The generator transformer is the first essential component for energy transmission, allowing energy supplied by the generator to be transferred to the network at the required voltage.

As a worldwide leader in their design and manufacture, AREVA T&D supplies generator transformers covering all client needs, starting from the lowest rated power installed up to the highest ratings known in the world, with voltages up to 800 kV.
AREVA T&D generator transformers can equip any type of power plant anywhere in the world, including thermal, classic or nuclear, hydraulic, co-generation or wind.

AREVA T&D’s knowledge and experience base has significantly expanded over the years, keeping pace with the development of networks and the increase of unit power. During the nuclear power plant implementation program in Europe, AREVA T&D supplied numerous 1100 MVA three-phase units and 1650 MVA three-phase banks made of three single-phase 550 MVA poles.

The choice between three-phase units or three-phase banks made of single-phase poles is often dictated by transport limitations within specific countries, but may also be determined by customer policy.

Generator transformers are usually equipped with de-energised tap changers, but they can also be equipped with on-load tap changers at customer request.

By responding to urgent customer requirements and immediate needs - and by successfully testing generator transformers in short-circuit withstand tests - AREVA T&D engineers have acquired an in-depth knowledge in this area and in associated design rules.