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Variac type Servo Stabilizer

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Our company is involved in manufacturing a wide range of Variac Type Digital Servo Stabilizer. Our digital stabilizers are perfect for all types of electrical and electronic appliances. Latest technology is imbibed by us to manufacture these digital stabilizers in various configurations. Our Variac Type Digital Servo Stabilizers are equipped with latest Digital Micro Processors Controllers and have been designed to give a constant output voltage with stability of +/-1%.
Voltage fluctuations can reduce the efficiency of all types of electrical and electronic equipment and damage them. Our Variac Digital Voltage Stabilizers & constant voltage transformer protect your gadgets against voltage fluctuations and provide a clean, regulated AC power supply in environments with unreliable, fluctuating mains supply. In the event of a fluctuation in the voltage, the stabilizer will stabilize the output to ensure that the voltage reaching your equipment remains constant at 220V (+ 6%) and 220V (+ 9% in ER Models) within the operating range of the unit.
Technical Specifications

RatingUpto 3000 KVA
Input Voltage Range (phase to Phase)270V - 460V, 250V - 460V and 150V - 460V (Can be Customized)
Output Voltage Range (phase to phase)380 / 400 / 415 +/- 1%
Output WaveformTrue to Input
Input Frequency45 - 55 Hz
Response Time10 m. sec.
Correction Speed25 - 65 V/Sec
Correction MethodsStep less Correction Using Variac
CoolingOil Natural Air Natural (ONAN)
EfficiencyBetter Than 98%
Control CircuitFully Automatic IC Based Solid Stat, Glass Epoxy Control Card for easy on Line Serviceability
Duty Cycle100%
OperationAuto / Manual
No Load LossLess than 0.5%
Compatibility to DG SetSpecially Designed Control Card for failthful operation on Mains as well as DG Set
SuitabilitySuitable for 3 phase Unbalanced/Balanced Supply, Unbalanced / Balanced Loads
Operating Temperature-15°C to 45°C above Ambient
Additional Features (at Extra Cost)* High & Low Voltage Cutoff System
* Over Load And Short Circuit Protection
* Single Phase Prevention System
* Phase Sequence change protection
* Change over switch to By-Pass the system
* Earth Fault Protection
* Surge & RS Suppression System
* 110 Volts Output for Special Equipment.

  • High grade CRGO lamination
  • Simple rugged construction
  • 99.9% pure copper
  • High efficiency
  • High End Micro Processor Controllers
  • Negligible wave form & power factor distortion
  • Long life with negligible maintenance
  • High quality carbon brush used for current flow
  • Wide range of current rating 4 Amp. To 1200 Amp
  • Smooth & stepless voltage control
  • Short time overload capacity
  • Simple installation & connection

  • Air conditioning plants
  • Hospitals
  • Call Centers
  • Printing Industry
  • CNC Machines
  • Motors
  • Cements Plants
  • Rolling Mills
  • Cold Storage
  • Medical Equipment
  • Industrial & Manufacturing Units
  • Testing instruments


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