Three-phase stereoscopic fracture-type rolled iron core

Abstract

The invention relates to a three-phase stereoscopic fracture-type rolled iron core which is used for a transformer of the three-phase stereoscopic fracture-type rolled iron core. The three-phase stereoscopic fracture-type rolled iron core comprises three identical single-frame iron cores, wherein each single-frame iron core is formed by sequentially connecting a plurality of inner layer iron core sheets and a plurality of outer layer iron core sheets in a sleeving manner; an upper fracture seam is only formed at the upper yoke part of each inner layer iron core sheet of each single-frame iron core; the upper fracture seams of the two adjacent inner layer iron core sheets are formed in a staggered manner; each outer layer iron core sheet of each single-frame iron core is provided with a left fracture seam at the upper part of a left side iron core pillar, close to the upper yoke part, and is provided with a right fracture seam at the upper part of a right side iron core pillar, close to the upper yoke part; the left fracture seams of the two adjacent outer layer iron core sheets are formed in a staggered manner; and the right fracture seams of the two adjacent outer layer iron core sheets are formed in a staggered manner. The transformer made of the three-phase stereoscopic fracture-type rolled iron core has the characteristics of superior electromagnetic performance, short magnetic circuit, low field current, low no-load loss, small harmonic wave, low noise, small size, light weight, material conservation, energy conservation and the like.

Description

technical field [0001] The invention relates to a three-phase three-dimensional fractured wound iron core, which is used for a three-phase three-dimensional fractured wound wound iron core transformer, and is suitable for both oil-based transformers and various dry-type transformers. Background technique [0002] The traditional three-phase three-dimensional wound core transformer core is a closed single-frame core with three identical semi-circular cross-sections wound by continuous silicon steel strips. Three-phase transformer core. The biggest problem of the three-phase three-dimensional closed wound core transformer is that the coil must be wound on the finished core column, which makes the product manufacturing process poor, the production efficiency is low, the quality is not easy to control, and the product maintenance is difficult. Only small capacity transformers can be manufactured. Products, manufacturers need to invest a lot of special equipment and other reason...

AI Technical Summary

Problems solved by technology

The biggest problem of the three-phase three-dimensional closed-type wound core transformer is that the coil must be wound on the finished core column, which makes the product manufacturing process poor, the production efficiency is low, the quality is no

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