Table 115. Voltage vector shift protection (VVSPPAM) main settings
Parameter Function Value (Range) Step
Start value VVSPPAM 2.0...30.0° 0.1
Over Volt Blk value VVSPPAM 0.40...1.50 × Un 0.01
Under Volt Blk value VVSPPAM 0.15...1.00 × Un 0.01
Phase supervision VVSPPAM 7 = Ph A + B + C
8 = Pos sequence
-
Table 116. Directional reactive power undervoltage protection (DQPTUV )
Characteristic
Value
Operation accuracy Depending on the frequency of the measured current and voltage:
f
n
±2 Hz
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
n
Start time
1)2)
Typically 46 ms
Reset time <50 ms
Reset ratio Typically 0.96
Operate time accuracy ±1.0% of the set value or ±20 ms
Suppression of harmonics DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5,…
1)
Start value
= 0.05 × S
n
, reactive power before fault = 0.8 ×
Start value
, reactive power overshoot 2 times, results based on statistical distribution of 1000 measurements
2) Includes the delay of the signal output contact
Table 117. Directional reactive power undervoltage protection (DQPTUV) main settings
Parameter
Function Value (Range) Step
Voltage start value DQPTUV 0.20...1.20 × U
n
0.01
Operate delay time DQPTUV 100...300000 ms 10
Min reactive power DQPTUV 0.01...0.50 × S
n
0.01
Min Ps Seq current DQPTUV 0.02...0.20 × I
n
0.01
Pwr sector reduction DQPTUV 0...10° 1
1MRS759144 A
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