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High voltage coil, manufacturing method of high voltage coil and transformer

A technology of high-voltage coils and manufacturing methods, which is applied in coil manufacturing, transformer/inductor magnetic cores, transformer/inductor components, etc., can solve the problems of partial discharge performance degradation, prevent cracking, improve partial discharge performance, and avoid Effect of Internal Air Gap Defects

Active Publication Date: 2022-04-05
DELTA ELECTRONICS INC
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0007] In order to solve the design problem of the insulation structure of the transformer, improve the shortcomings of the partial discharge performance of the transformer due to internal air gap defects, and improve the electric strength of the overall insulation structure of the transformer, the disclosure proposes a cast high-voltage coil and its manufacturing method , and the transformer to which the high-voltage coil is applied

Method used

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  • High voltage coil, manufacturing method of high voltage coil and transformer
  • High voltage coil, manufacturing method of high voltage coil and transformer
  • High voltage coil, manufacturing method of high voltage coil and transformer

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Embodiment Construction

[0075] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details being omitted, or other methods, components, devices, steps, etc. may be adopted. In other instances, well-known technical solution...

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Abstract

The disclosure provides a high-voltage coil, a manufacturing method of the high-voltage coil, and a transformer. The manufacturing method of the high-voltage coil includes: using the first casting material to form the winding skeleton; using the wire to wind the winding on the winding skeleton; assembling the winding in the shell; using the second pouring material to cast between the winding skeleton and the shell , so that the second casting material is completely filled in the winding skeleton and the shell. The high-voltage coil manufacturing method provided in the present disclosure can manufacture a high-voltage coil with good insulation properties.

Description

technical field [0001] The present disclosure relates to the technical field of high voltage and insulation, and in particular, relates to a casting high-voltage coil, a manufacturing method thereof, and a transformer using the high-voltage coil. Background technique [0002] In the power system, the transformer is an important part to realize the transmission of electric energy, and its performance has a great impact on the reliability of the power system and the quality of electric energy. [0003] Power frequency transformers, especially dry-type transformers, are widely used in power systems due to their advantages of fire and moisture resistance, high reliability, small size, and light weight. Dry-type transformers usually use a casting process to encapsulate the windings to achieve insulation, but there is still a risk of partial discharge. Taking the insulation design of epoxy casting dry-type transformers and casting voltage transformers as examples, the problems th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F41/00H01F41/064H01F41/12H01F27/30H01F27/32
CPCH01F41/00H01F41/064H01F41/125H01F41/127H01F27/306H01F27/324H01F27/327H01F27/2823H01F27/325H01F27/022H01F41/098H01F27/24
Inventor 郭世忠张全良
Owner DELTA ELECTRONICS INC
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