17.3 Energizing inputsTable 553:TRM — Energizing quantities, rated values and limits for transformer inputsDescription ValueFrequencyRated frequency fr 50 or 60 HzOperating range fr ± 10%Current inputsRated current Ir 0.1 or 0.5 A1) 1 or 5 A2)Operating range 0 – 50 A 0 – 500 AThermal withstand 100 A for 1 s 500 A for 1 s *)20 A for 10 s 100 A for 10 s8 A for 1 min 40 A for 1 min4 A continuously 20 A continuouslyDynamic withstand 250 A one half wave 1250 A one half waveBurden < 1 mVA at Ir = 0.1 A < 10 mVA at Ir = 1 A< 20 mVA at Ir = 0.5 A < 200 mVA at Ir = 5 A*) max. 350 A for 1 s when COMBITEST test switch is included.Voltage inputs**)Rated voltage Vr 100 or 220 VOperating range 0 – 420 VThermal withstand 450 V for 10 s420 V continuouslyBurden < 50 mVA at 100 V< 200 mVA at 220 V**) all values for individual voltage inputsNote! All current and voltage data are specified as RMS values at rated frequency1) Residual current2) Phase currents or residual currentSection 17 1MRK 511 287-UUS ATechnical data646Technical manual
