Arc Detection Arcdsarc; Identification; Function Block; Functionality - ABB RELION SMU615 Technical Manual

1MRS758407 C
5.4

Arc detection ARCDSARC

5.4.1

Identification

Function description
Arc detection
5.4.2

Function block

Figure 104: Function block
5.4.3

Functionality

The arc function ARCDSARC is used for detection of arc situations in air
insulated metal-clad switchgears caused by, for example, human errors during
maintenance or insulation breakdown during operation. The function monitors the
light information from an arc and delivers a signal, if the arc is detected.
The function contains a blocking functionality. Blocking deactivates all outputs and
resets timer.
5.4.4

Operation principle

The function can be enabled and disabled with the
corresponding parameter values are "On" and "Off". The operation counters are
cleared when
The operation of ARCDSARC can be described with a module diagram.
Figure 105: Functional module diagram
The functions receives the arc light information from the sensors. Input FLT_ARC
activates the drop-off timer. Once activated, the timer remains active until the input
SMU615
Technical Manual
IEC 61850
identification
ARCDSARC
Operation is set to "Off".
Supervision functions
IEC 60617 ANSI/IEEE C37.2
identification device number
ARCD AFD
Operation setting. The
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