6.2.9 Technical dataTable 36:OC4PTOC technical dataFunction Setting range AccuracyOperate current (5-2500)% oflBase ± 1.0% of Ir at I ≤ Ir± 1.0% of I at I > IrReset ratio > 95% at (50–2500)% oflBase -Min. operating current (5-10000)% oflBase ± 1.0% of Ir at I ≤ Ir±1.0% of I at I > Ir2nd harmonic blocking (5–100)% of fundamental ± 2.0% of IrIndependent time delay (0.000-60.000) s ± 0.5% ±25 msMinimum operate time forinverse characteristics(0.000-60.000) s ± 0.5% ±25 msInverse characteristics, seetable 573, table 574 and table57515 curve types 1) ANSI/IEEE C37.112IEC 60255–151±3% or ±40 ms0.10 ≤ k ≤ 3.001.5 x Iset ≤ I ≤ 20 x IsetOperate time, nondirectionalstart function25 ms typically at 0 to 2 x Iset -Reset time, nondirectional startfunction35 ms typically at 2 to 0 x Iset -Operate time, directional startfunction50 ms typically at 0 to 2 x Iset -Reset time, directional startfunction35 ms typically at 2 to 0 x Iset -Critical impulse time 10 ms typically at 0 to 2 x Iset -Impulse margin time 15 ms typically -1) Note: Timing accuracy only valid when 2nd harmonic blocking is turned off6.3 Instantaneous residual overcurrent protectionEFPIOC6.3.1 IdentificationFunction description IEC 61850identificationIEC 60617identificationANSI/IEEE C37.2device numberInstantaneous residual overcurrentprotectionEFPIOCIN>>IEF V1 EN50NSection 6 1MRK 511 287-UEN ACurrent protection90Technical manual
