At the Kursk NPP-2, in the turbine hall of power unit No. 1 under construction, a low-pressure rotor was installed in the design position

In the turbine building of the first power unit of the KuNPP-2, a low-pressure rotor (LPR) is installed in the design position. The installation took place under the supervision of representatives of the equipment manufacturer.

“The rotor, 12.9 meters long and weighing 240 tons, was installed using an overhead crane. The installation was performed with millimeter precision - a complex operation requiring high qualifications and professionalism,” said the acting director of the Kursk NPP Andrey Osharin.

Before installation, specialists conducted a full visual inspection of the overhead crane and installation equipment - slings, traverses, and winches, in accordance with the technical documentation. The rotor neck was treated with a special impregnation to improve performance characteristics. The uniqueness of the impregnation lies in its anti-friction properties - reducing the friction force between moving parts.

One of the next steps will be to align the turbine shaft line. The process involves the delicate arrangement of component parts in the optimal position relative to other system elements. Alignment guarantees stable and safe operation of the turbine unit during operation.

“According to the PWR-TOI project, the most powerful domestic turbine in Russia is provided at Kursk NPP-2 - 1255 MW with a rotation speed of 1500 rpm. A low-speed steam turbine of active type consists of a combined high-pressure cylinder - a high- and medium-pressure cylinder and a double-flow low-pressure cylinder - a low-pressure cylinder. The uniqueness of this steam turbine lies in the use of a combined high and medium pressure cylinder,” commented Oleg Shperle, Vice President and Project Director for constructing the Kursk NPP.

Energy is the basis for the progressive social and economic development of the country, the supply of industry and citizens. The Russian fuel and energy complex continues the implementation of new projects and the planned renewal of capacities. This work is performed taking into account modern trends in digitalization and the replacement of imported equipment. Rosatom and its enterprises take an active part in this work.

Power units No. 1 and No. 2 of the KuNPP-2 of generation “3+” are pilot ones, being built according to the PWR-TOI project (standard optimized informatized pressurized water power reactor). This is a new project created by Russian designers (JSC Atomenergoproekt) on the basis of technical solutions for the NPP project with VVER-1200. They have improved technical and economic indicators. Compared to other 3+ generation power units, the VVER-TOI project assumes a significant reduction in the cost of construction, terms, and operating costs. The capacity of each power unit increased by 25%, up to 1255 MW compared to the power units of the operating Kursk NPP.

Back to the list