8.1.8 Technical dataTable 188:UV2PTUV (27) technical dataFunction Range or value AccuracyOperate voltage, low andhigh step(1–100)% ofVBase ± 0.5% of VnReset ratio <102% -Inverse timecharacteristics for low andhigh step, see table 660- See table 660Definite time delay, step 1 (0.00 - 6000.00) s ± 0.5% ± 25 msDefinite time delays, step2(0.000-60.000) s ± 0.5% ±25 msMinimum operate time,inverse characteristics(0.000–60.000) s ± 0.5% ± 25 msOperate time, pickupfunction30 ms typically at 1.2 to 0.5Vset -Reset time, pickupfunction25 ms typically at 0 to 2 x Vset40 mstypically at 0.5 to 1.2 xVset-Critical impulse time 10 ms typically at 1.2 to 0.8 x Vset -Impulse margin time 15 ms typically -8.2 Two step overvoltage protection OV2PTOV (59)8.2.1 IdentificationFunction description IEC 61850identificationIEC 60617identificationANSI/IEEE C37.2device numberTwo step overvoltage protection OV2PTOV3U>SYMBOL-C-2U-SMALLER-THANV2 EN598.2.2 FunctionalityOvervoltages may occur in the power system during abnormal conditions such as suddenpower loss, tap changer regulating failures, and open line ends on long lines.1MRK 506 335-UUS A Section 8Voltage protection299Technical manual
