Wall bushing
AssigneeHitachi Energy Switzerland AG
InventorsAnders ERIKSSON, Alejandra RAVANAL, Christos ATHANASOPOULOS
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Abstract
A wall bushing for high voltage application is presented. The wall bushing includes a grounded shield. The grounded shield includes a grading ring in a distal end thereof. The grading ring has an elliptic cross section with conjugate diameters, wherein a major diameter of the conjugate diameters is arranged in an axial direction of the grounded shield and a minor diameter of the conjugate diameters is arranged in a radial direction of the grounded shield. The major diameter is larger than the minor diameter.
Claims16
A wall bushing for high voltage application, the wall bushing comprising a grounded shield, the grounded shield comprising a grading ring in a distal end thereof, the grading ring having an elliptic cross section with conjugate diameters, wherein a major diameter of the conjugate diameters is arranged in an axial direction of the grounded shield and a minor diameter of the conjugate diameters is arranged in a radial direction of the grounded shield, wherein the major diameter is larger than the minor diameter, wherein the major diameter is between 10 and 55% longer than the minor diameter.
A high voltage wall bushing comprising:
- a grounded shield that includes a grading ring in a distal end thereof, wherein a major diameter of conjugate diameters is arranged in an axial direction of the grounded shield and a minor diameter of conjugate diameters is arranged in a radial direction of the grounded shield,
- wherein the major diameter is larger than the minor diameter, wherein the major diameter is between 10 and 55% longer than the minor diameter.
Dependencies are inferred from the claim text.