Power Conditioning Specialists — Free site survey within 250 km
5–3000 kVA
Capacity Range
±1%
Output Accuracy
>98%
Efficiency
12 Months
Warranty
Precision Voltage Control for Reliable Operations
About Voltainer Technologies

Precision Voltage Control for Reliable Operations

Voltainer Technologies designs and manufactures servo voltage stabilizers, isolation transformers and online UPS systems for industrial and commercial customers.

Our servo voltage stabilizers are designed to provide stable and reliable voltage regulation — protecting motors, drives, controllers and sensitive electronics from the damage that unstable supply causes.

  • Copper-wound variac & transformer
  • Digital control with on-panel metering
  • Air-cooled & oil-cooled variants
  • Custom ratings built to order
More About Us
Why it matters

Unstable supply is costing you more than a stabilizer ever will.

Low voltage overheats windings. High voltage punches through insulation. Either way you pay for it twice — once in repair bills, and again in the production hours you lose while the line is down.

01

Real-time correction

A servo motor drives the variac continuously, correcting dips and surges before they reach your machines.

02

Built for Indian grids

Wide input band — 170–270 V single phase and 340–480 V three phase — for rural feeders and industrial estates alike.

03

Protection, built in

Over/under-voltage cut-off, single-phasing preventer, overload and short-circuit trip — standard on every unit.

Our Products

Featured Servo Stabilizers

Air-cooled and oil-cooled servo voltage stabilizers for every load — from a single clinic to a full production plant.

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Why Choose Us

Why Industry Chooses Voltainer

Engineering, components and support that keep your power stable for years.

Reliable Products

Rugged construction with copper-wound variacs and transformers, built for continuous duty on Indian grids.

Advanced Technology

Digital servo voltage controllers with real-time correction and on-panel metering of V, A and kVA.

Energy Efficiency

Efficiency above 98% with no waveform distortion — protection without wasting power.

Product Range

One model for every load

Air-cooled and oil-cooled variants available. Custom ratings built to order.

Get a Sizing Recommendation
ModelCapacityTypical Use
Single Phase 5–20 kVA Shops, clinics, lifts, offices and homes
Three Phase 10–100 kVA Workshops, CNC machines, cold storage
Heavy Duty 125–500 kVA Plants, textile, plastics, rolling mills
Oil Cooled 600–3000 kVA Continuous-duty heavy industry
Product Categories

Browse by Category

Servo Voltage Stabilizers Automatic servo-controlled voltage correction for sensitive and heavy loads. 0 products
Three Phase Servo Stabilizers Balanced and unbalanced three phase models for factories and commercial buildin… 1 product
Oil Cooled Stabilizers Transformer-oil cooled designs for high ratings and continuous duty. 0 products
Not sure which one? Share your load and our engineer will recommend the right model. Ask an engineer
Industries & Applications

Trusted Across Industries

Wherever motors, drives and electronics depend on steady voltage.

Manufacturing
Pharmaceutical
Hospitals & Diagnostics
Educational Institutions
Plastic & Injection Moulding
RMC Plants & Mining
CNC & VMC Machines
Printing Machines
All Applications
Technical Capabilities

What you get as standard

Every Voltainer stabilizer ships with the essentials that industrial customers expect.

  • Input 170–270 V 1-ph / 340–480 V 3-ph
  • Output 230 V / 415 V ±1%
  • Copper-wound variac & buck-boost transformer
  • Digital metering — V, A, kVA on panel
  • Efficiency above 98%, no waveform distortion
  • Manual bypass for zero-downtime service
  • Powder-coated IP-rated enclosure
  • Installation, commissioning & AMC support
What you get as standard
Quality & Testing

Quality Built Into Every Unit

Our quality process covers components, manufacturing and final testing.

Testing

Routine Testing on Every Unit

Each stabilizer is tested for output accuracy across the input window, correction response, protection trips and temperature rise under load before dispatch.

Quality Details
FAQ

Frequently Asked Questions

Quick answers about servo stabilizers, sizing and support.

Ask Our Engineer

A servo voltage stabilizer is an automatic voltage regulator that uses a servo motor to drive a variable transformer (variac). A control circuit continuously compares the output with the set value and moves the variac to add or subtract voltage through a buck-boost transformer, keeping output within about ±1%.
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Knowledge Centre

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Not sure which rating you need?

Looking for Reliable Voltage Stabilization?

Send us your connected load — our engineer will size the right unit and share a quotation within 24 hours. Site survey is free within 250 km.

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Talk to Our Technical Team

Tell us about your load and supply conditions. We respond to every enquiry within one working day.

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