Hitachi Energy 315 MVA 765 kV Single-Phase GSU Transformer | ABB / Hitachi Energy - VOLTFORMER

ABB / Hitachi Energy 315 MVA 765/24 kV. No-Load Loss (P0): 69300W, Load Loss (Pk): 535500W, Impedance (Uk): %16. 765 kV single-phase GSU family for high-voltage

Hitachi Energy 315 MVA 765 kV Single-Phase GSU Transformer

765 kV single-phase GSU family for high-voltage generation interconnection.

Hitachi Energy 315 MVA 765 kV Single-Phase GSU Transformer

ABB / Hitachi Energy

Rated Power
315 MVA
Primary Voltage
765 kV
Secondary Voltage
24 kV
No-Load Loss (P0)
69.3 kW
Load Loss (Pk)
535.5 kW
Short-Circuit Impedance (Uk)
%16
Winding Material
Copper (Cu-Cu)
Cooling Type
ONAF
Loss Class
JEC / IEC SOTA GSU
Vector Group
YNd11
Total Weight
320000 kg
Standards & Certification
IEC 60076, IEEE C57, JEC

https://www.hitachienergy.com/products-and-solutions/transformers/power-transformers/generator-step-up-transformers-gsu

https://www.hitachienergy.com/ca/en/news-and-events/blogs/2025/06/765-kv-power-the-efficient-and-high-capacity-backbone-to-advance-north-america-industrial-electrification

https://www.hitachienergy.com/products-and-solutions/transformers