
Traction takes the train to Norwich
As part of the FKI Rotating Machines' redistribution of product to appropriate Centres of Excellence, LSE has recently opened a dedicated bay for the manufacture and refurbishment of traction motors to support our associate company Brush Traction of Loughborough.
Many pieces of specialist equipment dedicated to traction motors (commutator-seasoning units, VPI impregnation system and curing ovens, and armature balancing sets, dedicated motor test bays) have been installed at Norwich. In addition to ongoing contracts for refurbishment of existing units in the field, current new-build orders include motor/alternators for Hong Kong Railways, and 24-off traction motors for use on new vehicles for Docklands Light Railway.
The propulsion system has two separately-excited traction motors with individual field and armature choppers, controlled by a hybrid microprocessor/conventional electronics control system. Brake choppers and resistors provide rheostatic braking.
Shown above is a Class 57 Freightliner heavy duty freight engine repowered by Brush Traction at Loughborough with the onboard main alternator/generator set rebuilt by LSE.
Trainspotters amongst LSE staff were a little disappointed in that only the motors rather than the locomotive, gets refurbished at Norwich. However, a trip was organised to Loughborough so that all involved could see the locomotives and other rolling stock first hand (and sit in the drivers seat!).
