Directional Earth-Fault Protection (Defxpdef) Main Settings; Transient/Intermittent Earth-Fault Protection (Intrptef) - ABB REF630 Product Manual

ABB
Feeder Protection and Control
REF630
Product version: 1.0
Table 34. Directional earth-fault protection (DEFxPDEF) main settings
Parameter
Start Value
Directional mode
Time multiplier
Operate delay time
Operating curve
1)
type
Operation mode
1) For further reference please refer to the Operating characteristics table
Table 35. Transient/intermittent earth-fault protection (INTRPTEF)
Characteristic
Operation accuracy (U
0
transient protection)
Operate time accuracy
Suppression of harmonics
Function
DEFLPDEF
DEFHPDEF
DEFLPDEF and
DEFHPDEF
DEFLPDEF
DEFHPDEF
DEFLPDEF
DEFHPDEF
DEFLPDEF
DEFHPDEF
DEFLPDEF and
DEFHPDEF
criteria with
Value (Range)
0.010...5.000 pu
0.10...40.00 pu
1=Non-directional
2=Forward
3=Reverse
0.05...15.00
0.05...15.00
0.06...200.00 s
0.06...200.00 s
Definite or inverse time
Curve type: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
13, 14, 15, 17, 18, 19
Definite or inverse time
Curve type: 1, 3, 5, 15, 17
1=Phase angle
2=I Sin
0
3=I Cos
0
4=Phase angle 80
5=Phase angle 88
Value
At the frequency f = f
n
±1.5% of the set value or ±0.002 × U
±1.0% of the set value or ±20 ms
DFT: -50dB at f = n × f
n
1MRS756380 A
Issued: 15.09.2009
Step
0.005
0.01
0.05
0.05
0.01
0.01
n
, where n = 2, 3, 4, 5
33