Evaluation of laminates for high temperature electrical/mechanical applications

Many applications in the electrical industry require the use of materials that must sustain a mechanical load as well as provide electrical insulation. Applications such as these are electromechanical in nature, and include the armature bar support system in the stator, and the slot liner, blocking and retaining ring insulation in the rotor. In order to fill both the electrical and mechanical requirements of these applications, compromises have traditionally been necessitated in one of the material properties. The development of new materials has reduced the need for these compromises, as it has provided materials with increased mechanical strength without sacrificing insulating properties.