ABB RELION 630 Series Product Manual page 52

Generator Protection and Control
REG630
Product version: 1.3
Table 112. Power monitoring with P, Q, S, power factor, frequency (PWRMMXU)
Characteristic
Operation accuracy
Suppression of harmonics
Table 113. Sequence current measurement (CSMSQI)
Characteristic
Operation accuracy
Suppression of harmonics
Table 114. Sequence voltage measurement (VSMSQI)
Characteristic
Operation accuracy
Suppression of harmonics
52
Value
At all three currents in range 0.10...1.20 × In
At all three voltages in range 0.50...1.15 × U
At the frequency f = f
n
Active power and energy in range |PF| > 0.71
Reactive power and energy in range |PF| < 0.71
±1.5% for power (S, P and Q)
±0.015 for power factor
DFT: -50 dB at f = n × f , where n = 2, 3, 4, 5,...
n
Value
At the frequency f = f
n
±1.0% or ±0.002 × I
n
at currents in the range of 0.01...4.00 × I
DFT: -50 dB at f = n × f , where n = 2, 3, 4, 5,...
n
Value
At the frequency f = f
n
±1.0% or ±0.002 × U
n
At voltages in range of 0.01...1.15 × U
DFT: -50 dB at f = n × f , where n = 2, 3, 4, 5,...
n
1MRS757583 C
n
n
n
n
ABB