PARAMETER Brand : Krykard •3 PHASE UNBALANCED OIL COOLED •Rating (kVA) : 100kVA - 4000 kVA •Type of Cooling : Oil •Input Voltage Range : (V L-L)* 310 V - 480 V / 340 V - 480 V / 360 V - 460 V / 360 V - 480 V •Output Voltage Range : (V L-L)* 415 V (380 V / 400 V - optional) •Output Voltage Regulation : 1% of nominal output voltage •Input Frequency Range : 47 Hz - 53 Hz •Efficiency: > 98% •Effect of Load Power Factor : Nil •Waveform Distortion : Nil •Type of Servo : Control Micro Controller based True RMS sensing and correction •Servo Motor Drive : Triac based drive for AC step synchronous motor •Under / Over Voltage Cutoff : * Electronic cutoff circuit with graded time delay, set @ +5% / -10% of nominal output voltage •Overload Cutoff : CT based electronic cutoff circuit with graded time delay set @ 110% of rated full load current •Short Circuit Protection : MCB / MCCB provided up to 100 kVA; HRC fuse provided for 125 - 175 kVA; Optional >200 kVA •Single Phasing Prevention : Provided in AU / OU models only; Not provided in the AR / OR models Phase Reversal Trip Provided in AU / OU models only; Not provided in the AR / OR models. •Stabiliser Bypass : Provided up to 50 kVA 3 - phase; Optional > 50 kVA •Transient Supression : Spike suppression through MOV is provided (Surge Arrestor is optional) Emergency Off Switch Provided in AU / OU models only; Not provided in the AR / OR models Frequency Cutoff Protection Optional •Input High Voltage Trip Optional •Resetting Mode : Manual / Auto option provided with programmable time delay •Display Type : 2 line LCD panel •Parameters Displayed : Input & Output Voltages (Line & Phase), Output Currents & Frequency •Input / Output Terminations : Bolted terminals up to 100 kVA, Busbar 125 kVA & above •Standards : IS 9815 ( Part -1); 1994