Commissioning of the 110/6 kV MMS (110 kV Murbay Substation) for Power Supply During the Construction of the Novolenskaya TPP

At the end of June 2025, a 110/6 kV mobile modular substation (MMS) (110 kV Murbay Substation) with a transformer capacity of 16 MVA, manufactured by SPECENERGO, was commissioned to provide power supply for the construction of the Novolenskaya Thermal Power Plant (TPP).

The MMS consists of two independent mobile modules — High Voltage (HV) and Low Voltage (LV). The HV module is equipped with a mobile 110/6 kV, 16 MVA oil-filled transformer and Gas-Insulated Switchgear (GIS). The delivery set also includes an oil receiver and an oil collector. The LV module is constructed as an insulated container housing 6 kV Metal-Clad Switchgear (MCS) cubicles, an auxiliary control building, auxiliary power supply cabinets, a central alarm panel, and a diesel generator unit. The substation is equipped with modern telemechanics and automatic energy metering systems, which allow for rapid retrieval of equipment status information and monitoring of the power distribution process. All equipment used in the manufacture of the MMS is of Russian origin.

One of the main advantages of the MMS is its mobility. It can be freely transported on public roads and negotiate difficult terrain, which significantly simplifies the organization of both temporary and permanent power supply at remote sites, while simultaneously reducing logistics costs.

The use of the MMS during the construction of the Novolenskaya TPP enables:

  • Uninterrupted power supply during construction, installation, and commissioning works;
  • Power supply for the temporary residential camp;
  • Elimination of potential power capacity shortages at the construction sites;
  • Significant optimization of electricity costs, making the construction process more economically efficient.

Thus, the MMS represents a modern, technologically advanced, and cost-effective solution for ensuring power supply to facilities in any, even the most remote, locations. Its application opens up new possibilities for implementing large-scale construction projects in the absence of stationary power sources.

You may also like