Ukrenergo has replaced and gone live new transformer (АТ-1 750/330/15.75 kV, phases А, В, and С) and phase-shifting transformer (phases А, В, and С) at SS 750 kV Dniprovska. Currently, the equipment undergoes 72-hour live testing.
New transformers, manufactured by PJSC Zaporizhtransformator, replaced the equipment with expired operating lifetime within the framework of the major transformer equipment replacement programme. The project is implemented at the expense of Ukrenergo’s tariff funds. In addition, Ukrenergo has replace the current lead 15.75 kV of AT-1 and PST .
The replacement of АТ-1 and PST at SS 750 kV Dniprovska significantly increases electricity transmission reliability, decreases operational expenses, and ensures a reliable power supply circuit during 750/330 kV transformer repairing at Zaporizhia NPP, SS 750 kV Zaporizka, and the reliability of power supply of Dnipro region, respectively.
The comprehensive programme of SS 750 kV Dniprovska automation envisages the reconstruction of open switch gears 750 kV, 330 kV, 110 kV, and 35 kV with installation of additional АТ-3 750/330 kV with capacity of 1000 МVА and automatic process control system. This will increase the capacity of the substation to 3000 MVA, significantly increase the reliability of power supply of Dnipro region, and give a powerful impetus to its economic development.
The SS 750 kV Dniprovska automation and reconstruction are funded by KfW Development Bank under “Reconstruction of substations in the eastern part of Ukraine” project.
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