Hitachi SJ100 SERIES Service Manual page 35

Table 7-1 Measuring Instruments
Item
Supply voltage E
L1-L2
E1
Supply current I , I
L1 L2
I1
Supply power W and W
11
W1
Supply power Calculate from above measured values E1, I1 and W1
Factor Pf1
1
Pf
Output voltage E , E
U-V
Eo
Output current I , I
U V
Io
Output power W and W
O1
Wo
Output power Calculate from above measured values Eo, Io and Wo
factor Pf2
Pf 1
NOTE : Use a meter indicating a fundamental wave effective value for voltage, and meters indicating
total effective values for current and power.
Instruments
, E and E
L2-L3 L3-L1
and I
L3
12
W
1
100 (%)
3 E I
1 1
and E
V-W W-U
and I
W
O2
W
O
100(%)
3 E I
O O
Type of Instrument
Moving iron type voltmeter or
Rectifier type voltmeter
Moving iron type ammeter
Electrodynamics wattmeter
According to Fig.7-1 and Fig.7-2
Moving iron type ammeter
Electrodynamics wattmeter
7-3
Remarks
Fundamental wave
effective value
Total effective value
Total effective value
Total effective value
Total effective value
Total effective value