Galvanic Protection & Power Quality High-Performance Industrial Isolation Transformers
Engineered for absolute electrical safety, common-mode noise suppression, and fault mitigation, Volta Isolation Transformers deliver galvanic separation between power sources and critical industrial loads. Manufactured in Vadodara, Gujarat under ISO 9001:2015 quality management systems, our units protect sensitive electronic systems, data infrastructure, and automation machinery across international grids.
Technical Specifications & Design Parameters
Our isolation transformers are custom-designed to conform to international standard requirements including IEC 60076, IS 2026, and IEEE C57.12. Below are standard technical parameters available for global procurement:
| Power Rating Range | 25 KVA to 6 MVA (Custom design available up to 25 MVA) |
|---|---|
| Primary Voltage Ratings | 1.1 kV, 3.3 kV, 6.6 kV, 11 kV, 22 kV, 33 kV, up to 66 kV Class |
| Secondary Voltage Ratings | 380 V, 400 V, 415 V, 433 V, 440 V, 480 V (Customizable) |
| Phase & Frequency | 3-Phase / 1-Phase; 50 Hz / 60 Hz Universal Frequency |
| Winding Conductor | High Conductivity Electrolytic Copper or Grade-A Aluminum |
| Insulation System | Class F (155°C) / Class H (180°C) / Liquid Immersed Class A |
| Cooling Medium | ONAN (Oil Natural Air Natural) or Dry-Type AN/AF |
| Shielding | Electrostatic Faraday Shield (Copper Foil Between Windings) |
| Voltage Tappings | Off-Circuit Tap Changer (OCTC) / On-Load Tap Changer (OLTC) |
| Compliance Standards | IEC 60076, IS 2026, IS 1180, IEEE C57, ISO 9001:2015 |
Engineering Features & Technical Advantages
Volta Transformers incorporates advanced electromagnetic design techniques to address power quality challenges, high-frequency transients, and phase isolation requirements.
Galvanic Separation
Physical isolation between primary and secondary windings prevents ground potential loops, protects personnel, and blocks DC offset currents.
Faraday Noise Shielding
Integrated copper electrostatic shielding attenuates common-mode electrical noise and high-frequency voltage transients by up to 120 dB.
High Short-Circuit Strength
Robust mechanical clamping and vacuum-pressure impregnated (VPI) or oil-immersed coils ensure high thermal and short-circuit resistance.
Corrosion-Resistant Tanks
Heavy-duty steel enclosures with shot-blasted surface treatment and polyurethane/epoxy coatings rated up to IP65 for outdoor installations.
Global Industrial Applications
Volta Isolation Transformers are widely specified by engineering procurement contractors (EPCs) and plant managers across multiple mission-critical sectors:
Quality Assurance & Factory Acceptance Testing (FAT)
Every isolation transformer manufactured at our Gujarat facility undergoes 100% routine testing prior to dispatch. We welcome third-party inspection agencies (SGS, TUV, Bureau Veritas, Intertek) for Factory Acceptance Testing (FAT). Standard testing procedures include:
- Winding resistance & voltage ratio verification
- Vector group & phase displacement check
- Separate source AC voltage withstand test & induced overvoltage test
- Insulation resistance (IR) and dielectric oil breakdown strength testing
- No-load losses, load losses, and impedance measurement
Need Custom Engineering or a Detailed Quotation?
Our technical team provides customized isolation transformer designs tailored to your specific grid voltage, K-factor, and environmental requirements.
Inquire NowFrequently Asked Questions
Common queries from international procurement engineers regarding Volta Isolation Transformers.