ABB RELION 630 Series Product Manual page 35

Generator Protection and Control
REG630
Product version: 1.3
Table 53. Transformer 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
Winding 1 type
Winding 2 type
Zro A elimination
Clock number
Table 54. High-impedance or flux-balance based differential protection for machines (MHZPDIF)
Characteristic
Operation accuracy
1)2)
Start time
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite time mode
1) F = 50 Hz, results based on statistical distribution of 1000 measurements
n
2) Includes the delay of the signal output contact
ABB
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%
Y
YN
D
Z
ZN
Y
YN
D
Z
ZN
Not eliminated
Winding 1
Winding 2
Winding 1 and 2
Clk Num 0
Clk Num 1
Clk Num 2
Clk Num 4
Clk Num 5
Clk Num 6
Clk Num 7
Clk Num 8
Clk Num 10
Clk Num 11
Value
±1.5% of the set value or 0.002 × I
Typically 15 ms (±10 ms)
<65 ms
Typically 0.96
<50 ms
±1.0% of the set value of ±20 ms
1MRS757583 C
Step
-
10
1
1
1
1
1
-
-
-
-
n
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