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Measurements on Three-Phase Circuits (cont'd)
3ø4W
R (L1)
S (L2)
T (L3)
N
Calculations
When using the 3ø3W and 3ø4W functions of the CMP-200, the unit automatically performs
the following calculations:
Single-Phase
W
= W
1Ø3W
L1L2N
Three-Phase Three-Wire
W
= W
+ W
3Ø3W
RS
KVAR
= KVAR
3Ø3W
RS
KVA
=
[KW
3Ø3W
PF
= KW
3Ø3W
3Ø3W
KVA
3Ø3W
Three-Phase Four-Wire
W
= W
+ W
3Ø4W
R
KVAR
= KVAR
3Ø4W
R
KVA
=
[KW
3Ø4W
PF
= KW
3Ø4W
3Ø4W
KVA
3Ø4W
20
W
T (L3)
A
= W
+ W
L1N
L2N
TS
+ KVAR
TS
2
2
]
+ [KVAR
]
3Ø3W
3Ø3W
+ W
S
T
+ KVAR
+ KVAR
S
T
2
2
]
+ [KVAR
]
3Ø4W
3Ø4W
3ø
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