IGBT chopper camshaft replacement

By Railway Gazette International and Robert Preston1999-01-01T11:00:00

For the refurbishment of 12 Class 900 EMUs operated by Flumitrens of Brazil, Adtranz Switzerland has supplied IGBT choppers with an input voltage of 3 kV DC to replace the JH camshaft equipment controlling four 279 kW traction motors in each motor car. Each four-car Class 900 has two motor ...

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IGBT chopper camshaft replacement

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