Connecting clamp of distribution transformer bushing lead screw rod and line wire

Abstract

The invention discloses a connecting clamp of a distribution transformer bushing lead screw rod and a line wire. The connecting clamp comprises a screw rod clamping plate, a long clamping plate and a lead wire pressing plate, wherein the lead screw rod is placed between the screw rod clamping plate and the upper end of the long clamping plate; the two ends of the screw rod clamping plate are fixedly connected with the upper end of the long clamping plate through bolts; the lead wire is placed between the lower end of the long clamping plate and the lead wire pressing plate; and the lower end of the long clamping plate is fixedly connected with the lead wire pressing plate through a bolt. With the adoption of the connecting clamp disclosed by the invention, the heating and burning-out of the connection between the high-voltage and low-voltage bushing lead screw rods of a transformer and the clamp can be reduced, the power failure frequency to a user is reduced, the power supplying reliability is improved, and the enterprise and social benefits are increased.

Description

Technical field [0001] The invention relates to a technology for connecting high and low voltage bushing lead screws of distribution transformers and line wires, in particular to a new type of wire clamp used for connecting high and low voltage bushing lead screws and line wires of 10 to 35kV distribution transformers. Background technique [0002] At present, in order to meet the electricity demand for industrial and agricultural production and the people's daily life, the electric power industry is constantly building and developing. Due to the high electricity demand for industrial and agricultural production and the people's daily life, the operating distribution transformers are often full or overloaded. Since the lead screw of the existing high and low voltage bushing of the distribution transformer is connected with the line conductor by a terminal board, the connection point is that the lead screw enters the hole on the terminal board and fastened by bolts. The hole on the...

AI Technical Summary

Problems solved by technology

Because the existing distribution transformer high and low voltage bushing lead screw rods are connected to the line wires by terminal boards, the connection point is that the lead wire rods enter the holes on the terminal board and are fastened with bolts, and the holes on the terminal board are smaller than the lead screw rods. Can't get in, the hole on the terminal board is too big and the contact with the lead screw is not tight, the contact area between the terminal board and the lead screw is small, and a large current often flows, the heat between the transformer high and low voltage bushing lead screw and the terminal board is hot. If the transformer is damaged, it will cause a transformer accident and be forced to cut off the power for maintenance, so the equipment damage rate is high, the power outage time is long, and the reliability of power supply is low.

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