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Our substation distribution transformers are purpose-built to deliver safe, efficient, and reliable power as part of your switchgear line-up. Designed for both indoor (less-flammable fluid) and outdoor applications, these transformers are ideal for utility substations, industrial facilities, infrastructure networks, and commercial buildings where space, safety, and performance are non-negotiable.

With UL and FM Global certifications, these transformers meet the highest standards for fire safety and operational integrity, ensuring peace of mind in mission-critical environments.

Engineered for seamless integration, they feature a compact footprint that fits easily into space-constrained installations. Their versatile design supports a range of insulating fluids, including less-flammable options for indoor use, making them adaptable to diverse environmental and regulatory requirements. 

Product scope:

Unit Substation Transformers Subsurface Vault Transformers Network Transformers Substation Transformers
Three-phase Secondary Unit Substations Three-phase Primary Unit Substations
  • 150 kVA to 1500 kVA
  • High-voltage: up to 34.5 kV, 150 kV BIL
  • Low-voltage: 480 V and below 30 kV BIL
  • Alternative to above-ground installations for commercial and residential underground applications

  • 300 kVA to 2500 kVA
  • High-voltage: 5 kV to 34.5 kV
  • Low-voltage: up to 600 V
  • Submersible: used in areas of high load density, e.g., large cities

  • 750 kVA to 20000 kVA
  • High-voltage: up to 69 kV
  • Low-voltage: up to 34.5 kV
  • Available in single-phase and three-phase applications
  • Generator step-up and unit auxiliary designs and load tap-changer
  • 150 kVA to 3000 kVA
  • High-voltage: up to 34.5 kV, 150 kV BIL
  • Low-voltage: Up to 4160 V, 60 kV BIL
  • Available fluids: mineral oil and ester fluids
  • 300 kVA to 20000 kVA
  • High-voltage: up to 69 kV
  • Low-voltage: up to 34.5 kV
  • Available fluids: mineral oil and ester fluids
  • Available with load tap-changer

Why choose Hitachi Energy for Distribution Transformers?

Consistent Quality

Ensures reliable design, manufacturing, and testing.

Unified Platform

Common design system across all factories for repeatable excellence.

Proven Designs

Largest library of type-tested distribution transformer solutions.

Broad Portfolio

Solutions for every challenge, backed by deep industry experience.

Global Reach

Most factories worldwide—always near your project site.

Green Innovation

Eco-efficient Green-R-Trafo™ transformers lead sustainable progress.

Dry-type distribution transformers
Liquid-filled Distribution Transformers
Distribution Transformers
LYS186599_2
Transformers

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