Voltage Vector Shift Protection (Vvsppam) Main Settings; Directional Reactive Power Undervoltage Protection (Dqptuv ) - ABB REX640 Product Manual

REX640
Product version: 1
Table 115. Voltage vector shift protection (VVSPPAM) main settings
Parameter
Start value
Over Volt Blk value
Under Volt Blk value
Phase supervision
Table 116. Directional reactive power undervoltage protection (DQPTUV )
Characteristic
Operation accuracy
1)2)
Start time
Reset time
Reset ratio
Operate time accuracy
Suppression of harmonics
Start value = 0.05 × S
1) , reactive power before fault = 0.8 ×
n
2) Includes the delay of the signal output contact
Table 117. Directional reactive power undervoltage protection (DQPTUV) main settings
Parameter
Voltage start value
Operate delay time
Min reactive power
Min Ps Seq current
Pwr sector reduction
66
Function
VVSPPAM
VVSPPAM
VVSPPAM
VVSPPAM
Start value , reactive power overshoot 2 times, results based on statistical distribution of 1000 measurements
Function
DQPTUV
DQPTUV
DQPTUV
DQPTUV
DQPTUV
Value (Range)
2.0...30.0°
0.40...1.50 × Un
0.15...1.00 × Un
7 = Ph A + B + C
8 = Pos sequence
Value
Depending on the frequency of the measured current and voltage:
f ±2 Hz
n
Reactive power range |PF| <0.71
Power:
±3.0% or ±0.002 × Q
n
Voltage:
±1.5% of the set value or ±0.002 × U
Typically 46 ms
<50 ms
Typically 0.96
±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)
0.20...1.20 × U
n
100...300000 ms
0.01...0.50 × S
n
0.02...0.20 × I
n
0...10°
1MRS759144 A
Step
0.1
0.01
0.01
-
n
Step
0.01
10
0.01
0.01
1
ABB