Signals - ABB RELION REX640 Technical Manual

Section 5
Protection related functions
5.1.7
1064
I
1f
I
2f
Min operate current
GUID-434651E6-C694-4020-A6BF-649AB1A36193 V1 EN
Figure 571: Inrush current in transformer
It is recommended to use the second harmonic and the waveform-
based inrush blocking from the transformer differential protection
function TR2PTDF if available.

Signals

Table 999: INRPHAR Input signals
Name Type
I3P SIGNAL
BLOCK BOOLEAN
Table 1000: INRPHAR Output signals
Name Type
BLK2H BOOLEAN
Default Description
- Three-phase currents
0=False Block input status
Description
Second harmonic based block
1MRS759142 C
REX640
Technical Manual