Transformer device for novel combined wire winding three phase arc welder

Abstract

The invention discloses a transformer for a novel combination type winding three phase arc welder, comprising an iron core post and three phase windings, wherein one or two windings among the three phase windings are concentric type windings, the other windings are overlapping type windings; because the same three phase winding adopts the combination structure of the concentric type windings and the overlapping type windings simultaneously, the transformer has the advantages of good and proper dynamic performance, relatively few inductances needed to be adjusted and effectively lowering manufacturing cost, along with good versatility.

Description

technical field [0001] The invention relates to a transformer, in particular to a novel composite winding three-phase electric welding machine transformer. Background technique [0002] Current transformers for three-phase electric welding machines have two winding structures, which are concentric windings or stacked windings. Among them, referring to Figure 1, it is a schematic structural diagram of a three-phase electric welding machine transformer using concentric windings in the prior art. The concentric windings are to arrange the high and low voltage windings concentrically on the same core column, with the low voltage winding inside and the high voltage winding On the outside, or the low-voltage winding is on the outside, and the high-voltage winding is on the inside. Referring to Figure 2, it is a structural schematic diagram of a three-phase electric welding machine transformer using stacked windings in the prior art. The stacked winding is to divide the high and l...

AI Technical Summary

Problems solved by technology

The three phases of the existing transformers for three-phase electric welding machines usually use concentric windings with the same three phases or stacked windings with the same three phases as shown in the figure. For the structure of the three-phase welding machine transformer, its dynamics are too good and the induction is too good, resulting in a large splash, which requires a large inductance, resulting in high cost; and for the structure of the three-phase welding machine transformer with consistent stacked windings , which has the disadvantages of low current and non-universal use, or when the current is large, its dynamic performance is poor, resulting in a decrease in filling rate and production efficiency

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