Technical Specifications Single Phase (L-N) Three Phase (L-L)
Stabilizer Type Servo Stabilizer with O/P Sensing Feedback System
Type of Cooling Air Cooled/Oil Cooled
Model - Balanced/Unbalanced
Servo Motor Drive A.C. Synchronous Stepper Motor
Input Voltage Range 170–270 V 360–460 /340–480 /310–480 V
Nominal Output Voltage (Internally Settable to) 230 V ± 1%
(220 V or 240 V)		 415 V ±1%
(380 V or 400 V)
Voltage Correction Speed 25 Volts/Sec (L–N) 48 Volts/Sec (L–L)
Single Phasing Prevention NA By Voltage Sensing Method
Input Frequency 47 – 53 Hz
Output Voltage Regulation ± 1% of the set output voltage
Waveform Distortion Nil
Effect of Load PF on Output Voltage Nil
Efficiency > 97 %
Output Electronic Under/Over Voltage Protection Upper Limit: +5% (± 2 V) above nominal voltage
Lower Limit: –10% (± 2 V) below nominal voltage
Output Electronic Overload Cut-off Operative above 110% of rated output current
Short Circuit Protection Fuse at the input
Resetting Mode Manual/Auto restart with 15 seconds time delay
Stabilizer Bypass Switch Optional Built-in up to 50 KVA
Input/Output Cable Terminations 5-Way Terminal Connector 7-Way Terminal Connector
Front Panel Display/Indications
  • Digital Voltmeter to read O/P Voltage
  • I/P Present LED
  • O/P Normal LED
  • High Cut-off LED
  • Low Cut-off LED
  • Over-load LED
  • Digital Voltmeter to read
    O/P Voltage
  • R/Y/B-Phase LED
  • O/P Normal LED
  • High Cut-off LED
  • Low Cut-off LED
  • Overload LED
Standard Product Ratings 1 KVA - 20 KVA Air-Cooled - 3 KVA - 60 KVA
Oil-Cooled - 3 KVA - 1000 KVA