Home Page

"Delivering reliable energy solutions—powering progress with precision-engineered transformers."

"Powering Progress with Innovative Transformer Solutions, Built on Quality, Reliability & Engineering Excellence"

Welcome to VOLTAMP

Welcome to Voltamp Electricals Pvt Ltd, a name synonymous with engineering excellence, innovation, and reliability. For over six decades, we have been at the forefront of transformer technology, powering industries and infrastructure across the nation. As the legal owners of the VOLTAMP® trademark, we guarantee authenticity, precision, and unparalleled performance.

Trademark Certification:
• Trademark Name: VOLTAMP®
• Certificate Number: 465830
• Issued By: Government of India
• Status: Registered & Legally Protected. We have not authorized anyone to use the word 'VOLTAMP' in any capacity without explicit written consent from Voltamp Electricals Pvt Ltd.

Our Product

Distribution Transformers

High energy efficiency.
Compact and space-saving designs.
Compliance: IS 1180, BIS Level 1-5, BEE standards.

Power Transformers

Fully customizable, liquid-filled configurations. Advanced tap changer technology (Off-Load and On-Load).
Cooling options: ONAN, ONAF, OFAF, KNAN, KNAF.
Compliance: IS 2026, IEC 60076.

Dry-Type & Cast Resin Transformers

Fire-safe design.
Noise reduction systems.
Compliance: IS 11171, IEC 60076-11.

Compact Sub-Station

A Compact Substation (CSS), also known as a Packaged Substation or Unitized Substation, is a factory-assembled, pre-engineered unit that integrates a medium voltage switchgear, distribution transformer, and low voltage panel within a single, compact enclosure. Designed for outdoor or indoor installation, CSS units are widely used in urban, commercial, and industrial power distribution systems where space, safety, and quick deployment are critical considerations.

Inverter Duty Transformer

1. High Dielectric Strength Insulation

Built to handle the rapid voltage fluctuations and surges that come from inverters.
Usually comes with reinforced insulation, often with epoxy-resin coating or Nomex/Mylar barriers.

2. Enhanced Thermal Rating

Often rated Class H (180°C) or higher to survive the extra heat from harmonic distortion.
Comes with thermal sensors or thermostats to prevent overheating.

3. Low Impedance Design

Helps reduce voltage drop during load variations.
Minimizes losses and improves efficiency under VFD operation.

4. Harmonic Withstanding Capability

Designed to tolerate the non-sinusoidal waveforms (especially PWM — pulse width modulation).
Can handle harmonic currents without cooking itself.

5. Noise and Vibration Dampening

Magnetic shielding and tight core construction to reduce audible noise (those high-frequency whines).
Optional sound enclosures or vibration isolators.

6. Electrostatic Shielding

Helps isolate high-frequency noise between primary and secondary windings.
Essential in sensitive applications (like CNC machines or medical gear).

7. Voltage Withstand Capability

Handles high dv/dt (rate of voltage change) stress without breakdown.
Can survive repetitive switching transients — think of it like emotional resilience for voltage shocks.