VPI/VPE Power Transformers
Henka’s VPI Power Transformers step down high voltages for industrial and utility applications. Vacuum pressure impregnation eliminates air voids, enhancing thermal conductivity and protection against contaminants. VPE models add extra epoxy layers for superior durability in harsh conditions.
Reliable transformers designed to endure tough environments and keep power flowing consistently.
VPI/VPE Power Transformers
Henka’s VPI Power Transformers step down high voltages for industrial and utility applications. Vacuum pressure impregnation eliminates air voids, enhancing thermal conductivity and protection against contaminants. VPE models add extra epoxy layers for superior durability in harsh conditions.
Reliable transformers designed to endure tough environments and keep power flowing consistently.
Technical Specifications
Tailor-Made Transformer Solutions
Henka’s VPI/VPE Power Transformers range from 100–5,000 kVA (single-phase) and 300–15,000 kVA (three-phase) with voltage ratings up to 46kV (250kV BIL). They feature air-cooled copper or aluminum windings, a 220°C insulation system, and VPI epoxy impregnation for durability, with VPE options for added protection. Built to North American energy standards, they include +/-2 x 2.5% primary taps and meet IEEE C57.12.01 sound levels.
Standard enclosures are Type 1 indoor, with Type 2, 3R, 4, 4X, and 12 options, all finished in ANSI 61 grey powder coat. CSA-certified, UL-listed, and ISO 9001:2015 compliant, Henka transformers undergo extensive testing and offer optional features like seismic mounting, surge protection, anti-condensation heaters, and ground fault relays for reliable performance in demanding environments.
TypE:
Rating:
Capacity:
Cooling:
Frequency:
Fuse:
Resistor:
Capacitor:
Conductors:
Grounding:
Temp. Rise:
Impregnation:
Overload Capability:
Saturation Level:
Efficiency:
K-Factor:
Config:
Enclosure Type:
Enclosure Finish:
Loadcenter:
Primary Breaker:
Mounting:
Warranty:
Quality System:
Insulation System:
- 220°C (150°C Temperature Rise) [Optional 115°C & 80°C Rise Available]
Testing:
Std Production Tests (per IEEE C57.12.91)
- Winding Resistance
- Turns Ratio
- Polarity and Phase Relation
- No-Load Loss and Excitation Current
- Load Loss & Impendance
- Applied Potential
- Induced Potential
Optional Type Tests
- Basic Insulation Level (BIL)
- Temperature Rise (Heat Run)
- Sound Level
- Partial Discharge
Other Optional Tests
- RIV
- Power Factor
Voltage Class:
- Up to 46kV (250kV BIL)
Secondary Voltage:
—
Taps:
- Typically +/-2 x 2.5% taps
Certifications:
- CSA Certified
- UL Listed
Reference Standards:
- CSA C22.2 No 47
- CSA C9
- IEEE C57.12.01
- IEEE C57.12.91
Optional Features & Accessories:
- Provision for Future Fans or Fan Packages (AFN) completely installed with or without Control Power
- Buss Co-ordination with primary and secondary switchgear (Unit-Substation configuration)
- Dial (Analog) or Digital Thermometers to monitor winding temperatures
- Neutral Ground Resistors (NGR) and Monitoring
- Anti-Condensation Strip Heaters
- Switching surge mitigating R.C. Snubbers (with or without ground current monitoring)
- Ground Fault Protection Relays (GFR)
- Anti-Vibration mounting to reduce transformer hum (sound level)
- Provision for Seismic mounting or complete Seismic Snubbers and Restraints
- Distribution, Intermediate or Station Class Surge Arrestors
- Provision for Buss Duct Entry
- Fully Insulated Buss
- Mimic Buss
- Kirk-Key Interlock
Contact us for a custom solution or explore our product range
Driving Success
with Henka Power
Reliable Transformers for Every Industry
At Henka, we believe power isn’t just about equipment — it’s about delivering solutions that fuel your success. Our commitment goes beyond manufacturing transformers; we provide dependable, efficient systems tailored to meet your project’s exact requirements. We start by understanding your specific needs, ensuring every detail is considered. Whether it’s a complex industrial setup or a commercial application, our team of experts guides you from consultation through delivery. With Henka, you gain more than just reliable transformers — you gain a partner dedicated to your long-term operational success.
Quality Support
Every Step of The Way
Professional Advice that You Can Count On
At Henka, our commitment doesn’t end with delivering high-quality transformers — it extends to providing exceptional customer support tailored to your needs. We understand that reliable power solutions require more than great products; they need responsive, knowledgeable assistance every step of the way. From the moment you reach out, our dedicated support team works closely with you to address your questions, solve challenges, and provide expert guidance. We’re here to ensure your operations run smoothly.
