ABB RELION REX640 - 4.5.3.9 ROVPTOV Monitored data; 4.5.3.10 Technical data; 4.5.4 Positive-sequence overvoltage protection PSPTOV (ANSI 59 PS)

Table 808: ROVPTOV Non group settings (Basic)
Parameter Values (Range) Unit Step Default Description
Operation
1=on
5=off
1=on Operation Off / On
Table 809: ROVPTOV Non group settings (Advanced)
Parameter Values (Range) Unit Step Default Description
Reset delay time 0...60000 ms 1 20 Reset delay time
4.5.3.9 ROVPTOV Monitored data
Table 810: ROVPTOV Monitored data
Name Type Values (Range) Unit Description
START_DUR FLOAT32 0.00...100.00 % Ratio of start time / op-
erate time
ROVPTOV Enum
1=on
2=blocked
3=test
4=test/blocked
5=off
Status
4.5.3.10 Technical data
Table 811: ROVPTOV Technical data
Characteristic Value
Operation accuracy Depending on the frequency of the measured voltage:
f
n
±2 Hz
±1.5% of the set value or ±0.002 × U
n
Start time
1, 2
U
Fault
= 2 × set
Start value
Minimum Typical Maximum
48 ms 51 ms 54 ms
Reset time Typically 40 ms
Reset ratio Typically 0.96
Retardation time <35 ms
Operate time accuracy in definite
time mode
±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
Residual voltage before fault = 0.0 × U
n
, f
n
= 50 Hz, residual voltage with nominal frequency injec-
ted from random phase angle, results based on statistical distribution of 1000 measurements
2
Includes the delay of the signal output contact
Protection functions 1MRS759142 F
870 REX640
Technical Manual