Reverse Power/Directional Overpower Protection (Doppdpr); Underpower Protection (Duppdpr) - ABB REX640 Product Manual

REX640
Product version: 1
Table 118. Reverse power/directional overpower protection (DOPPDPR)
Characteristic
Operation accuracy 1)
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 119. Reverse power/directional overpower protection (DOPPDPR) main settings
Parameter
Start value
Operate delay time
Directional mode
Power angle
Table 120. 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
ABB
Function
DOPPDPR
DOPPDPR
DOPPDPR
DOPPDPR
Value
Depending on the frequency of the measured current and voltage:
f = 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 0.94
±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
2 = Forward
3 = Reverse
-90...90°
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
1MRS759144 A
n
Step
0.01
10
-
1
n
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