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The function contains a blocking functionality. It is possible to block the function output,
Timer or the whole function.
6.3.4
Operation principle
The function can be enabled and disabled with the
Operation
setting. The corresponding
parameter values are "Enable" and "Disable".
The operation of MCS-A, MCS-B, MCS-C can be generated with a module diagram. All
the modules in the diagram are explained in the next sections.
The module diagram illustrates all the phases of the function. However, the functionality
is described only for phase A. The functionality for phase B and C is identical.
GUID-8C5661F6-12FC-4733-886C-01F793DF2FBF V1 EN
Figure 442:
Functional module diagram
Level detector
This module compares the differential current
I_A
to the set
Pickup value
. The timer
module is activated if the differential current exceeds the value set in the
Pickup value
setting.
1MAC059074-MB A
Section 6
Supervision functions
615 series ANSI
855
Technical Manual
Содержание Relion 615 series
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