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Electro Industries/GaugeTech
Doc # E107706 V1.25 2-9
Q
Phase Angles:
Q
% 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
Q
K Factor: x = I
A
, I
B
, I
C
Q
Watt hour (Wh):
Q
VAR hour (VARh):
)(cos
1
PF
−
=∠
1
127
2
2
)(
x
h
x
RMS
RMS
THD
h
∑
=
=
∑
∑
=
=
•
=
127
1
2
127
1
2
)(
)(
h
x
h
x
h
h
RMS
RMSh
KFactor
∑
=
=
n
t
hr
tT
W
Wh
1
sec/
)(
3600
∑
=
=
n
t
hr
tT
VAR
VARh
1
sec/
)(
3600