Figure 284: 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.
4.3.2.7 Signals
Table 484: TR2PTDF Input signals
Name
Type Default Description
I_A1 SIGNAL 0 Phase A primary cur-
rent
I_B1 SIGNAL 0 Phase B primary cur-
rent
I_C1 SIGNAL 0 Phase C primary cur-
rent
Table continues on the next page
Protection functions 1MRS757644 H
552 620 series
Technical Manual
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