Signals - ABB RELION REX640 Technical Manual

Section 4
Protection functions
4.3.2.8
622
GUID-FEBF3DEF-30BB-4A88-B8A6-BFED274DE6A8 V1 EN
Figure 345: Alternative connection example of current transformers of Type 2
The CT secondary currents often differ from the rated current at the rated load of the
power transformer. The CT transforming ratios can be corrected on both sides of the
power transformer with the CT ratio Cor Wnd 1 and CT ratio Cor Wnd 2 settings.

Signals

Table 582: TR2PTDF Input signals
Name Type
I3P1 SIGNAL
I3P2 SIGNAL
BLOCK BOOLEAN
BLK_OPR_LS BOOLEAN
BLK_OPR_HS BOOLEAN
TAP_POS INT8
Default Description
- Three-phase currents 1
- Three-phase currents 2
0=False Block
0=False Blocks operate outputs from biased stage
0=False Blocks operate outputs from instantaneous stage
0 Tap position indication
1MRS759142 C
REX640
Technical Manual