There are several insulation method for the electric motors, the plastic end plate, the polyester slot insulation paper wedge, the powder coating and trickle rolling and varnish dipping baking method.
The purpose of insulation is to insulate the coil and armature stator stack to avoid short circuit,
The trickle polyester impregnation resin varnish method is to compact the armature and stator, make it smart and not easy to disassemble,
Pearl
Emily