20
NV021 - Manual - 08 - 2012
TECHNICAL DATA
3.9 METERING
Direct
Frequency (
f
)
RMS value of fundamental component of the input voltages
(
U
L1
,
U
L 2
,
U
L 3
)
Calculated
Maximum voltage between
U
L1
-
U
L2
-
U
L3
(
U
Lmax
)
Average voltage between
U
L1
-
U
L2
-
U
L3
(
U
L
)
Positive sequence voltage
(
U
1
)
Negative sequence voltage
(
U
2
)
Frequency rate of change
(
df/dt
)
Medie
:
Ten minutes voltages (refresh 3 s)
(
U
L1avg
,
U
L 2avg
,
U
L 3avg
)
Max voltage between
U
L1avg
,
U
L 2avg
,
U
L 3avg
(
U
Lavgmax
)
PT100
[1]
Temperature PT1
(
T
1
)
Temperature PT2
(
T
2
)
Temperature PT3
(
T
3
)
Temperature PT4
(
T
4
)
Temperature PT5
(
T
5
)
Temperature PT6
(
T
6
)
Temperature PT7
(
T
7
)
Temperature PT8
(
T
8
)
Note 1 The measures of temperature are available only when the MPT module on Thybus is enabled (eight Pt100 inputs)
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