Underpower Protection - ABB REG615 Product Manual

Generator and Interconnection Protection
REG615
Product version: 5.0 FP1
Table 72. Third harmonic-based stator earth-fault protection (H3EFPSEF) main settings
Parameter
Beta
Voltage N 3.H Lim
Operate delay time
Voltage selection
CB open factor
Table 73. Underpower protection (DUPPDPR)
Characteristic
1)
Operation accuracy
2)3)
Start time
Reset time
Reset ratio
Operate time accuracy
Suppression of harmonics
Measurement mode = "Pos Seq" (default)
1)
2) U = U , f = 50 Hz, results based on statistical distribution of 1000 measurements
n n
3) Includes the delay of the signal output contact
Table 74. Underpower protection (DUPPDPR) main settings
Parameter
Start value
Operate delay time
Pol reversal
Disable time
48
Function
H3EFPSEF
H3EFPSEF
H3EFPSEF
H3EFPSEF
H3EFPSEF
Function
DUPPDPR
DUPPDPR
DUPPDPR
DUPPDPR
Value (Range)
0.50...10.00
0.005...0.200 × U
n
20...300000 ms
1 = No voltage
2 = Measured Uo
3 = Calculated Uo
4 = Phase A
5 = Phase B
6 = Phase C
1.00...10.00
Value
Depending on the frequency of the measured current and voltage:
f ±2 Hz
n
Power measurement accuracy ±3% of the set value or ±0.002 × S
Phase angle: ±2°
Typically 45 ms
Typically 30 ms
Typically 1.04
±1.0% of the set value of ±20 ms
-50 dB at f = n × f , where n = 2, 3, 4, 5,...
n
Value (Range)
0.01...2.00 × S
n
40...300000 ms
0 = False
1 = True
0...60000 ms
1MRS758279 B
Step
0.01
0.001
10
-
0.01
n
Step
0.01
10
-
1000
ABB