Twenty years on and the majority of motor driven systems still have no adequate form of control to switch off when needed or turn down when possible. Steve Brambley reports.
Danfoss recognised early on that its customers wanted customised and application specific products, rather than a standard drive that they needed to adapt. Sara Bernard reports.
Although the past 20 years has focused on the evolution of drive and motor technology, the services that support them have also seen major advances, as Neil Ritchie discusses.
John Inskip examines the new European energy-related product standard, EN 5059, and finds out just how far-reaching its implications are for both domestic and industrial electrically powered machinery.
Jon O’Brien takes a closer look at carbon brushes - the common electrical and mechanical issues that affect their use in dc motors and generators, and how a simple but rigorous maintenance regime will ensure long and trouble-free life.