DRIVER has a clear vision: All research institutions in Europe and worldwide make all their research publications openly accessible through institutional repositories. The vision follows the Berlin Declaration, which called in October 2003 for 'free and unrestricted access to sciences and human knowledge representation worldwide'. Initiated by the… (More)
Induction motor manufacturers have long known that substitution of copper for die-cast aluminum in the rotor squirrel cage would significantly reduce motor losses and improve the electrical energy efficiency. Aluminum is readily die-cast to produce the complex squirrel cage within and around the iron laminations of the rotor. Copper is much more difficult… (More)
This paper adds to the growing body of data showing improved efficiency and cooler running temperatures for copper rotor motors. Test data for motors where copper has simply been substituted for aluminum with no change in design are presented for a series of motors built in India for pumping water for agriculture and two industrial motors are described.… (More)
Internal Review Christoph Bruch eContentplus This project is funded under the eContentplus programme 1 , a multiannual Community programme to make digital content in Europe more accessible, usable and exploitable.
generally focused on the common aluminum-, zinc-and magnesium-based die casting alloys. This report differs in that it deals with pressure die casting of a relatively high melting metal, pure copper. Short mold life is the limiting factor in achieving a cost effective die casting operation for high melting metals and alloys. This study, where the primary… (More)