Alstom Technology Limited

General Electric Technology Gmbh

Alfred Ziegler

Daniel Hediger

Francesco Stallone

Massimiliano Vezzoli

Ralf Rotzinger

Duncan Madle

Hrvoje Lukacic

Claudio Picech

Hermfred Gohn

Ruediger Stein

An apparatus () for supporting a winding () on a stator (), in particular on a generator stator in a power station. The winding () has an end winding () which is supported axially on the core () of the stator () via winding supports () of the supporting apparatus (). The winding supports () are supported on the end winding () via a stressing device (), at right angles to an envelope surface (). In order to improve the axial position between the winding support () and the end winding () during operation of the stator (), a coupling device () is provided which allows relative movements between the end winding () and the winding support () in the circumferential direction and at right angles to the envelope surface (), and prevents such relative movements in an envelope line direction ().

Apparatus for supporting a stator end winding

The object of the invention is to provide improved protection for the insulation of the rotor end windings of electrical machines that is suitable in particular for electrical limit-rating machines. This is achieved by the rotor end bell ( ) consisting of steel and the retaining ring liner sheet ( ), spatially separating the end winding insulation ( ) from the rotor end bell ( ), consisting of titanium or a titanium alloy. Moreover, a lubricant ( ) with a temperature stability of >300&deg; C. is applied between the retaining ring liner sheet ( ) and the rotor end bell ( ).

Electrical machine

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Ennetbaden, Switzerland

Alfred Ziegler