Oil Cooled Servo Voltage Stabilizers

Oil Cooled Servo Voltage Stabilizers

Oil Cooled Servo Voltage Stabilizers Manufacturer


Servo Voltage Stabilizers are today’s popular stabilizer models used everywhere. Servomax Limited is a well-noted servo stabilizer manufacturer and supplier in India.

We offer the best oil cooled servo voltage stabilizers for customized applications to diversified clientele across India and abroad.

Our products are made with efficient manufacturing, testing, and quality control standards. Also, we construct them carefully following the IS 9815 -1994 standards. So, they are reliable, trustful, and safe to use. We use oil with specific characteristics helpful for stabilizer function. The oil is made to circulate evenly throughout the unit by using the best capillary tube systems.

The three-phase oil cooled servo voltage stabilizers of SERVOCARE assure trouble-free voltage regulation and thereby, play a wonderful role in power saving and management. With a customer-centric focus, we manufacture three-phase oil-cooled servo controlled voltage stabilizers with capacities ranging up to 5000kVA. Our products are preferably built with ultimate customization for indoor and outdoor applications.

Standardized servo motors are utilized to design these three-phase oil-cooled servo-controlled voltage stabilizers. The architecture of these units includes specific motors are intended to vibrate the oil in the fins. Our units are developed to withstand the capacity range up to 5000kVA. Apart from indoor usage, we also customize the units to suit for outdoor applications. These units are designed for serving various applications like –


  • CNC & VMC Machines
  • Industrial applications
  • IT applications
  • Automobile equipment
  • Elevators
  • Electrical Equipment
  • Metal Processing Equipment
  • Medical Equipment
  • Motor Lab Equipment

Benefits of Three-Phase Oil-Cooled Servo-Controlled Voltage Stabilizers
Servomax Limited’s three-phase oil-cooled servo voltage stabilizers are beneficial because they are–

  • Highly durable
  • Affordable
  • Able to withstand high capacities
  • Capable of higher voltage stabilization

These units are specialized to offer the following protections.

  • Single Phasing Prevention
  • Output Electronic Overload Protection
  • Phase Reversal Protection
  • Input Short Circuit Protection with MCB
  • Input Overload Protection with MCB
  • Output Low Voltage Protection
  • Output High Voltage Protection
  • Audio Alarm for Protections
  • Surge suppressor Protections
  • Bypass/Change over switch Protections

Servomax Limited introduces certain elegant indications like –

  • Mains Input on 3 LED Indications
  • 3-Phase Output on Indication
  • Phase Reversal Indication
  • Overload Indication

Indications in LCD Display
An LCD display is provided to the three-phase oil-cooled servo stabilizer units to indicate –

  • Input High and Input Low
  • Output on Indication
  • Output High Cut-off and Output Low Cut-off

Programmable parameters

  • Output Voltage Set (210-245V)
  • Output Low Voltage Cut-off
  • Output High Voltage Cut-off
  • Output High Voltage Cut-off
  • Input Low on LCD Display
  • Input High on LCD Display
  • Sensitivity/Regulation
  • Overload Cut-off
  • CT Full Scale

Programmable Control Timmings

  • Overload Cut-off Time
  • Auto Restart Time
  • On and Off Delay Time

Programmable Controls

  • Display Scrolling – Auto / Manual
  • Start / Stop Buttons
  • Menu / Start / Stop / Reset / Log Button
  • Data Log: Last 100 fault events log with Date and Time stamp and works on FIFO basis.
  • Very important for CSD
  • Analysis Problems
Input Voltage Range 300-460V, 340-480V, 360-460V
Output Voltage 415V
Type of Cooling OIL COOLED
Input Voltage Range 300-460V / 340-480V / 360-460V OC 3Ph
Output Voltage (3-Phase) 415V OC
System Star
Operating Frequency 47 to 53 Hz
Output Voltage Adjustable 380V to 415V OC in 3-Phase
Output Voltage Regulation +1% (No Load)
Output Voltage Regulation +1% (Full Load)
Overload Capacity 120%
Correction Rate 60 / 30 / 25V per sec – 3 phase
Waveform Distortion Nil
Output Waveform True Reproduction of Input
Insulation Class F
Short Circuit Period and Percentage 300% for 250 milli sec
Normal Operation Temperature 0°C to 45°C
Climate Conditions 90% Rh Max. Non-Condensing at 35°C
Type of Cooling Oil-Cooled up to 5000kVA
Mode of System Fully Automatic
System Construction As per IS: 9815 – 1994

Our Servomax Limited’s three-phase oil-cooled servo-controlled stabilizers have specific features like –

  • Instant response time 10 milli sec (half a cycle)
  • Greater efficiency above 99%
  • Best regulation as high as +/- 0.5%
  • “Micro-controller” enabled controlled system
  • Wider input range of operations and greater speed of correction

Metering on LCD Display

  • 3 ph Input voltage ph to ph and ph to Neutral
  • 3 ph Output voltage ph to ph and ph to Neutral
  • System Frequency
  • Output Current on each ph


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