Basin-type insulator and manufacturing process thereof

Abstract

The invention discloses a basin-type insulator and a manufacturing process thereof. The basin-type insulator comprises a basin body and a center conductor. The center conductor is machined and formed, the outer cylindrical surface is in a shape like a Greek letter 'omega', and the normal bearing area is increased. The manufacturing process mainly includes the two stages of center conductor pretreatment and epoxy resin pouring. The center conductor is subjected to die filling and preheating after machining, washing, sand blasting and epoxy resin adhesive coating, materials obtained after vacuum mixing are poured into a die, and the basin-type insulator is finally formed through two times of curing. By means of the process, due to the fact that shape machining, sand blasting and adhesive coating are additionally carried out on the center conductor, electric field distribution is more reasonable, interface bonding strength is remarkably improved, and the poured and formed basin-type insulator has excellent electrical and mechanical performance.

Description

technical field [0001] The invention relates to the field of high-voltage electrical appliances, in particular to a basin-type insulator and a manufacturing process thereof. Background technique [0002] The basin insulator is a key component of high-voltage GIS equipment. In the connection bus of GIS, the basin insulator plays the role of isolating the air chamber, supporting the conductor and insulating. The current basin-type insulator structure is mainly composed of epoxy resin casting basin body, center conductor insert and outer flange. In high-voltage power transmission and distribution projects, the power transmission capacity is large, and it is necessary to ensure the long-term safe and stable operation of GIS equipment, especially the stable performance of the basin insulator as a key component of GIS. Therefore, in the design and production process of basin insulators, the electrical performance And the requirements of mechanical properties are becoming more and...

AI Technical Summary

Problems solved by technology

[0003] In the pot insulator structure, the SF at the high potential end 6 The intersecting area of ​​gas, metal conductor insert and insulating epoxy resin, as well as the bonding surface of metal insert and epoxy resin, have a great influence on the electrical and mechanical properties of pot insulators. The structure of metal conductor and bonding surface Reasonable design can effectively improve the distribution of the electric field. For the mechanical strength, especially the water pressure strength, it is more dependent on experience and the existing design, it is difficult to obtain stable water pressure damage strength, and the product quality is not stable enough. The mechanical strength of basin-type insulators is generally low, and cracks are prone to occur under pressure, which affects isolation and insulation performance

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