Paper-covered wire of transformer winding coil

Abstract

The invention discloses a paper-covered wire of a transformer winding coil. The paper-covered wire comprises a varnished wire, a varnished layer and a paper-covered layer, wherein the varnished wire is made of a copper material, and the outer end of the varnished wire is wrapped with the varnished layer; and the outer side of the varnished layer is wrapped with a layer of paper-covered layer. According to the paper-covered wire, the purpose of single insulation stability is achieved, meanwhile, the peristaltic property is increased, the production efficiency is improved, the size of the wire can be ensured to be appropriate, and the paper-covered wire is suitable for being used for ultrahigh-voltage and high-capacity transformers.

Description

technical field [0001] The invention relates to the technical field of winding wires, in particular to a paper-covered wire of a transformer winding coil. Background technique [0002] In the traditional production, the insulation of a single paper-covered wire is 0.15mm, and a backing paper is added before the single wire combination. When the size of the wire is less than 10cm, the area of ​​the bearing paper is reduced. The insulation requirements of paper-covered wires are very strict. However, in actual production, a single backing paper has a series of problems such as deviation and breakage. To sum up, so I designed a paper-wrapped wire for transformer winding coils. Contents of the invention [0003] The purpose of the present invention is to provide a paper-wrapped wire of a transformer winding coil, cancel the backing paper between the single wires, add a layer of insulation to the single insulated wire, increase the peristalsis at the same time, and ensure that...

AI Technical Summary

Problems solved by technology

[0002] In the traditional production, the insulation of a single paper-covered wire is 0.15mm, and a backing paper is added before the single wire combination. When the size of the wire is less than 10cm, the area of ​​the bearing paper is reduced. The insulation requirements of paper-covered wires are very strict. However, in actual production, a single backing paper has a series of problems such as deviation and breakage.

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