MI 2892 Power Master
Introduction
18
Sfund
Phase fundamental apparent power, including Sfund
p
(phase p
fundamental apparent power). See 5.1.5 for definition.
Safund
tot
Fundamental total arithmetic apparent power. See 5.1.6 for
definition.
Svfund
tot
Fundamental total vector apparent power. See 5.1.6 for definition.
S
+
tot
Positive sequence of total fundamental apparent power. See 5.1.5
for definition.
Sᴠfund
tot
Unbalanced fundamental apparent power. See 5.1.5 for definition.
S
ɴ
Phase nonfundamental apparent power, including S
ɴ
p
(phase p
nonfundamental apparent power). See 5.1.5 for definition.
Se
ɴ
Total nonfundamental effective apparent power. See 5.1.5 for
definition.
Sн
Phase harmonic apparent power, including Sн
p
(phase p harmonic
apparent power). See 5.1.5 for definition.
Seн
tot
Total harmonic effective apparent power. See 5.1.5 for definition.
THD
I
Total harmonic distortion current (in % or A), including THD
Ip
(phase
p current THD) and THD
IN
(neutral current THD). See 5.1.8 for
definition
THD
U
Total harmonic distortion voltage related (in % or V) including
THD
Upg
(phase p to phase g voltage THD) and THD
Up
(phase p to
neutral voltage THD). See 5.1.11 for definition.
u
-
Negative sequence voltage ratio (%). See 5.1.11 for definition.
u
0
Zero sequence voltage ratio (%). See 5.1.11 for definition.
U, U
Rms
RMS voltage, including U
pg
(phase p to phase g voltage) and U
p
(phase p to neutral voltage). See 5.1.2 for definition.
U
+
Positive sequence voltage component on three phase systems. See
5.1.11 for definition.
U
-
Negative sequence voltage component on three phase systems. See
5.1.11 for definition.
U
0
Zero sequence voltage component on three phase systems. See
5.1.11 for definition.
U
Dip
Minimal U
Rms(1/2)
voltage measured during dip occurrence
Ufund
Fundamental RMS voltage (Uh
1
on 1
st
harmonics), including Ufund
pg
(phase p to phase g fundamental RMS voltage) and Ufund
p
(phase p
to neutral fundamental RMS voltage). See 5.1.8 for definition
Uh
N
,
n
th
voltage RMS harmonic component including U
pg
h
N
(phase p to
phase g voltage n
th
RMS harmonic component) and U
p
h
N
(phase p to
neutral voltage n
th
RMS harmonic component). See 5.1.8 for
definition.
Uih
N
n
th
voltage RMS interharmonic voltage component including U
pg
ih
N
(phase p to phase g voltage n
th
RMS interharmonic component) and
U
p
ih
N
(phase p to neutral voltage n
th
RMS interharmonic
component). See 5.1.8 for definition.
