In order to verify the design procedures for superconducting machines, a small 2-pole externalpole synchronous generator with a stationary field winding of NbTi has been built and tested. A report on the first 20 test cycles is given, including discussion of difficulties encountered. In addition to steady-state measurements, which agree well with the calculations, the results of the first tests of...Show More
The importance of the anisotropy of nonoriented cold-rolled electrical steel laminations employed for stators of synchronous machines has been investigated by a suitable method of calculating the field quantities and the iron loss. There are two particular directions in such laminations, the rolling and cross-rolling direction. The nonlinear magnetic induction vs. magnetic field and power loss vs....Show More
