QH-Power 1600 kVA VPI Dry-Type Isolation Transformer

Part of QH-Power's standard VPI dry-type isolation transformer range — UL Listed and CSA Certified.

The 1600 kVA VPI dry-type isolation transformer is a regularly produced standard model from QH-Power's core product lineup — not a new product release, but a proven configuration that QH-Power supplies to customers worldwide. 

While 1600 kVA is one of the most widely specified capacity points across industrial and commercial projects, it is not the largest unit QH-Power manufactures. Higher-capacity VPI dry-type isolation transformers and fully customized 

solutions are available on request.

Oil-Free Isolation with VPI Technology

Using Vacuum Pressure Impregnation (VPI) technology, the windings are sealed with high-grade insulating varnish under vacuum and pressure, delivering excellent moisture resistance, thermal stability, and dielectric strength.

As an isolation transformer, the unit provides complete galvanic separation between primary and secondary circuits. By eliminating direct electrical connections between windings, it:

• Reduces electrical noise and suppresses transient disturbances

• Minimizes ground loop currents

• Enhances system and personnel safety

• Delivers maintenance-friendly, oil-free operation

Its oil-free design eliminates fire hazards and environmental contamination risks, making it ideally suited for indoor installations where fire safety and operational reliability are critical — including hospitals, data centers, industrial automation 

plants, commercial high-rises, and metro stations.

UL Listed and CSA Certified

The QH-Power 1600 kVA VPI dry-type isolation transformer is UL Listed and CSA Certified, complying with the two mandatory North American safety standards for dry-type transformers:

• UL 1561 — Standard for Dry-Type General Purpose and Power Transformers (United States)

• CSA C22.2 No. 47 — Air-Cooled Transformers (Dry Type) (Canada)

This dual certification means the same QH-Power unit satisfies regulatory requirements in both the U.S. and Canadian markets. The design also conforms to IEC 60076-11 and IEEE standards, providing global compliance coverage.

Where the 1600 kVA Unit Delivers

Healthcare and Medical Facilities — Sensitive medical equipment and isolated power systems in operating theatres, ICUs, and cardiac catheterization labs benefit from the clean, isolated power the unit provides.

Industrial Automation and Process Control — Automated production lines, motor control centers, and VFD-driven machinery rely on the transformer to prevent voltage transients from damaging servo drives and control electronics.

Data Centers and Commercial Buildings — The 1600 kVA unit serves as a robust distribution node where the oil-free design is essential for indoor installation and strict fire safety codes.

Renewable Energy and Infrastructure — From solar and wind installations to underground and enclosed substations, the transformer's VPI construction and environmental safety make it a strong fit for sustainable power projects.

Beyond 1600 kVA

While the 1600 kVA model is a staple of the QH-Power catalog, it is not the limit of what QH-Power can deliver. The company's VPI dry-type isolation transformer range extends substantially beyond 1600 kVA. QH-Power's engineering team 

works directly with customers to specify and build transformers matched exactly to site requirements — including customized voltage ratios, vector groups, enclosure types, and optional features such as thermal monitoring, K-factor ratings, and seismic mounting.

Quality You Can See

Every QH-Power VPI dry-type isolation transformer — including the 1600 kVA model — is manufactured under an ISO 9001:2015 quality management system. Each unit undergoes rigorous production testing before leaving the factory, and

 full export documentation is prepared in advance to ensure smooth customs clearance at any destination.

With a commitment to safety, efficiency, and environmental responsibility, QH-Power delivers VPI dry-type isolation transformer solutions that meet the world's most stringent electrical standards — serving customers across healthcare, 

industrial automation, data centers, renewable energy, and commercial infrastructure.