Process Monitor; Overview Of Functions; Structure Of The Function - Siemens 7SJ82 Manual

Function-Group Types

5.8 Process Monitor

5.8 Process Monitor

Overview of Functions

5.8.1
All function groups that have functions with dependencies on the state of the protected object contain a
process monitor. The process monitor detects the current state of the protected object.

Structure of the Function

5.8.2
The Process monitor function is used in the Standard V/I 3-phase protection function group.
The Process monitor function is provided by the manufacturer with the following function blocks:
•
Cold-load pickup detection (optional)
•
Current-flow criterion
•
Circuit-breaker condition
•
Closure detection
[dwpro3pt-061212-01.tif, 2, en_US]
Figure 5-89
You can activate the cold-load pickup detection as needed. All other stages of the process monitor run perma-
nently in the background and are not displayed in DIGSI.
The following figure shows the relationships of the individual function blocks.
294
Structure/Embedding of the Function
SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017