Combined type 1-KV level transformer bushing

Abstract

The invention discloses a combined type 1-KV level transformer bushing, and belongs to the technical field of transformer bushings. The combined type 1-KV level transformer bushing comprises a conductive rod, a nut, a porcelain bushing, a sealing flat gasket, a metal gland, a wedge-shaped sealing leather ball and a base, wherein an external thread is formed at one end of the conductive rod, and a flat wiring terminal is arranged at the other end of the conductive rod; the base is an insulation casting body and is combined with one end, which is close to the flat wiring terminal, of the conductive rod to form an integrated structure; the sealing flat gasket, the porcelain bushing, the wedge-shaped sealing leather ball and the metal gland are sequentially sleeved on the conductive rod; the nut is matched with the external thread on the conductive rod and is arranged at the upper end of the metal gland. The combined type 1-KV level transformer bushing is simple in structure, convenient to mount and high in sealing property; the number of constituent accessories of the bushing is small; therefore the manufacturing cost is greatly reduced.

Description

technical field [0001] The invention relates to a transformer bushing, in particular to a combined 1KV class transformer bushing. Background technique [0002] The main function of the transformer bushing is to lead the high and low voltage leads inside the transformer to the outside of the oil tank. It not only serves as insulation for the leads to the ground, but also serves as a fixed lead. During the operation of the transformer, the load current passes through it for a long time. When a short circuit occurs outside the transformer through the short circuit current. The combined 1KV bushings currently on the market are composed of three porcelain parts and conductive rods, such as figure 2 As shown, it mainly includes conductive rod (1), nut (2), porcelain gland (9), circular sealing bead (10), upper porcelain sleeve (11), sealing flat washer (6), upper cardboard ( 12), the lower porcelain sleeve (13), the lower cardboard (14) and the positioning plate (15), the circul...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcomings of many 1KV transformer bushings in the prior art, difficult installation, unsatisfactory sealing effect and high manufacturing cost, and provide a combined 1KV transformer bushing using the technology provided by the present invention The scheme is not only simple in structure and easy to install, but also has good sealing performance of the casing, and at the same time, there are few components of the casing, which greatly reduces the manufacturing cost

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