Symbol
Function
Class
Measuring range
Notes
P
total effective power
0.5
total reactive power
1
total apparent power
0.5
total active energy
0.5
total reactive energy
2
total apparent energy
0.5
f
frequency
0.02
40 ÷ 70 Hz
I
phase current
0.2
–
–
0.2
line-to-neutral voltage
0.2
line-to-line voltage
0.2
power factor
0.5
flicker
5
1, 2)
voltage dips
0.5
2)
voltage swells
0.5
2)
transients overvoltage
–
–
voltage interruption
1
2)
voltage unbalance (amp.)
0.5
4)
voltage unbalance (ph.&.)
0.5
voltage harmonics
2
1)
voltage total harmonic distortion (rel. to fund.)
2
1)
voltage total harmonic distortion (rel. to RMS)
2
1, 4)
current harmonics
2
1)
current total harmonic distortion (rel. to fund.)
2
1)
voltage total harmonic distortion (rel. to RMS)
2
1, 4)
mains signalling voltage
2
1,3)
1) … according to IEC 61000-4-7 ed.2.0, IEC 61000-4-15 ed.2.0
2) … with optional firmware module „PQ S“
3) … with optional firmware module „RCS“
4) … value available in the ENVIS program only
Function characteristics according to IEC 61557-12
Model
„230 X/5A“
, U
NOM
= 230 V, I
NOM
= 5 A
0 ÷ 5400 W
Q
A
, Q
V
0 ÷ 5400 var
S
A
, S
V
0 ÷ 5400 VA
E
a
0 ÷ 5400 Wh
E
rA
, E
rV
0 ÷ 5400 varh
E
apA
, E
apV
0 ÷ 5400 Vah
0.005 ÷ 6 A
AC
I
N
neutral current
measured
I
Nc
neutral current
calculated
0.005 ÷ 18 A
AC
U
LN
40 ÷ 280 V
AC
U
LL
70 ÷ 480 V
AC
PF
A
, PF
V
0 ÷ 1
P
st
, P
lt
0.4 ÷ 10
U
dip
10 ÷ 230 V
AC
U
swl
230 ÷ 280 V
AC
U
tr
U
int
0 ÷ 10 V
AC
U
nba
0 ÷ 10 %
U
nb
0 ÷ 10 %
U
h
up to 50
th
order
THD
u
0 ÷ 20 %
THD-R
u
0 ÷ 20 %
I
h
up to 50
th
order
THD
i
0 ÷ 200 %
THD-R
i
0 ÷ 200 %
M
SV
0 ÷ 46 V
AC
f
Msv
: 100 ÷ 3000 Hz
37
