South Africa: Trafo Power Solutions, dry-type transformer specialist, designed, built and delivered a non-standard cast-resin replacement for a mining company in KwaZulu-Natal, suffering from a transformer failure – in just five weeks.
David Claassen, Managing Director of Trafo, said: “Once the situation with the old transformer was assessed, it was decided it would be more economical to replace the unit than to embark on major repairs.”
“We were able to accommodate the customer’s specifications in our replacement design, and have the unit manufactured by our European partners (the TMC transformers facility, in Italy) in just four weeks. After that, it took just a week to fly in the transformer and deliver it to the customer.”
Is not uncommon for transformer replacements of this scale to take anything from 12 to 14 weeks.
The mine required a 1,600 kVA dry-type DYN11 transformer that stepped 33 kV down to 550 V, with a non-standard tap setting arrangement of seven tap settings instead of the normal five.
Source: International Mining