Split coil structure and transformer

Abstract

The present invention discloses a split coil structure. The split coil structure comprises an iron core, a high-voltage winding and a low-voltage winding, the high-voltage winding and the low-voltagewinding are sequentially wound on the iron core, the low-voltage winding comprises n identical winding units arranged in the axial direction, n is larger than or equal to 3, each winding unit comprises m split windings, and m is larger than or equal to 3. The corresponding split windings in each winding unit are respectively connected in parallel. Correspondingly, the invention further discloses atransformer comprising the split coil structure. By adopting the split coil structure, the problem that ampere-turns between high-voltage windings and low-voltage windings of a traditional axial split transformer are seriously unbalanced can be solved, mutual interference of magnetic flux leakage between the split windings can be reduced, the problem that short-circuit impedance between the splitwindings is not matched is solved, and voltage changes output by the split windings are reduced; meanwhile, load loss of the transformer can be reduced, and high efficiency and energy conservation are achieved.

Description

technical field [0001] The invention belongs to the technical field of transformers, and in particular relates to a split coil structure and a transformer including the split coil structure. Background technique [0002] Such as figure 1 As shown, the traditional split transformer structure is generally composed of the same number of split windings arranged in the axial direction of the core for both the high-voltage winding and the low-voltage winding. For example, the high-voltage winding is split into three along the axial direction, and the low-voltage winding is split into three along the axial direction. . [0003] In current industrial production, due to the split structure, most of the traditional split transformers can only achieve the axial three-split structure, and the traditional axial three-split transformers still have certain defects due to structural reasons, such as the magnetic flux leakage between the split windings Uneven interference leads to poor con...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a split coil structure and a transformer containing the split coil structure to solve the problem of impedance and output voltage between each split winding in order to solve the above-mentioned shortcomings of the traditional axial three-split transformer technology. The matching degree is not easy to control, so as to improve the power supply quality of the transformer

Images