D-shaped lead fixing and clamping device and method

Abstract

The invention provides a D-shaped lead fixing and clamping device and method which are large in number of fixed leads, and capable of not changing the mounting direction of the leads. The D-shaped lead fixing and clamping device comprises a first lead clamping assembly, a second lead clamping assembly and a support. The first lead clamping assembly is a rectangular frame with an opening in the length edge, and the second lead clamping assembly is a linear frame. The second lead clamping assembly is matched with the length edge of the opening of the first lead clamping assembly to fixedly form a closed frame, and the leads are clamped in the closed frame. The width edge of the first lead clamping assembly is fixed at one end of the support in parallel. The lead fixing and clamping method comprises the following steps that the support is fixed through a threaded through hole in the fixed end, then the first lead clamping assembly is fixed on the support through an insulation screw rod, then the leads are arrayed in the first lead clamping assembly without changing the arraying positions, at last, the second lead clamping assembly and the first lead clamping assembly are fixed, and arraying and fixing of the leads are achieved.

Description

technical field [0001] The invention relates to a lead wire structure of a large-capacity oil-immersed transformer, in particular to a D-shaped lead wire fixing and clamping device and method. Background technique [0002] With the continuous development of ultra-high voltage and large-capacity transformer technology in my country, the capacity of transformers continues to increase, and the current in the transformer leads continues to increase, resulting in an increase in the cross-section of wires used to connect the transformer coil terminals and the external transformer. As a wire clamp for clamping and fixing the lead wires, the clamping and fixing structure adopted in the prior art cannot meet the ever-increasing weight of the lead wires while not affecting the internal space of the transformer. In the prior art, the wire clamping and fixing structure such as figure 1 As shown, it consists of wire clamp 5 and clamp hoop 6, which are fastened and installed by insulatin...

AI Technical Summary

Problems solved by technology

When using this structure, when the lead wire is bent from the horizontal direction to the longitudinal direction through the wire clamp, the wire needs to be cross-transposed once, and the order of the wire arrangement needs to be changed from two rows and three columns to three rows and two columns. Due to the intersection of the wires, the local arrangement size of the folds becomes larger, and the wires are arranged irregularly; and because the wire clamp 5 is provided with grooves, on the one hand, its strength is reduced, making it unable to bear large weight and a large number of wire structures. On the one hand, it also brings inconvenience to the processing; the clamp hoop 6 matched with it has low structural strength, and the fixing and clamping effect is poor

Images