Hioki 3197 - Page 169

8.5 Calculation Formulas
161
8
Fundamental
waveform
Voltage phase
an
gle
*2
φ U
[deg]
φ U
1(1)
φ U
1(1)
φ U
2(1)
φ U
1(1)
φ U
2(1)
φ U
3(1)
Fundamental
waveform
Current phase
an
gle
*2
φ I
[deg]
φ I
1(1)
φ I
1(1)
φ I
2(1)
φ I
1(1)
φ I
2(1)
φ I
3(1)
Wiring
Configuration
Parameter
Single-
Phase
2-Wire
Single-Phase
3-Wire
Three-phase, 3-wire
Three-Phase
4-Wire
1P2W 1P3W 3P3W2M 3P3W3M
3P4W,
3P4W2.5E
*1. The phase value from the virtual neutral point is used to calculate Pk and Qk for 3P3W3M.
*2. Phase angles of the fundamental voltage and current waveforms are calculated using only the
first-order calculated harmonic, and are displayed by normalizing fundamental waveform U1 to
0°.
φ U
c1()
U
r
U
i
–
---------


1–
tan=
φ I
c1()
I
r
I
i
–
------


1–
tan=