An electrical conductor with varying area moment of inertia

An electrical conductor configured for being fastened to a support structure at one or more fastening areas, the electrical conductor comprising:

• a first end and a second end,
• wherein the one or more fastening areas separate the electrical conductor in two or more conductor sections each having an area moment of inertia with respect to a reference axis,
• wherein a first conductor section of the two or more conductor sections has a first area moment of inertia,
• wherein a second conductor section of the two or more conductor sections has a second area moment of inertia with respect to the reference axis which is different from the first area moment of inertia, and
• wherein the first end and the second end are monolithically connected so as to form the electrical conductor in one piece.

A high-power electrical system comprising:

• two or more independent electrical conductors,
• wherein:
• at least one of the two or more independent electrical conductors is a first independent electrical conductor that includes a first end and a second end,
• the first independent electrical conductor is configured for being fastened to a support structure at one or more fastening areas, the one or more fastening areas separating the first independent electrical conductor in two or more conductor sections,
• a first conductor section of the two or more conductor sections of the first independent electrical conductor has a first area moment of inertia with respect to a reference axis, and
• a second conductor section of the two or more conductor sections of the first independent electrical conductor has a second area moment of inertia with respect to the reference axis, which is different from the first area moment of inertia.

A method of designing a first electrical conductor with a first end and a second end that are monolithically connected so as to form a first electrical conductor in one piece, the first electrical conductor being designed according to a physical location thereof in a high-power electrical system relative to a second electrical conductor, the method comprising steps of:

• establishing minimum physical distance between the first electrical conductor and the second electrical conductor, and defining an area around the location of the first electrical conductor at the minimum physical distance as a minimum conductor section,
• establishing a force occurring from at least one short circuit current at the minimum conductor section,
• establishing a bending moment of the minimum conductor section of the first electrical conductor provided by the force,
• establishing an area moment of inertia with respect to a reference axis of the minimum conductor section based on the bending moment and based on a maximum allowed stress of the minimum conductor section, and
• establishing a required length and height of the minimum conductor section based on the area moment of inertia,
• wherein the required length and height of the minimum conductor section is different from a length and height of an additional conductor section of the electrical conductor.