Title:
【発明の名称】電機の回転子巻線
Document Type and Number:
Japanese Patent JP2000508508
Kind Code:
A
Abstract:
A rotor winding for an electrical machine, in particular an air-cooled turbogenerator, includes a rotation axis and a multiplicity of electrically conductive turns which are stacked radially relative to the rotation axis and form a plurality of axial sections and tangential sections. Each axial section is formed approximately in a straight line, is aligned approximately parallel to the rotation axis and has first cooling channels which are aligned meridionally relative to the rotation axis and pass through all of the turns. Each tangential section is bent about the rotation axis, connects two axial sections to one another and has associated second cooling channels, each of which is located in the interior of a respective turn. If required, third cooling channels, each of which is constructed in such a way that it meanders meridionally, are provided at the axial sections. A method for operating the rotor winding includes rotating the rotor winding about the rotation axis, conducting electrical current through the rotor winding, and cooling the rotor winding with a gaseous coolant, especially air, flowing through the cooling channels.
Inventors:
Delaire, Thomas
Application Number:
JP53664397A
Publication Date:
July 04, 2000
Filing Date:
April 10, 1997
Export Citation:
Assignee:
Siemens Aktiengesellschaft
International Classes:
H02K3/22; H02K3/24; H02K9/00; (IPC1-7): H02K3/24; H02K9/00
Attorney, Agent or Firm:
Iwao Yamaguchi