Dolph insulators are American Dolphs (also known as Dolph).Doffer has been around for decades and has been in China for decades.Dolphs specializes in manufacturing and selling insulating liquid products to reduce electromagnetic noise.At the same time, the electrical strength and insulation resistance of the transformer insulation system are also improved to improve its electrical insulation performance and meet the requirements of electrical insulation performance of the transformer.Such as high voltage insulation products (enamoured wire, mica, coil, stator, rotor impregnated solution, etc.) insulation paint has the properties of moisture-proof, mildew proof, corrosion proof, salt spray proof, uv proof and other harmful substances.Through a coil insulation, in the process of production and processing of an insulation (enameled wire insulation) has certain damage, low voltage insulation products (insulating paint, insulation oil, rubber, etc.) function is: through a coil insulation, in the process of production and processing of an insulation (enameled wire insulation) has certain damage.