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Our high voltage linear type de-energized tap-changers type AT represents a perfect solution for applications in which a low value of partial discharges is required. Space-saving design and high-class materials assure the best performance and reliability.

Hitachi Energy's offering includes a wide range of single-phase and three-phase, fixed point or bridge type AT de-energized tap-changers, which are configurable to specific customer’s needs.

Why Hitachi Energy?

  • High class material assure the longest lifetime
  • Proven solutions with decades of successful field experience.
  • Type tested beyond international standards
  • High reliability by using few parts and low complexity in design
  • Little to no maintenance
  • Space saving designs

Product scope:

  • Oil-filled transformers
  • range: Um ≤ 300 kV, Ir ≤ 650 A
  • Compliant with IEC standards
  • Material excellence allows use in tropical environments
De-energized tap-changer type AT
T-Sync™ tap-changers
Transformer Tap-changers
As a world leader in transformer components, we provide a unique combination of transformer tap-changer technology, deep expertise, and support that adapts to our customer’s needs. Click to learn more.
Transformer Insulation and Components
The world's broadest and most reliable portfolio of transformers components and insulation
LYS186599_2
Transformers
Hitachi Energy offers distribution and power transformers, Dry-type and EconiQ™ Transformers as well as services, for industrial and commercial applications.