transformer

A transformer and winding technology, applied in the field of transformers, can solve the problems of increasing the cost and volume of transformers, improving and unfavorable system power density, etc., and achieve the effect of reducing partial discharge phenomenon and high reliability

Active Publication Date: 2021-07-30
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the large number of transformers in the system, this method significantly increases the cost and volume of the transformers, which is not conducive to the improvement of system power density

Method used

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Embodiment Construction

[0031] 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 embodiments 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 same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0032] The transformer of the present invention includes a magnetic core 1, a first winding 2, and a second winding 3. Partial discharges are prone to occur between the second winding 3 and the magnetic core 1. The inventive concept of the present invention is to reduce the distance between the second winding 3 and the magnetic core. The voltage, thereby reducing the electric field strength between the two; reducing the risk o...

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Abstract

The invention provides a high reliability transformer, which includes a magnetic core, a first winding and one or more sets of second windings. The magnetic core has a window; a first winding passes through the window of the magnetic core, and the first winding does not contact the magnetic core; one or more sets of second windings pass through the magnetic core a window, the second winding is wound on the magnetic core; there is a distance between the second winding and the first winding, and a semiconducting part is arranged between the second winding and the magnetic core. The invention can effectively reduce the risk of partial discharge between the second winding and the magnetic core, so the transformer of the invention has high reliability.

Description

technical field [0001] The invention relates to a transformer. Background technique [0002] Medium and high voltage systems such as MVD and SVG may contain hundreds of magnetic components such as toroidal transformers, etc. Magnetic components occupy a considerable proportion of volume, weight and loss. Modern industry puts forward higher requirements on the power density of the system, expecting the system to have smaller volume, higher power density and reliability. However, reducing the size of the transformer poses a challenge to the reliability of the system. Partial discharges are prone to occur between the various components of the transformer. The mixture of ozone generated by the partial discharge and moisture in the air has a strong corrosion effect on the insulating material, thus affecting the transformer and even The safety and reliability of the whole system. [0003] At present, in terms of controlling the partial discharge of transformers, the traditional ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/24H01F27/30H01F27/40
CPCH01F27/24H01F27/306H01F27/402H01F27/2895H01F27/325H01F30/16H01F2027/329H01F27/2828
Inventor 董建星应建平刘腾
Owner DELTA ELECTRONICS INC
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