In August 2020, SPECENERGO manufactured and shipped its mobile modular transformer substation (MMS) for Rosseti Tyumen JSC.
The 110/35/10(6) kV and 25 MVA MMS consists of three modules with full operational readiness. The first 110 kV high voltage module accommodates the 110/35/10(6) kV and 25 MVA triple-wound transformer capable from switching from 6 to 10 kV as well as the PASS type packaged gas insulated switchgear (PGIS). The 35 kV medium voltage module accommodates the 35 kV packaged switchgear (PSG). The module has an extensible passage mechanism in\ accordance with regulatory technical documents. The 10/6 kV low voltage module accommodates the PSG cells and substation control center (SCC) with in-house, central alarm, control current and transformer protection cabinets. Medium and low voltage equipment occupies container units. All MMS modules are mounted onto articulated trailers to ensure mobility and facilitate delivery to the customer’s site.
The MMS delivery is a critical project of Rosseti Tyumen JSC included into its investment program approved by the Energy Ministry. Implementing the project will ensure timely electric power supply of the oil and gas production enterprise RN-Yuganskneftegaz LLC and will improve electric power supply reliability of Nefteyugansk Electric Grids in Khanty Mansi Autonomous Territory, a Rosseti Tyumen JSC group company.