ABB RELION 615 SERIES Product Manual page 29

Voltage Protection and Control
REU615
Product version: 5.0 FP1
Table 31. Residual overvoltage protection (ROVPTOV)
Characteristic
Operation accuracy
1)2)
Start time
Reset time
Reset ratio
Retardation time
Operate time accuracy in definite time mode
Suppression of harmonics
1) Residual voltage before fault = 0.0 × U
measurements
2) Includes the delay of the signal output contact
Table 32. Residual overvoltage protection (ROVPTOV) main settings
Parameter
Start value
Operate delay time
Table 33. Three-phase undervoltage protection (PHPTUV)
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) Start value = 1.0 × U , Voltage before fault = 1.1 × U
n
distribution of 1000 measurements
2) Includes the delay of the signal output contact
Start value = 0.50, Start value multiples in range of 0.90...0.20
3) Minimum
ABB
Start value
U = 2 × set
Fault
, f = 50 Hz, residual voltage with nominal frequency injected from random phase angle, results based on statistical distribution of 1000
n n
Function
ROVPTOV
ROVPTOV
Start value
U = 0.9 × set
Fault
, f = 50 Hz, undervoltage in one phase-to-phase with nominal frequency injected from random phase angle, results based on statistical
n n
Value
Depending on the frequency of the measured voltage: f
±1.5% of the set value or ±0.002 × U
Minimum Typical
48 ms 51 ms
Typically 40 ms
Typically 0.96
<35 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)
0.010...1.000 × U
n
40...300000 ms
Value
Depending on the frequency of the voltage measured: f
±1.5% of the set value or ±0.002 × U
Minimum Typical
62 ms 66 ms
Typically 40 ms
Depends on the set Relative hysteresis
<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
1MRS757058 K
±2 Hz
n
n
Maximum
54 ms
Step
0.001
1
±2 Hz
n
n
Maximum
70 ms
3)
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