ABB RELION 615 Series Product Manual page 33

Motor Protection and Control
REM615
Product version: 5.0 FP1
Table 35. Directional earth-fault protection (DEFxPDEF) main settings
Parameter
Start value
Directional mode
Time multiplier
Operate delay time
2)
Operating curve type
Operation mode
1) Not included in REM615
2) For further reference, see the Operating characteristics table
Table 36. Three-phase undervoltage protection (PHPTUV)
Characteristic
Operation accuracy
1)2)
Start time
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite time mode
Operate time accuracy in inverse time mode
Suppression of harmonics
Start value = 1.0 × U
1) , Voltage before fault = 1.1 × U
n
distribution of 1000 measurements
2) Includes the delay of the signal output contact
Start value = 0.50, Start value multiples in range of 0.90...0.20
3) Minimum
ABB
Function
DEFLPDEF
1)
DEFHPDEF
DEFLPDEF and DEFHPDEF
DEFLPDEF
1)
DEFHPDEF
DEFLPDEF
1)
DEFHPDEF
DEFLPDEF
1)
DEFHPDEF
DEFxPDEF
Start value
U = 0.9 × set
Fault
, f = 50 Hz, undervoltage in one phase-to-phase with nominal frequency injected from random phase angle, results based on statistical
n n
Value (Range)
0.010...5.000 × I
n
0.10...40.00 × I
n
1 = Non-directional
2 = Forward
3 = Reverse
0.05...15.00
0.05...15.00
50...200000 ms
40...200000 ms
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 = IoSin
3 = IoCos
4 = Phase angle 80
5 = Phase angle 88
Value
Depending on the frequency of the voltage measured: f
±1.5% of the set value or ±0.002 × U
Minimum Typical
62 ms 66 ms
Typically 40 ms
Depends on the set Relative hysteresis
<35 ms
±1.0% of the set value or ±20 ms
±5.0% of the theoretical value or ±20 ms
DFT: -50 dB at f = n × f , where n = 2, 3, 4, 5,...
n
1MRS756890 N
Step
0.005
0.01
-
0.01
0.01
10
10
-
±2 Hz
n
n
Maximum
70 ms
3)
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