Influence of Electrical Properties of Epoxy Insulating Materials on Surface Charge Accumulation Under DC Voltage
High resistance meter was used to measure the key electrical properties such as volume and surface resistivity of epoxy insulating materials under DC voltage,and DC voltage test device was used to measure surface charge accumulation under DC high-voltage through capacitance probe method,in order to study the influence factors of epoxy insulating materials on surface charge accumulation and to reduce surface charge accumulation.The relationship between resistivity and DC high-voltage exerted time of epoxy insulating materials was achieved by theoretical research,and the relationship between electrical properties of epoxy insulating materials and charge accumulation were also established.The improvement measures for the electrical properties of epoxy insulating materials which has practical significance to reduce surface charge accumulation rate and improve the reliability of insulator used in power transmission and transformation equipment under DC voltage were also formulated.
DC voltageepoxy insulating materialselectrical propertiessurface chargeaccumulation
国家科技期刊平台
NSTL
万方数据
维普
