Directional Ef Protection (Defxpdef) Main Settings; Transient/Intermittent Earth-Fault Protection (Intrptef) - ABB REF615 Product Manual

Feeder Protection and Control
REF615
Product version: 2.0
Table 31. Directional EF protection (DEFxPDEF) main settings
Parameter
Start value
Directional mode
Time multiplier
Operate delay time
Operating curve type
1)
Operation mode
1) For further reference please refer to the Operating characteristics table at the end of the Technical data chapter
Table 32. Transient/intermittent earth-fault protection (INTRPTEF)
Operation accuracy (U0 criteria
with transient protection)
Operate time accuracy
Suppression of harmonics
Table 33. Transient/intermittent earth-fault protection (INTRPTEF) main settings
Parameter
Directional mode
Operate delay time
Voltage start value (voltage start
value for transient EF)
Operation mode
Peak counter limit
(Min requirement for peak counter
before start in IEF mode)
28
Function Value (Range)
DEFLPDEF 0.010...5.000 x I
DEFHPDEF 0.10...40.00 x I
DEFLPDEF 1=Non-directional
and 2=Forward
DEFHPDEF 3=Reverse
DEFLPDEF 0.05...15.00
DEFHPDEF 0.05...15.00
DEFLPDEF 60...200000 ms
DEFHPDEF 60...200000 ms
DEFLPDEF Definite or inverse time
Curve type: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
11, 12, 13, 14, 15, 17, 18, 19
DEFHPDEF Definite or inverse time
Curve type: 1, 3, 5, 15, 17
DEFLPDEF 1=Phase angle
and 2=I Sin
0
DEFHPDEF 3=I Cos
0
4=Phase angle 80
5=Phase angle 88
Depending on the frequency of the current
measured: f = ±2Hz
n
±1.5% of the set value or ±0.002 x U
±1.0% of the set value or ±20 ms
DFT: -50dB at f = n x f , where n = 2, 3, 4, 5
n
Function Value (Range)
INTRPTEF 1=Non-directional
2=Forward
3=Reverse
INTRPTEF 40...1200000 ms
INTRPTEF 0.01...0.50 x U
INTRPTEF 1=Intermittent EF
2=Transient EF
INTRPTEF 2...20
1MRS756379 D
Step
0.005
n
0.01
n
0.05
0.05
10
10
n
Step
10
0.01
n
ABB