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US 6,784,777 B2Granted
Induction apparatus with damping feature
AssigneeSiemens Aktiengesellschaft
InventorsJens Hamann, Bernd Segger
Life of this patent
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Abstract
An induction apparatus includes a winding arrangement having a winding start and a winding end for inducing a magnetic field in a magnetizable core; and a lossy, magnetizable device through which and/or about which the winding start and the winding end of the winding arrangement is so disposed as to induce a magnetic flux in the magnetizable device. This arrangement prevents an electric breakdown at the star point of winding strands of synchronous motors.
Claims10
An induction apparatus for use in an electric machine, comprising:
- a pole core;
- a winding arrangement having a winding start and a winding end for inducing a magnetic field in the pole core in response to an electric current flowing through the winding arrangement;
- and
- a lossy, magnetizable device so interacting with the winding start and winding end of the winding arrangement that a magnetic flux is induced in the magnetizable device substantially only by a capacitive bypass current.
1 more element
Dependencies are inferred from the claim text.