Experimental enhancement for dielectric strength of polyethylene insulation materials using cost-fewer nanoparticles

•Experimental measurements have been investigated on ac high voltage breakdown of new cost-fewer polyethylene nanocomposites.•It is economically to enhance dielectric strength and dielectric properties of polyethylene by nanotechnology techniques.•Types and concentrations of cost-fewer nanofillers are effective factors on dielectric characterization of polyethylene.•Cost-fewer nanoparticles are developing dielectric strength of polyethylene under normal and high thermal conditions.•Cost-fewer polyethylene nanocomposites encourage manufactures to enhance power cables products by nanotechnology techniques. The use of nanocomposite polymers as electrical insulating materials has been growing rapidly in recent decades. The base polyethylene properties have been developed by adding small amounts of different fillers to the polyethylene material. It is economically to get polymer development by using cost-fewer nanoparticles; therefore, polyethylene dielectric properties are trapped by presence cost-fewer nanofillers like clay and fumed silica which are importance in development manufacture of power cables products. Dielectric strength is a vital pointer for quality of insulation materials of electrical power applications; hence, experimental measurements have been investigated on ac high voltage breakdown of new cost-fewer polyethylene nanocomposites materials. All experimental results of the new polyethylene nanocomposites have been compared with conventional polyethylene insulation materials; therefore, it has been specified the influence types and their concentrations of cost-fewer nanofillers on dielectric strength of polyethylene nanocomposite insulation materials.