Out-Of-Step Protection Oosrpsb; Out-Of-Step Protection (Oosrpsb) Main Settings; Negative-Sequence Overcurrent Protection For Machines (Mnsptoc) - ABB REX640 Product Manual

REX640
Product version: 1
Table 132. Out-of-step protection OOSRPSB
Characteristic
Impedance reach
Reset time
Operate time accuracy
Suppression of harmonics
Table 133. Out-of-step protection (OOSRPSB) main settings
Parameter
Oos operate mode
Forward reach
Reverse reach
Inner blinder R
Outer blinder R
Impedance angle
Swing time
Zone 1 reach
Operate delay time
Table 134. Negative-sequence overcurrent protection for machines (MNSPTOC)
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
1) Negative-sequence current before = 0.0, f
2) Includes the delay of the signal output contact
Start value multiples in range of 1.10...5.00
3)
ABB
Function
OOSRPSB
OOSRPSB
OOSRPSB
OOSRPSB
OOSRPSB
OOSRPSB
OOSRPSB
OOSRPSB
OOSRPSB
Start value
I = 2.0 × set
Fault
= 50 Hz, results based on statistical distribution of 1000 measurements
n
Value
Depending on the frequency of the measured current and voltage: f
Hz
±3.0% of the reach value or ±0.2% of U
±1.0% of the set value or ±40 ms
±1.0% of the set value or ±20 ms
DFT: -50 dB at f = n × f , where n = 2, 3, 4, 5...
n
Value (Range)
1 = Way in
2 = Way out
3 = Adaptive
0.00...6000.00 Ω
0.00...6000.00 Ω
1.00...6000.00 Ω
1.01...10000.00 Ω
10.0...90.0°
20...300000 ms
1...100%
20...60000 ms
Value
Depending on the frequency of the measured current: f
±1.5% of the set value or ±0.002 x I
Minimum Typical
23 25 ms
Typically 40 ms
Typically 0.96
<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
1MRS759144 A
/(√3 ⋅ I )
n n
Step
-
0.01
0.01
0.01
0.01
0.1
10
1
10
n
n
Maximum
28 ms
3)
±2
n
71