GANZ produces 750 kV transformer
Ganz Transformers and Electric Rotating Machines Ltd. has manufactured a 750 kV transformer at its Tápiószele plant.
Image credit: Ganz Transformers and Electric Rotating Machines Ltd.
Hungary, Tápiószele: Ganz Transformers and Electric Rotating Machines Ltd. has manufactured a 750 kV transformer at its Tápiószele plant. The company won a public procurement contract from MAVIR Ltd. to supply the 366.7 MVA machine for the Szabolcsbáka substation. The transformer will be integrated into a three-phase block with two previously installed transformers to form a system with a total capacity of 1100 MVA. It is expected to be commissioned at the same time as the substation is connected in November 2024, and is the company’s highest voltage transformer since its reorganisation.
The single-phase, oil-insulated, auto-transformer is 11.6 metres long, 11.3 metres wide and 11.7 metres high, weighing up to 240 tonnes. The Szabolcsbáka substation is the Hungarian terminus of the only 750 kV transmission line in the European Union, where the transformer will be connected as a phase unit to two other transformers of the same type to form a three-phase system with a capacity of 1100 MVA, providing Ukraine with the infrastructure to connect to the European grid.
The transformer had to match the electrical characteristics of the other two units and their physical dimensions, as it had to be installed in their place. After production, it underwent testing in Ganz’s laboratory. This included lightning impulse tests, winding resistance, temperature rise and noise level measurements, and diagnostic tests on the insulation system.
“It was a challenging task to manufacture this transformer, which involved the whole business unit, while the manufacturing process also pushed the limits of the physical capacity of our factory in Tápiószele. The 750 kV transformer will be an indispensable part of Hungary’s energy infrastructure and we are proud that it will help power our entire region for decades to come,” said Gergely Gál, Managing Director of Ganz.
Source: Ganz Transformers and Electric Rotating Machines Ltd.
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