Functions
2.12 Auxiliary Functions
SIPROTEC, 7RW80, Manual
C53000-G1140-C233-1, Release date 10.2010
121
2.12.4
Min/Max Measurement Setup
Minimum and maximum values are calculated by the 7RW80. Time and date of the last update of the values
can also be read out.
2.12.4.1 Description
Minimum and Maximum Values
The minimum and maximum values of the three phase-to-ground voltages V
x-N
, the phase-to-phase voltages
V
xy
, the positive-sequence component V
1
, the voltage V
N
and the frequency primary values are recorded (in-
cluding the date and time they were last updated).
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.
2.12.4.2 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
.
2.12.4.3 Settings
Addr.
Parameter
Setting Options
Default Setting
Comments
8311
MinMax cycRESET
NO
YES
YES
Automatic Cyclic Reset Function
8312
MiMa RESET TIME
0 .. 1439 min
0 min
MinMax Reset Timer
8313
MiMa RESETCYCLE
1 .. 365 Days
7 Days
MinMax Reset Cycle Period
8314
MinMaxRES.START
1 .. 365 Days
1 Days
MinMax Start Reset Cycle in
