Transformer

Abstract

The invention discloses a transformer with low-voltage copper busbars having no affect on winding sections and leads. The transformer comprises an iron core, three coils respectively wrapped on the iron core, upper pair and lower pair of pressing plates which are used to fix the iron core, three high-voltage leads which are arranged on the pressing plate on one side of the iron core, an even number of low-voltage copper busbars which are arranged on the other side of the iron core and are respectively connected through the leads and the coils, and low-voltage copper busbars which are arranged on the coils on one side of a high-voltage lead and respectively connected with the same number of low-voltage copper busbars on the other side of the iron core through the leads. The invention has the beneficial effects that low-voltage copper busbars are arranged on the coils at one side of the high-voltage lead with the same number of the low-voltage copper busbars on the other side of the iron core respectively through the leads; and since the requirement of the original transformer production process is satisfied, the total size of each low-voltage copper busbar can be reduced to half and the weight can be reduced to half. The lightweight low-voltage copper busbars cannot shift the winding section in the coil and the lead connected with the winding section, and further cannot cause a short circuit of the transformer.

Description

technical field [0001] The invention relates to a transformer. Background technique [0002] Such as figure 1 and figure 2 As shown, the transformer includes an iron core 1, three coils 9 respectively wrapped on the iron core 1, two pairs of upper and lower pressure plates 2 that fix the iron core 1, and three high-voltage lead wires 3 arranged on the pressure plate 2 on one side of the coil 9 And twelve low-voltage copper bars 5 connected to the coil 9 through lead wires 4, four low-voltage copper bars 5 are connected to each coil 9, and the high-voltage lead wires 3 and the low-voltage copper bars 5 are respectively located on both sides of the coil 9. There are four winding segments (not shown in the figure) on each coil 9, and each winding segment is connected to its corresponding lead wire 3 respectively. When the above-mentioned transformer is used in a workplace with high current (generally referring to a current above 20kA), according to the technical requirement...

AI Technical Summary

Problems solved by technology

This brings great difficulties to the assembly process of the transformer.

For example, the operator needs to install the low-voltage copper bar 5 with the help of transportation tools, and because the gravity of the low-voltage copper bar 5 is relatively large, the low-voltage copper bar 5 is easily displaced after installation, which makes the coil 9 connected to the lead wire 4 Adjacent winding segments of the transformer will contact and generate friction. Once the insulation layer on the winding segment or lead 4 is worn, it is easy to cause a short circuit of the transformer, and eventually lead to the destruction of the operation of the entire transformer.

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