Voltage stabilizers are an effective solution to voltage fluctuation problems. They are designed to current a wide range of Input Fluctuations to maintain specified output voltage. The output voltage waveform is completely distortion free and the regulation is unaffected by the load power factor.

We manufacture both, Rolling contact type voltage controllersas well as Dimmer / Variac type Servo Voltage Stabilizers. ABC make Servo Voltage Stabilizer is an elegantly designed, high quality product incorporating state of the art technology and the best available raw material to deliver accurate voltage under conditions of low, high or unbalanced voltage. They can also provide protection in situation of Single Phasing, High / Low Voltage, Over Loading and Short circuiting. Apart from the standard product, these can also be custom built to suit specific requirements.


  • Controlled and Constant Voltage
  • Reduced failure rate of Electrical Equipment
  • Reduced Downtime
  • Improvement in Power Factor and MDI
  • Energy Saver – Reduced Power Consumption up-to 10%
  • Prevents Fire
Technical Specification

Servo Stabilizer Manufacturers
Ratings Up-to 5000 kVA ;
Voltage Class 200-480 V , 240 – 480 V , 280 – 480 V , 300-480 V , 320-480V(Other as specified)
Output Regulation ±1%
Cooling Natural Air / Oil
Acceptable Frequency 47-53Hz
Correction Speed 9-30 V per second
Response time 10ms
Efficiency More than 98%
Additional Facility Manual Operation
Waveform Distortion Nil
Duty Cycle 24 hours continuous on 100% load
Control Circuit Micro Controller based, Plug in Card for on-line serviceability
Control Panel Auto /Manual Mode Selection Switch Manual Output Voltage Adjustment Switch Output Voltage Adjustment knob ± 8 % of the seat voltage Voltmeter I/P /O/P reading Selection Switch Low /High Input Indicator Output Indicator

Servo Stabilizer Manufacturers

Optional Protections : High / Low Cut Off, Single Phase Preventer, Reverse Phase Protection , Overload Protection, Short Circuit Protection. Bypass System. Self lubricating carbon roller assemblies with working life of 1 lakh track meters