.
meter’s
.-
””-
I
FOR
AC
Fig.
8-2
FOR
AC
Fig.
8-3
.,
r
I
!
Fig.
8-4
-
33
-
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