Electromagnetic shield for use in a power system
First Claim
1. An electromagnetic shield for use in a power distribution or transmission system for electromagnetically shielding at least one electrically conductive element included in the power distribution or transmission system, the at least one electrically conductive element when energized generates an electric field around the at least one electrically conductive element, the electromagnetic shield comprising:
- a base portion; and
opposing recess walls extending from the base portion at an angle with respect to a plane in which the base portion extends, so as to, together with the base portion, define a recess having a shape of a depression in the electromagnetic shield;
the base portion and the opposing recess walls providing electromagnetic shielding that is configured to withstand an electric field generated by DC voltages of at least 500 kV around the at least one electrically conductive element of the power distribution or transmission system;
wherein at least one recess wall of the opposing recess walls is arranged to have a distal edge with respect to the base portion, wherein the distal edge comprises a cylindrical portion.
5 Assignments
0 Petitions
Accused Products
Abstract
An electromagnetic shield including a base portion and opposing recess walls extending from the base portion at an angle with respect to a plane in which the base portion extends, so as to, together with the base portion, define a recess. At least one recess wall may be arranged such that it has a distal edge with respect to the base portion, wherein the distal edge includes a cylindrical portion. In alternative or in addition, at least one recess wall may be arranged such that at least a portion thereof curves outwards or inwards with respect to the recess.
7 Citations
19 Claims
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1. An electromagnetic shield for use in a power distribution or transmission system for electromagnetically shielding at least one electrically conductive element included in the power distribution or transmission system, the at least one electrically conductive element when energized generates an electric field around the at least one electrically conductive element, the electromagnetic shield comprising:
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a base portion; and opposing recess walls extending from the base portion at an angle with respect to a plane in which the base portion extends, so as to, together with the base portion, define a recess having a shape of a depression in the electromagnetic shield; the base portion and the opposing recess walls providing electromagnetic shielding that is configured to withstand an electric field generated by DC voltages of at least 500 kV around the at least one electrically conductive element of the power distribution or transmission system; wherein at least one recess wall of the opposing recess walls is arranged to have a distal edge with respect to the base portion, wherein the distal edge comprises a cylindrical portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A power converter assembly that converts high voltage direct current to alternating current or alternating current to high voltage direct current, the power converter assembly comprising:
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at least one electromagnetic shield electromagnetically shielding at least one electrically conductive element of the power converter assembly, the electromagnetic shield including; a base portion; and opposing recess walls extending from the base portion at an angle with respect to a plane in which the base portion extends, so as to, together with the base portion, define a recess having a shape of a depression in the electromagnetic shield, wherein at least one recess wall of the opposing recess walls being arranged to have a distal edge with respect to the base portion, wherein the distal edge comprises a cylindrical portion; wherein the base portion and the opposing recess walls provide electromagnetic shielding that is configured to withstand an electric field generated by DC voltages of at least 500 kV around the at least one electrically conductive element.
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19. A power distribution or transmission system comprising:
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at least one electrically conductive element; and an electromagnetic shield electromagnetically shielding the at least one electrically conductive element, the electromagnetic shield including; a base portion; and opposing recess walls extending from the base portion at an angle with respect to a plane in which the base portion extends, so as to, together with the base portion, define a recess having a shape of a depression in the electromagnetic shield, at least one recess wall of the opposing recess walls being arranged to have a distal edge with respect to the base portion, wherein the distal edge comprises a cylindrical portion; wherein the base portion and the opposing recess walls provide electromagnetic shielding that is configured to withstand an electric field generated by DC voltages of at least 500 kV around the at least one electrically conductive element of the power distribution or transmission system.
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Specification