e
Electro Industries/GaugeTech
Doc # E107706 V1.25 2-9
QPhase Angles:
Q% Total Harmonic Distortion (%THD):
For Wye: x = VAN, VBN, VCN, IA, IB, IC
For Delta: x = IA, IB, IC, VAB, VBC, VCA
QK Factor: x = IA, IB, IC
QWatt hour (Wh):
QVAR hour(VARh):
)(cos
1
PF
−
=∠
1
127
2
2
)(
x
hx
RMS
RMS
THD
h
∑
=
=
∑
∑
=
=
•
=
127
1
2
127
1
2
)(
)(
hx
hx
h
h
RMS
RMSh
KFactor
∑
=
=
n
thr
tT
W
Wh
1sec/
)(
3600
∑
=
=
n
thr
tT
VAR
VARh
1sec/
)(
3600