Induction apparatus with damping feature
AssigneeSiemens Aktiengesellschaft
InventorsJens Hamann, Bernd Segger
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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.
Claims20
An induction apparatus, comprising:
- 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 so interacting with the winding arrangement that a magnetic flux is induced in the magnetizable device.
An induction apparatus, comprising:
- a magnetizable core;
- a winding arrangement for inducing a magnetic field in the magnetizable core;
- a shielding device disposed between the winding arrangement and the magnetizable core;
- and
- an electric resistor connecting the shielding device to the magnetizable core.
An induction assembly, comprising at least two induction apparatuses, each induction apparatus including 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 so interacting with the winding arrangement that a magnetic flux is induced in the magnetizable device, wherein the winding arrangements of the at least two induction apparatuses are connected in series to form at least one winding strand.
An induction assembly, comprising at least two induction apparatuses, each induction apparatus including a magnetizable core;
- a winding arrangement for inducting a magnetic field in the magnetizable core;
- a shielding device disposed between the winding arrangement and the magnetizable core;
- and an electric resistor connecting the shielding device to the magnetizable core, wherein the winding arrangements of the at least two induction apparatuses are connected in series to form at least one winding strand.
A method of operating an electric machine of a type having at least one winding arrangement and a magnetizable core, said method comprising the steps of:
- applying a control voltage or a control current to the winding arrangement;
- and
- damping a capacitive bypass current between the winding arrangement and the magnetizable core by at least one of a lossy capacitive element and lossy inductive element.
Dependencies are inferred from the claim text.