Digital Air Cooled Servo Stabilizers

ISO 9001: 2008 certification

Digital Air Cooled Servo Stabilizers

Digital air cooled servo stabilizers manufactured by Servokon are mainly utilized for protecting electrical and electronic appliances from damage that is caused due to voltage fluctuation. In industries mainly, where big and heavy duty machines operate, there is a strong need of consistent power supply; a minor rise and dip may cause harm to the machines as well as other electric equipments.

Servokon has in-house manufacturing unit that is fully-furnished with modern equipments and machinery where our team of professionals made every product with great precision using the cutting-edge technology. Working with an efficiency of 98% and more, the stabilizer is designed to supply a constant output voltage with stability of + 1%. Professionals at Servokon keep strict vigil on the latest as well as upcoming trends in this domain; so that the best of technology can be offered to our clients.

Digital air cooled servo stabilizers are made of digital micro process that make sure that regular voltage will be supplied to the devices or electric appliances. The stabilizer is widely demanded in both domestic and international market. These stabilizers find its extensive use in CNC Machines, Printing Machines, Air conditioning package units & plants, Textile Machines, Lifts & Elevators, Photo Copiers, Domestic Load, Medical Equipment, Electronic Instruments and Machines with Sensitive Microprocessor.

Technical Specification

Rating 1 KVA to 100 KVA Single Phase 3 KVA to 3000 KVA Three Phase
Input Voltage Range 1 Phase 160V - 260V / 140V - 280V and 90V - 270V (can be customized further)
3 Phase 270V - 460V, 250V - 460V and 150V - 460V
Output Voltage Range 1 Phase 220 / 230 / 240 +/- 1% 3 Phase 380 / 400 / 415 +/- 1%
Output Waveform True to Input
Input Frequency 45 - 55 Hz
Response Time 10 m. sec.
Correction Speed 10 - 65 V/Sec
Correction Methods Step less Correction Using Variac
Cooling Natural Air / Oil
Efficiency Better Than 98%
Control Circuit Fully Automatic IC Based Solid Stat, Glass Epoxy Control Card for easy on Line Serviceability
Duty Cycle 100%
Operation Auto / Manual
No Load Loss Less than 1%
Compatibility to DG Set Specially Designed Control Card for faithful operation on Mains as well as DG Set
Suitability Suitable for 3 phase Unbalanced/Balanced Supply, Unbalanced / Balanced Loads
Operating Temperature -15°C to 50°C
Optional 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


  • Less power consumption
  • 98% efficiency
  • Available in both Single & Three Phase models up to 300 Kva
  • Excellent performance
  • Digital output facility
  • Low maintenance cost
  • Provides protection against voltage fluctuation


The Digital Air Cooled Servo Stabilizers are basically used for sensitive electronic appliances. Other uses of these stabilizers are with following appliances:

  • CNC Machines
  • Air conditioning package units & plants
  • Textile Machines
  • Printing Machines
  • Photo Copiers
  • Medical Equipment
  • Lifts & Elevators
  • Electronic Instruments
  • Domestic Load
  • Machines with Sensitive Microprocessor