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Stator core winding of high-voltage generator

A generator stator and iron core winding technology, applied in the shape/style/structure of the winding conductor, the shape/style/structure of the magnetic circuit, the static parts of the magnetic circuit, etc., can solve the problem of easy deformation and more harmonics , The strength of the end of the stator winding is not enough, etc., to improve the waveform distortion, suppress the neutral third harmonic current, and the neutral to ground voltage is small

Inactive Publication Date: 2014-02-12
无锡星诺电气有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As we all know, the stator core is an important part of the high-voltage generator. At present, the stator core of the existing high-voltage generator adopts a straight slot structure, which is easy to generate more harmonics; the strength of the end of the stator winding is not enough, and it is easy to deform.

Method used

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  • Stator core winding of high-voltage generator
  • Stator core winding of high-voltage generator

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Embodiment Construction

[0018] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0019] see figure 1 with figure 2 As shown, in this embodiment, a high-voltage generator stator core winding includes a front pressure ring 1, a rear pressure ring 2, and a stator core 3 arranged between the front pressure ring 1 and the rear pressure ring 2. The stator The iron core 3 is formed by superimposing a plurality of punching sheets, the punching sheets are made of cold-rolled silicon steel sheets, and the stator winding 4 is wound on the stator iron core 3, and the tooth slots of the stator iron core 3 are oblique Slot 5, effectively reducing the generation of harmonics. The stator winding 4 adopts the VIP vacuum pressure impregnation process, which ensures that the gaps in the slots are filled in place, has good overall performance, and improves the heat dissipation effect of the moto...

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Abstract

The invention discloses a stator core winding of a high-voltage generator. The stator core winding comprises a front pressing ring, a rear pressing ring and a stator core, wherein the stator core is arranged between the front pressing ring and the rear pressing ring and formed by stacking a plurality of punching sheets, the punching sheets are made of cold rolling silicon steel sheets, and a stator winding is wound on the stator core. A tooth slot of the stator core is of a taper slot structure, the stator winding is a forming lap winding with the 2 / 3 pitch, and a plurality of reinforcing ribs are welded and fixed to the periphery of the stator core. By the adoption of the stator core winding of the high-voltage generator, harmonics can be effectively reduced, third harmonic voltages can be effectively eliminated, and waveform distortion of the voltages are improved; in parallel operation, large neutral harmonic currents can be restrained, and neutral voltages to earth are small; the strength of the end portion of the stator winding is enhanced, and the stator winding is not prone to deforming.

Description

technical field [0001] The invention relates to a high-voltage generator, in particular to a stator core winding of a high-voltage generator. Background technique [0002] Due to the large-scale and energy-saving requirements of modern industry, large and medium-sized high-voltage asynchronous motors and high-voltage synchronous motors are widely used in petroleum, chemical, power station, waterworks, mining and metallurgical enterprises to drive water pumps, fans, air compressors and pulverizers. . The reason is that large and medium-sized high-voltage motors have a large ratio, and medium-sized low-voltage motors have obvious advantages in capacity, and are more efficient and energy-saving. High-voltage motors can be directly connected to 10kV or 6kV power grids without the need for high-voltage and low-voltage transformers to change to 400V (or 380V) power supply. The equipment investment is small, the line loss is small, and the cross-sectional area of ​​the distributio...

Claims

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Application Information

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IPC IPC(8): H02K1/16H02K3/04
Inventor 曾元春
Owner 无锡星诺电气有限公司
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