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Phase Angles:
X = A, B, C
∠
cos
=
X
% Total Harmonic Distortion (%THD):
For Wye: X = V AN , V BN , V CN , I A , I B , I C
For Delta: X = I A , I B , I C , V AB , V BC , V CA
THD
=
X
K Factor:
X = I A , I B , I C
KFactor
Voltage Imbalance:
Imb
=
RMS
V
Current Imbalance:
Imb
=
RMS
I
Electro Industries/GaugeTech
(
)
−
1
PF
X
(
)
127
2
∑
RMS
X
h
h
=
2
RMS
X
1
(
127
∑
h RMS
i
=
h
=
1
X
(
127
∑
RMS
X
h
=
1
(
∑
v v v
+
+
an
bn
n
n
RMS
+
V
V
AN
BN
RMS
I
CalcN
RMS
+
+
I
I
A
B
Doc # E151701
)
2
X
h
)
2
h
)
2
cn
RMS
+
V
CN
RMS
I
C
13-5
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