Electric insulation for energy-saving equipment

Equipment is labelled as energy-saving if it requites less energy during its manufacture and operation. A reduction in energy consumption in the manufacture of large electrical machines and equipment can be obtained by reducing their dimensions with their power preserved. To achieve this, new insulating materials characterized by high thermal conductivity must be used to increase the capacity to wry away the heat generated in the windings. This paper presents a technique of obtaining insulating composites with increased thermal conductivity, results of tests on composites and the use of these materials in high-power electric machines and for the production of HV: insulators with increased resistance to surface discharges.