Electro-Voice 250 Computer Monitor User Manual


 
e
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