Hioki PW3336-01 - Page 168

5.5 Calculation Formulas Specifications
162
1. Vector calculations for 3P3W2M
2. Vector calculations for 3P3W3M
However, to align with current channels, and are displayed as and , respectively.
3P3W2M
Calculation formulas for 3 channels
calculations using vector calculation
i
(2)
三相３線電源側 三相３線負荷側
u
(3)
u
(1)
u
(2)
i
(1)
i
(3)
1
23
3-phase/3-wire load3-phase/3-wire
power supply
)1()2()3(
uuu
•••
= −
)2()1()3(
iii
•••
= −−
3P3W3M
Calculation formulas for phase voltage
calculation using vector calculation
(Voltage used in other calculations)
u
(3)
u
(3 )
'
u
(1)
'
u
(2)
'
u
(1)
u
(2)
三相３線Δ結線 (3V3A結線) 三相３線Ｙ結線
1
23
3-phase/3-wire Y wiring3-phase/3-wire Δ wiring (3V3A wiring)
)uu(
3
1
'u
)3()1(
)1(
•••
= −
)uu(
3
1
'u
)2()1()2(
•••
= ＋−
)uu(
3
1
'u
)3()2(
)3(
•••
= ＋
'u
3
•
'u
2
•
2
U
3
U