Direct-current composite bushing with silicon rubber umbrella skirt units

• Main Authors: QU SHAOJUN, LIANG TING, YU HAI, CUI XUELONG, LI GUANG, SONG YUNXING, LUO XIANG, WANG SONG, LI YI, ZHOU PEI
• Format: Patent
• Language: Chinese; English
• Published: 22.05.2013
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRICITY; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

The invention relates to the relevant technical field of +/-500kV high-voltage direct-current bushing equipment, in particular to a direct-current composite bushing with silicon rubber umbrella skirt units. The direct-current composite bushing comprises a direct-current composite bushing body and a plurality of equidistantly distributed umbrella skirt units, each umbrella skirt unit comprises first large umbrella skirts, small umbrella skirts and 8-10 equidistantly distributed second large umbrella skirts, the first large umbrella skirts are arranged above the small umbrella skirts, the radius of each second large umbrella skirt is larger than that of each first large umbrella skirt, and the second large umbrella skirts are sleeved outside the first large umbrella skirts. By changing the diameters of parts of original first large umbrella skirt units, the maximum value of the field intensity of the umbrella skirts is effectively decreased, the possibility of rain splash is greatly reduced, and external insula