IPP-S Installation guide Digipower Inc.
2
1P3W installation Diagram
Notes:
1.
The figure Shows
110V / 220V
1P3W
power supply system used in
the
general household.
2.
N stand for Neutral, L1-N and L2-N are 110V, L1-L2 is 220V.
3.
C1, C2 detect power source. C3, C4 and C5, C6 and C7, C8 detect 220V. C9~C12 detect 110V.
4.
In the measurement of 1P3W power consumption, the N as the reference point, with two wattmeter measurement, measure
the voltage between L1-N with current L1, L2-N with current L2. C1 detects L1 current on L1-N, C2 detects L2 current on L2-N.
The rest C3, C4, or, C5, C6 or C7, C8 can be done in the same manner.
5.
The Formula and define of 1P3W synthesized as follows:
V
AVG
(Average voltage)=(V
1
+V
2
)
PF
EQ
(equivalent PF)=W
T
/VA
T
I
EQ
(equivalent current)=VA
T
/V
AVG
KWH
T
(TOTAL KWH)=KWH
1
+KWH
2
W
T
(TOTAL W)=W
1
+W
2
VA
T
(TOTAL VA)=VA
1
+VA
2
KVAH
T
(TOTAL KVAH)=KVAH
1
+KVAH
2
6.
C9, C11 detect L1 current on L1-N separately. C10, C12 detect L2 current on L2-N separately.
