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 Address to refer: https://www.researchchannel.co.za/article/lh-marthinusen-performs-complex-repairs-on-pump-stations-hybrid-ac-motor-2017-02-27
 Article Headline: LH Marthinusen performs complex repairs on pump station’s hybrid AC motor
 Abstract: LH Marthinusen (LHM), a division of ACTOM (Pty) Ltd, is a leading repairer of transformers and large rotating machines and manufacturer of specialised transformers, recently completed a complex repair operation on a hybrid integrated AC motor unit used to drive a large pump in a South African pump station. The 1150kW unit, one among several identical electromechanical units deployed at the pump station, was brought into LHM’s main repair facility in Denver, Johannesburg, after it had failed. The repairs were done by a special project team managed by Boris Breganski, LHM’s Operations Manager, Power Generation. “The hybrid unit, which was manufactured in 1970, consists of a variable speed AC commutated motor and an induction regulator,” explained Boris.
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