Block step-up transformers and auxiliary transformers for power unit No. 1 have been put into operation at the Rooppur NPP, which is under construction in Bangladesh. This was reported by the Communications Department of the Engineering Division of Rosatom State Corporation.
Block step-up transformers are one of the most important elements of a nuclear power plant: they convert the voltage generated by the turbine generator (24 kV) to a voltage of 400 kV in order to supply electricity to the national grid.
The transformers can transmit a total capacity of up to 1599 MW, which is more than the power unit itself generates (1200 MW). One phase of the transformer weighs about 400 tons. More than 150 km of cable was required to connect it.
ASE Rosatom also reported that nuclear scientists have connected auxiliary transformers. They power all internal systems of the NPP power unit. Previously, consumers received energy from backup transformers, now the main power supply scheme is used.
The Engineering Division of Rosatom unites JSC Atomstroyexport, the design institute JSC Atomenergoproekt and subsidiary construction companies. About 80% of the division's revenue comes from projects in other countries.
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