In the stator of an electric motor is produced the electric current, where the coils of copper wire are fixed on a core made of steel. The stator coils are made in such a way as to make maximum use of current production, they are insulated from each other and covered by special varnish to withstand the highest temperatures and waste entry. https://www.mrosupply.com/popular_products/75-hp-213t-motors/ The electric current is induced by the magnetic field, acting on the stator wires. State-of-the-art technology is used for winding and insulation of the stator package.
The rotor is mounted on a steel shaft and has a copper coil fixed to the shaft which is surrounded by a pair of pole wheels. At the instant the ignition key is turned on, the rotor will receive from the battery the voltage that will induce an electric current in the coil wires. This current will produce the magnetic field that will induce the production of electric current. Manufacturers use high quality yarns specially developed for these applications. The rotor core will receive a special varnish bath that will withstand high temperatures. At the end of the production process they go through balancing to eliminate possible vibrations.