GUID-8BD4614B-2C4D-475E-ADC3-A376E213BF3C V1 EN
Figure 43: Phase discontinuity, thermal overload and circuit breaker failure
protection
ARC protection (ARCSARC1...3) and autoreclosing (DARREC1) are included as
optional functions.
The ARC protection offers individual function blocks for three ARC sensors that can
be connected to the IED. Each ARC protection function block has two different
operation modes, with or without the phase and residual current check. Operate
signals from the ARC protection function blocks are connected to the Master Trip
and also to the alarm LED 10 as a common operate indication.
Section 3 1MRS756378 D
REF615 variants
86 REF615
Application Manual
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