Functions
2.20 Auxiliary Functions
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A5, Release date 11.2012
278
2.20.4.3 Settings
2.20.4.4 Information List
2.20.5 Min/Max Measurement Setup
Minimum and maximum values are calculated by the 7SK80. Time and date of the last update of the values
can also be read out.
2.20.5.1 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 minimum and maximum values can be reset at any time via binary inputs or by using the integrated control
panel or the DIGSI software. Additionally, the reset can be carried out cyclically, starting at a preset point of
time.
Addr. Parameter Setting Options Default Setting Comments
8301 DMD Interval 15 Min., 1 Sub
15 Min., 3 Subs
15 Min.,15 Subs
30 Min., 1 Sub
60 Min., 1 Sub
60 Min.,10 Subs
5 Min., 5 Subs
60 Min., 1 Sub Demand Calculation Intervals
8302 DMD Sync.Time On The Hour
15 After Hour
30 After Hour
45 After Hour
On The Hour Demand Synchronization Time
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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