Servo Voltage Stabilizer
   
   TECHNICAL SPECIFICATIONS  
   
 
Item SERVO CONTROLLED VOLTAGE  STABILIZER
Capacity
  • 5.0 KVA to 2000 KVA
Cooling
  • Air and Oil cooled in two separate modules.
Type
  • Indoor , floor mounting (Balanced / Unbalanced)
Input Voltage Range
  • 300-400V / 320- 460V/ 340-460V/ 360- 460 V in 3 - phase. 4 wires AC system .
  • 170-270 VAC/ 140-270 VAC ± 1%, Single Phase or any voltage range  as per requirement for both single and three phase.
Output Voltage
  • 380 VAC/ 400 VAC/ 415 VAC ± 1%, 3 phase 50 Hz
  • 220 VAC /230 VAC ± 1%, Single Phase or any voltage as per requirement for both single and three phase.
Output Voltage Adjustment
  • ± 5%
Frequency Range of Operation
  • 47-53 Hz
Correction Speed
  • 35 Volts/sec

Control Circuit
  • Solid-state electric plug-in PCB circuit
Efficiency
  • Above98% at full load.
  • Above98% at half load
Adjustment
  • Output voltage level and correction sensitivity to be adjustable.
Duty Cycle
  • Continuous
Short Time Overload Capacity 
  • No less than 110% for 5 minutes
  • No less than 125% for 1 minute
Alarms and Trippings*
  • Output voltage HI/LOW alarm and tripping through output MCCB.
  • Input single Phasing alarm and tripping through input MCCB.
  • Input phase reversal  alarm and tripping through input MCCB.
  • Over temperature sensing and alarm
Metering
  • Voltmeter for Input / Output ?Volt Display
Indications (Using LED type lamps)
  • Input On (after MCCB) one lamp
  • Output R, Y B separate lamps (after MCCB)
  • Input phase reversal.
  • Input single Phasing
Protection*
  • Input MCCB for OL & SC protection.
  • Output MCCB for OL & SC protection.
  • Input phase reversal.
  • Input single phasing
Bypass Arrangement*
  • Suitable bypass arrangement for bypassing the input supply to output and isolating the Servo Stabilizer for maintenance/repair. .
Power Circuit Diagram on Panel (Mimic panel)*
  • Power and control circuit diagram with above indication to be screen printed. (Mimic panel) on the front panel of the servo stabilizer
Operating Temperature
  • Upto 500 C
Operating Humidity
  • Upto 95% RH
Conforming To
  • IS : 9815 with latest amendments
Oil
  • Transformer grade oil confirming to IS : 335/ IE 296
General
  • Painting using 7 tonk process system, earthling bolts, lifting hooks
* Optional  
   

 
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