Hioki 3197, Инструкция по эксплуатации

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8.5 Calculation Formulas
161
8
Fundamental
waveform
Voltage phase
angle
*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
angle
*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
c 1
( )
U
r
U
i
–
---------
 
 
1 –
tan =
φ
I
c 1
( )
I
r
I
i
–
------
 
 
1 –
tan =