ABB RET615 Product Manual page 42

Transformer Protection and Control
RET615
Product version: 4.0
Table 43. Stabilized differential protection for two-winding transformers (TR2PTDF) main settings
Parameter
Restraint mode
High operate value
Low operate value
Slope section 2
End section 2
Start value 2.H
Start value 5.H
Operation
Winding 1 type
Winding 2 type
Zro A elimination
42
Function
TR2PTDF
TR2PTDF
TR2PTDF
TR2PTDF
TR2PTDF
TR2PTDF
TR2PTDF
TR2PTDF
TR2PTDF
TR2PTDF
TR2PTDF
Value (Range)
2.h & 5.h & wav
Waveform
2.h & waveform
5.h & waveform
500...3000 %
5...50 %
10...50 %
100...500 %
7...20 %
10...50 %
Off
On
Y
YN
D
Z
ZN
Y
YN
D
Z
ZN
Not eliminated
Winding 1
Winding 2
Winding 1 and 2
1MRS756891 F
Step
-
10
1
1
1
1
1
-
-
-
-
ABB