Kola MMC upgrades its power substations

Kola MMCMining and Metallurgical CompanyGo to the glossary (part of NornickelPublic Joint Stock Company "Mining and Metallurgical Company "Norilsk Nickel” and its subsidiariesGo to the glossary GroupPublic Joint Stock Company "Mining and Metallurgical Company "Norilsk Nickel” and its subsidiariesGo to the glossary) has completed an upgrade to distribution substation RP-72, and main stepdown substation 11E (GPP-11E) at its production site in Monchegorsk. The modernisation will guarantee a stable and reliable electricity supply to the main processing facilities of the nickel tankhouse and the energy supply centre at Kola MMCKola Mining and Metallurgical CompanyGo to the glossary as well as to third party consumers.

Kola MMC employee maintains switchgear of an electric substation

RP-72 and GPP-11E were made operational in 1981, during the fifth stage of the Severonickel Plant’s expansion. By now, the equipment has become worn out and obsolete, with spare components no longer in production. To provide a reliable and uninterrupted electricity supply, the switchgears RU-10 kV were replaced with modern equipment.

The new switchgear will have two 10kV busbars, which will consist of cells with vacuum circuit breakers, microprocessor-based protection units, arc flash protection with optical arc fault sensors and antiresonance voltage transformers.

The total upgrade costs for two substations are estimated at around RUB 350 mln.

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