100 kVA-4000 kVA 3 PHASE OIL COOLED Servo Stabilizers

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