| 摘要 |
1477104 Dynamo-electric machines KRAFTWERK UNION AG 29 May 1975 [28 Jan 1975] 23530/75 Heading H2A An electric machine rotor includes a superconductive winding mounted in axially extending slots 30 uniformly spaced round the external periphery of a support cylinder 13, the slots all having identical dimensions and each containing a slot filling identical in dimensions and weight to the other slot fillings. There are therefore no unbalanced centrifugal forces which might distort the rotor. The rotor shown is that of a turbogenerator and the amount of superconductor 31 in the slots varies so as to produce a sinusoidal flux density waveform in the air gap. Those slots which are not filled with superconductor 31 contain ordinary copper conductors 32. The superconductors at different levels S1, S2, S3, S4 in the slots are of different profile. Insulating members 40 between the conductors and the side walls of the slots have radially or, as shown, axially extending grooves for the passage of coolant.
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