Half-coil configuration for stator

Details Half-coil configuration for stator Half-coil configuration for stator

H - Electricity

02

K

H02K 3/00 (2006.01) H02K 3/14 (2006.01)

Patent

CA 2094015

56,891 ABSTRACT OF THE DISCLOSURE A half-coil for the stator winding of an electrodynamic system such as an electrical generator or motor includes an improved tube stack arrangement and a roebelling configuration which is designed to minimize power loss. The tube stack arrangement includes, in the disclosed embodiment, two central tube stacks and two roebel bars, one on each side of the tube stacks. By this arrangement, the individual strands in the roebel bars do not need to be transposed around the tube stacks, as was the case in prior art configurations utilizing more than one tube stack. The improved roebelling arrangement includes, in the disclosed embodiment, a total 720° transposition, including a 90° transposition in each of the two involute portions. To accomplish the 720° transposition in a limited space, the individual strands are combined into groups of two for a portion of the transposition.

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