Stainless Steel Substation Transformer

ETAC manufactures high-performance Stainless Steel Substation Transformers engineered for durability in aggressive environments. Built with a fully 316 Stainless Steel construction, these transformers resist corrosion in harsh environments such as coastal or high-salinity areas and are ideal replacements for aging or rusted units.

Each unit complies with CSA C88.16 standards. The transformer can be offered in standard designs or customized to meet specific requirements.

  • Approved for use in Canada, as per SPE-1000 Special Inspection.

Stainless Steel Standard Specifications

Capacity Range: 300 KVA to 10 MVA

Primary Voltage: Δ or Y: 4.16 kV to 34.5 kV

Secondary Voltage: Δ or Y: 480 V to 13.8kV

Phase: Three-Phase

Freq: 60 HZ

Winding Material: Copper

Temp. Rise: 65°C

Insulating Liquid: Mineral Oil

Taps: ±2 x 2.5%

Finish: ANSI 70 Grey

Construction: Fully Stainless Steel

Built to:

Stainless Steel Standard Features

ETAC’s Stainless Steel Substation Transformers are built with reinforced stainless steel tanks, mineral oil insulation, and high-quality copper or aluminum windings. Each unit includes a complete set of protection and monitoring gauges, ensuring reliable performance, extended service life, and fast delivery across North America.

  • Reinforced Stainless Steel Tank & Radiators
  • Mineral Oil
  • Air Terminal Chamber or Throat
  • Copper or Aluminum Windings
  • ±2 x 2.5% De-Energized Tap Changer
  • Pressure Vacuum Gauge with Contacts
  • Liquid Temp Gauge with Contacts
  • Liquid Level Gauge with Contacts
  • Pressure Relief Valve
  • Drain and Sample Valve

For details on substation transformer design, including core construction, insulation system and winding configurations, refer to our article: Substation Transformer Design and Construction.

Customization options

  • FR3 UL classified and FM Global approved
  • On-Load Tap Changer
  • Control Cabinet for Fans
  • Winding Temperature Indicator
  • Monitor System
  • Electrostatic Shielding
  • K Factor Rated

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