35/10 kV New Substation (EPC and O&M) – Design and Rehabilitation of the 220/110/35/6 kV “Erdenet” Substation
Orkhon Province, Bayangol soum
The rehabilitation and upgrade of the 35./10 kV substation included the following works:
Replacement of the existing 40MVA transformer with a new 63MVA transformer to increase capacity
Replacement of the 110kV circuit breakers (CBs) and disconnector switches (DSs) on the 110kV outdoor switchyard
Upgrading the measuring transformers in the 6kV indoor switchgear
Refurbishment and upgrade of the relay protection devices for the 6kV coupling feeder, 35kV busbar connector, 3 kV busbar protection, and 110kV busbar connector
Rehabilitation of the 35kV outdoor switchyard, including expansion of two line bays.