Magnetic shunt, magnetic shunt arrangement and power device
AssigneeABB Research Ltd.
InventorsBogdan CRANGANU-CRETU, Jasmin Smajic, Henrik Nordborg
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Abstract
A magnetic shunt is provided for magnetic shielding of a power device (e.g., a power transformer). The magnetic shunt includes magnetic flux collectors that are magnetically connected by a magnetically permeable bridge. The bridge is arranged between the magnetic flux collectors with one magnetic flux collector being placed at each end of the bridge. The cross-section of the magnetic flux collectors is larger than the cross-section of the bridge, and the magnetic shunt forms a single structural unit. A magnetic shunt arrangement and a power device which include magnetic shunts according to the present disclosure are also provided.
Claims38
A magnetic shunt for magnetic shielding of a power device, comprising:
- magnetic flux collectors;
- and
- a magnetically permeable bridge configured to magnetically connect the magnetic flux collectors and form the magnetic shunt as a single structural unit, wherein:
- the bridge is arranged between the magnetic flux collectors with one magnetic flux collector being placed at each end of the bridge, respectively,
- a cross-section of the magnetic flux collectors is larger than a cross-section of the bridge;
- and
- the magnetic shunt is substantially concave towards magnetic field sources.
Dependencies are inferred from the claim text.