High Voltage Substation Transformer
High Voltage Substation Transformers for industrial, utility, mining, and construction applications across North America.
CSA-ready, cULus listed options; engineered for Canadian climates.
Trusted High Voltage Substation Transformer manufacturer & dealer
SkyPower designs and supplies High Voltage Substation Transformers, which are designed, built, and tested in accordance with the highest industry standards, and certified with a Special Inspection Label (CSA). Each transformer is designed and engineered for long-term reliability, featuring reinforced steel tanks, high-grade windings, and comprehensive protection and monitoring systems.
Remanufactured & new units to fit your project
SkyPower offers both remanufactured and new High Voltage Substation Transformers to support replacement, system upgrades, and new construction projects across Canada. Each unit iis fully customizable—available with stainless steel enclosures, on-load tap changers, and intelligent control systems to meet unique site and operational requirements. All transformers are approved for use in Canada and the U.S., conforming to CSA and IEEE standards. All transformers—new or remanufactured—are built and tested in accordance with CSA and UL requirements, guaranteeing safety, efficiency, and long-term performance for industrial and commercial facilities.
Custom ratings, terminations, and accessories are available on request.
High Voltage Substation Transformer Standard Specifications
- Capacity Range: 3 MVA to 500 MVA
- Primary Voltage (Δ/Y): 44 kV to 230 kV
- Secondary Voltage (Δ/Y): 4.16Y kV to 138 kV
- Phase: Three-Phase
- Frequency: 60 Hz
- Winding Material: Copper or Aluminum
- Temperature Rise: 65 °C
- Insulating Liquid: Mineral Oil or FR3 Oil
- Tap Range: ±2 × 2.5%
- Finish: ANSI 70 Gray (Munsell RBG 7.0/0.4)
Compliant with CSA and IEEE requirements; cULus listed options available.
Standard Features
SkyPower’s High Voltage Substation Transformers come equipped with robust construction and advanced protection systems, ensuring safe and stable operation even under demanding grid conditions. Each unit is designed for optimized cooling, electrical efficiency, and easy maintenance, delivering long service life and consistent performance.
- Reinforced Carbon Steel Tank & Radiators
- Mineral Oil Cooling Insulant
- Air Terminal Chamber or Throat
- Copper or Aluminum Windings
- ±2 × 2.5% De-Energized Tap Changer
- Pressure-Vacuum Gauge with Contacts
- Liquid Temperature Gauge with Contacts
- Liquid Level Gauge with Contacts
- Pressure Relief Valve
- Drain and Sample Valve
Customization Options
Construction
- Stainless Steel Tank & Radiators
- Tamper-Proof Enclosure
- FR3 Fluid (UL Classified / FM Global Approved)
Performance
- On-Load Tap Changer (OLTC)
- Qualitrol Protection Gauges
- Control Cabinet for Cooling Fans
Monitoring & Electrical Design
- Winding Temperature Indicator
- Smart Monitoring System
- Electrostatic Shielding / K-Factor Rated
Certifications
CSA / IEEE compliant build options
Warranty & Lead Time
Standard 12-month warranty, optional coverage up to 3 years. Typical lead time ≤ 16 weeks, supported by nationwide service.
Why companies choose SkyPower
Quality
Built with robust materials and precision-engineered cores. Each unit is inspected and tested to meet or exceed NEMA/ANSI standards.
Lead Time
Fast delivery windows supported by configurable inventory and local service partners—ideal for emergency and planned outages.
Customization
From OLTC to monitoring systems, we tailor ratings, terminations, and enclosures to your site and interconnection requirements.
Need a High Voltage Substation Transformers?
Share your primary/secondary voltages, kVA, connection, and site conditions. Our engineers will configure a CSA-ready solution.