High field winding core for use in generator rotor for generating electricity, has outer wall made of plastic, and shielding that shields inner space from electric field generated by winding during current supply in winding

摘要

The core has a side wall (1), an outer wall made of plastic (2) and comprising magnetizable material splinter bits, and a rigid usage surface. A non-electromagnetic radiation permeable material such as casting resin, is applied on the side and outer walls for insulation. A shielding (4) shields an inner space from electric field generated by a winding during current supply in the winding. A usage wall is made of conducting wall, and an inner side of the core is filled with a non-conducting light material such as plastic.