ABB has won a $26 million order from Fortescue Metals Group to deliver water-cooled variable speed drives and high voltage induction motors to FMG’s majority-owned Iron Bridge Magnetite project in Western Australia.
The project, operated under an unincorporated joint venture between Fortescue subsidiary, FMG Magnetite Pty Ltd, and Formosa Steel IB, covers the development of a new magnetite mine, including processing and transport facilities. The $2.6 billion development is expected to produce 22 Mt/y (wet) of high grade, magnetite concentrate, with first ore in 2022.
As part of the project, the Iron Bridge Joint Venture required a cost-effective energy efficient variable speed drive solution, according to ABB. These drives, to be installed in eight switch rooms, operate with a separate transformer that is located outside the room. This reduces the heat generated inside, resulting in less energy required to maintain the 25°C room temperature.
ABB’s water-cooled drives also directly support a higher voltage 33 kV network, it said. “This eliminates the need for a lower voltage intermediate switchboard and additional components, which ultimately reduces the total cost of the project,” the company explained.
Iron Bridge also selected ABB high voltage induction motors to power high pressure grinding rolls, grinding mills and baghouse fans used to separate the ore from the dust at Iron Bridge. Engineered to withstand harsh conditions, the motors offer high power efficiency, but in a frame size smaller than competitive alternatives, it said.
Mike Briggs, Business Manager for ABB Motion, Australia, said: “We have worked closely with the Iron Bridge team to ensure that we delivered an energy efficient, reliable and innovative solution. We are especially pleased to have won both the drive and the motor business, and look forward to continuing our strong relationship with Fortescue beyond the delivery of this project and supporting them throughout the mine’s lifecycle.”