9.3.8 Technical dataTable 171:ROV2PTOV (59N) technical dataFunction Range or value AccuracyOperate voltage, step 1 (1-200)% ofVBase ± 0.5% of Vn at V < Vn± 0.5% of V at V > VnOperate voltage, step 2 (1–100)% ofVBase ± 0.5% of Vn at V < Vn± 0.5% of V at V > VnReset ratio > 98% -Inverse timecharacteristics for low andhigh step, see table 579- See table 579Definite time setting, step1(0.00–6000.00) s ± 0.5% ± 25 msDefinite time setting, step2(0.000–60.000) s ± 0.5% ± 25 msMinimum operate time forstep 1 inversecharacteristic(0.000-60.000) s ± 0.5% ± 25 msOperate time, pickupfunction30 ms typically at 0 to 2 x Vset -Reset time, pickupfunction40 ms typically at 2 to 0 x Vset -Critical impulse time 10 ms typically at 0 to 1.2 xVset -Impulse margin time 15 ms typically -9.4 Overexcitation protection OEXPVPH (24)9.4.1 IdentificationFunction description IEC 61850identificationIEC 60617identificationANSI/IEEE C37.2device numberOverexcitation protection OEXPVPHU/f >SYMBOL-Q V1 EN249.4.2 FunctionalityWhen the laminated core of a power transformer or generator is subjected to a magneticflux density beyond its design limits, stray flux will flow into non-laminated components1MRK 502 048-UUS A Section 9Voltage protection299Technical manual
