24.11.2020  INFORMATION AND PUBLIC RELATIONS DEPARTMENT OF LENINGRAD NPP

Power distribution scheme of the Leningrad NPP to be closed into a single power ring soon

On November 21, the Leningrad NPP was supplied with large-sized equipment for high-voltage lines connecting the RBMK and VVER power units of the NPP into a single power distribution scheme. This is a shunt reactor, and it weighs 125 tons, assembled. The reactor was manufactured at the production site of Elektrozavod JSC in Moscow. In the near future, delivery of six more units of this electrical equipment is expected, including one spare unit.

A shunt reactor is a device that improves the stability and throughput of the power grid. Unlike the reactors of the previous generation, the new equipment is equipped with modern protection, control and measuring system, as well as the latest monitoring system. The supply of equipment for the open switchgear 750 (ORU-750) of the Leningrad NPP will make it possible to widely expand the scope of work on the installation of power distribution facilities from the new VVER-1200 power unit No. 6.

“Shunt reactors are required to regulate reactive power fluxes and limit voltage increase in high voltage power lines and switchgear buses of power stations and substations,” - Deputy Chief Engineer for electronic equipment at Leningrad NPP-2 Aleksandr Rudnik said. - “The use of this electrical equipment will allow for more efficient control of alternating current in the power grid, eliminate voltage fluctuations in it and increase the stability of the line. After the completion of the work related to the expansion of the power distribution scheme, all switchgears of the Leningrad NPP will be closed in a single power ring and, regardless of where the power system fails, the units will always work stably and provide electricity in accordance with the assignment.”


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