Siemens Aktiengesellschaft

Haiko Adolf

Roland Röding

Marcus Banda

Günther Hautke

Norbert Keyssner

Lothar Trefflich

Jens Möbius

Fred Zimmermann

Georg Horna

Dirk Bergendahl

Oliver Stasiak

Hermann Lucas Traeger

Thomas Robert Walbeck

Werner Prof Buff

A method for determining a temperature at a predetermined location in a winding of subconductors of an electric machine is provided where each subconductor is encased in electric subconductor insulation. The method includes predetermining the location between one of the subconductors and the associated subconductor insulation; arranging, in said winding, an optical fiber with a sensor material piece that is fixed to the predetermined location, the optical properties of said sensor material piece being temperature-dependent and uninfluenced by stretching; exposing the sensor material piece to light via the optical fiber such that, following an interaction with the sensor material piece, light is emitted from said sensor material piece; measuring the spectrum of the light; and using this spectrum to determine the temperature at the predetermined location.

Method for determining a temperature in a winding of subconductors of an electric machine

The invention relates to a salient-pole machine comprising at least one field coil that extends in an axial direction of the salient-pole machine and is located below a pole shoe on a rotor body. Said machine is characterized in that the field coil is pressed against the pole shoe by means of at least one spring that is provided between the field coil and the rotor body and that an axial cooling channel is created in the gap between the field coil and the rotor body that is formed by the spring. The spring is configured in particular as a bent plate spring.

Salient-pole machine comprising at least one field coil

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Erfurt, Germany

Haiko Adolf