Arc Protection Arcsarc - ABB RED615 Technical Manual

Section 4
Protection functions
4.7
4.7.1
4.7.2
4.7.3
4.7.4
514

Arc protection ARCSARC

Identification
Function description
Arc protection
Function block
A070686 V3 EN
Figure 267: Function block
Functionality
The arc protection ARCSARC detects arc situations in air insulated metal-clad
switchgears caused by, for example, human errors during maintenance or insulation
breakdown during operation.
The function detects light from an arc either locally or via a remote light signal.
The function also monitors phase and residual currents to be able to make accurate
decisions on ongoing arcing situations.
The function contains a blocking functionality. Blocking deactivates all outputs
and resets timers.
Operation principle
The function can be enabled and disabled with the Operation setting. The
corresponding parameter values are "On" and "Off".
The operation of arc protection can be described by using a module diagram. All
the modules in the diagram are explained in the next sections.
IEC 61850 IEC 60617
identification identification
ARCSARC ARC
1YHT530004D05 D
ANSI/IEEE C37.2
device number
50L/50NL
615 series
Technical Manual