Subika Underground Infrastructure (Newmont Ghana Gold Limited)
30/40MVA 160/34.5kV
Transformer specs
YNd11 ONAF OLTC
Transformer types
Export into Africa. Voltage operating conditions can withstand, without any danger, an exceptional overexcitation causing the flux to increase up to 1.4 times the normal flux for a duration of up to 10 seconds. The transformer shall be capable of operating continuously at no load and on any tap with the HV equal to 178kV.
15MVA 34.5/11kV
Transformer specs
Dyn11 ONAN OCTS
Transformer types
DRA Global exported the transformers to site, did the engineering on the expansion, and handled the exports of the transformers. ACTOM supervised the installation and cold commissioned the transformers.