Functions
2.23 Auxiliary Functions
SIPROTEC, 7SJ62/64, Manual
C53000-G1140-C207-2, Release date 01.2008
356
2.23.4.4 Information List
2.23.5
Min/Max Measurement Setup
Minimum and maximum values are calculated by the 7SJ62/64. Time and date of the last update of the values
can also be read out.
2.23.5.1 Description
Minimum and Maximum Values
The minimum and maximum values for the three phase currents I
x
, the three phase-to-ground voltages V
xg
, the
three phase-to-phase voltages V
xy
, the positive sequence components I
1
and V
1
, the displacement voltage V
0
,
the thermal measured value of overload protection
Θ
/
Θ
off
, the real power P, reactive power Q, and apparent
power S, the frequency; and the power factor cos
ϕ
are calculated as primary values (including the date and
time they were last updated).
The minimum and maximum values of the long-term averages listed in the previous section are also calculated.
The min/max values can be reset via binary inputs, via DIGSI or via the integrated control panel at any time. In
addition, the reset can also take place cyclically, beginning with a pre-selected point in time.
2.23.5.2 Setting Notes
Minimum and Maximum Values
The tracking of minimum and maximum values can be reset automatically at a programmable point in time. To
select this feature, address
8311
MinMax cycRESET
should be set to
YES
. The point in time when reset is to
take place (the minute of the day in which reset will take place) is set at address
8312
MiMa RESET TIME
.
The reset cycle in days is entered at address
8313
MiMa RESETCYCLE
, and the beginning date of the cyclical
process, from the time of the setting procedure (in days), is entered at address
8314
MinMaxRES.START
.
No.
Information
Type of In-
formation
Comments
833
I1 dmd=
MV
I1 (positive sequence) Demand
834
P dmd =
MV
Active Power Demand
835
Q dmd =
MV
Reactive Power Demand
836
S dmd =
MV
Apparent Power Demand
963
Ia dmd=
MV
I A demand
964
Ib dmd=
MV
I B demand
965
Ic dmd=
MV
I C demand
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