Component models insulated with nanocomposite material for environmentally-friendly switchgear

Nano-clay and micro-silica mixed composites were made for use as insulating materials for environmentally-friendly switchgear. The thermal properties and V-t characteristics of these composites were evaluated under a homogeneous electric field. They were shown to have sufficient thermal and insulation breakdown properties as insulating materials for switchgear. In particular, their average insulation breakdown time was longer than that of conventional filled epoxy at 10 and 20 kV/mm. Moreover, we succeeded in making component models insulated with the composite for switchgear.