ABB South Africa has been awarded an order by Fluor for five intelligent compact disconnecting circuit breakers (DCBs) for the Oxygen Train 17 project for Sasol Synfuels Operations in Secunda. This is ABB’s first industry order for these advanced DCBs in the country. The project comprises the construction and commissioning of the world’s largest air separation unit at the Sasol site, to provide additional high pressure oxygen production capacity. The ABB order comprises five DCBs rated at 145 kV, 3150 A nominal current and a fault level of 40 kA. An earth switch for each circuit breaker was included. ABB will supply the units from Sweden to a tight delivery schedule and the cold commissioning will be done by ABB’s local engineering team. The DCBs, required to bypass the current limiting reactors to start large motors, will help to address the challenge of space at the Oxygen Train 17 project substation.
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