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2.14.5
Min/Max Measurement Setup
Minimum and maximum values are calculated by the 7SC80. Time and date of the last update of the values
can also be read out.
2.14.5.1 Description
Minimum and Maximum Values
The minimum and maximum values for the three phase currents I
to-phase voltages V
reactive power Q, and the apparent power S, the frequency, and the power factor cos ϕ are formed as primary
values, including the date and time of their last update.
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 input or by using the Web Monitor or
the DIGSI software. Additionally, the reset can be carried out cyclically, starting at a preset point of time.
2.14.5.2 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.
2.14.5.3 Settings
Addr.
Parameter
8311
MinMax cycRESET
8312
MiMa RESET TIME
8313
MiMa RESETCYCLE
8314
MinMaxRES.START
SIPROTEC, 7SC80, Manual
E50417-G1140-C486-A1, Release date 12.2011
, the positive sequence components I
xy
Setting Options
NO
YES
0 .. 1439 min
1 .. 365 Days
1 .. 365 Days
, the three phase voltages V
x
and V
, the voltage V
1
1
Default Setting
YES
Automatic Cyclic Reset Function
0 min
MinMax Reset Timer
7 Days
MinMax Reset Cycle Period
1 Days
MinMax Start Reset Cycle in
Functions
2.14 Additional Functions
, the phase-
x-N
, the active power P, the
N
Comments
167
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