Siemens 6MD85, Manual

Page: 1040 / 1256

Minimum/Maximum Values
Function Description of Minimum/Maximum Values
Minimum and maximum values can be formed based on different measured or calculated measurands:
•
Operational measured values
•
Symmetrical components
•
Selected values
You can set which measurand will be used. The measurands for the minimum/maximum formation are loaded
from DIGSI.
Calculation and resetting of the minimum and maximum values are controlled through settings. The settings
describe the following points:
•
Memories of the minimum/maximum values are reset to 0 cyclically or not at all.
(Setting
Min/Max cyclic reset
)
•
Point in time when the memories of the minimum/maximum values are reset to 0.
(Setting
Min/Max reset each
and setting
Min/Max reset minute
)
•
Point in time at which the cyclical reset procedure of the minimum/maximum values begins (after the
parameterization)
(Setting
Min/Max days until start
)
The following figure shows the effect of the settings.
[dwminmax-100611-01.tif, 1, en_US]
Figure 9-31 Minimum and Maximum-Value Formation
Minimum and maximum values are time-stamped.
Minimum/maximum values are formed through:
•
Operational measured values except for phase-related ratings
•
Amounts of the symmetrical components
•
Average values
The minimum and maximum values are reset on a regular basis or via the
•
Binary input >Reset min/max
•
DIGSI
•
The integrated operation panel
9.8
9.8.1
Measured Values, Energy Values, and Supervision of the Primary System
9.8 Minimum/Maximum Values
1040 SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017