WORLDWIDE IN-SITU MACHINING SERVICES SLIP RING IN-PLACE MACHINING RETURNS COAL FIRED STEAM TURBINES TO SERVICE 43-YEAR-OLD BBC TURBINE GENERATOR Worn slip rings compromise the transfer of current from the rotating component of the generator to the brushes. Over the course of time these can result in poor power transmission and in the worst cases arcing and potentially a ring fire resulting in a forced outage. Goltens Rotterdam’s in-place machining experts got the call to machine two sets of slip rings on a 43-year-old BBC generator with heavily worn slip rings. Evaluation with a straight edge showed a highly uneven wear pattern across the surface of the slip rings that required rectification. THE REPAIR Goltens

Join for free to read