Stator bar

Abstract

A stator bar includes a substantially quadrangular conductive element made of a plurality of interwoven strands. The stator bar also includes an electric insulation applied around the conductive element and including a plurality of corners corresponding to corners of the conductive element. The electric insulation includes an inner insulation zone facing the conductive element, and an outer insulation zone surrounding the inner insulation zone. The radius of at least one of the corners is between 1.5-2.5 millimeters. Permittivity at the corners of the electric insulation decreases by 35-45% from the inner insulation zone facing the conductive element towards the outer insulation zone. The insulation includes at least one mica layer, where one of the at least one mica layer includes titanium dioxide (TiO2).

Dependencies are inferred from the claim text.