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Winding structure improvement method for improving anti-short-circuit capability of transformer

A technology of anti-short-circuit capability and winding structure, applied in the field of electric power, can solve the problem of low strength of transformer windings, and achieve the effect of improving anti-short-circuit capability and improving stability

Active Publication Date: 2021-06-18
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] This application provides a winding structure improvement method to improve the short-circuit resistance of the transformer, so as to solve the problem of low strength of the transformer winding under short-circuit impact

Method used

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  • Winding structure improvement method for improving anti-short-circuit capability of transformer
  • Winding structure improvement method for improving anti-short-circuit capability of transformer
  • Winding structure improvement method for improving anti-short-circuit capability of transformer

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Embodiment Construction

[0021] The embodiments will be described in detail hereinafter, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following examples do not represent all implementations consistent with this application. These are merely examples of systems and methods consistent with aspects of the present application as recited in the claims.

[0022] see figure 1 , is a flow chart of a winding structure improvement method for enhancing the short-circuit resistance capability of a transformer. The application provides a winding structure improvement method for improving the short-circuit resistance capability of a transformer, which includes the following steps:

[0023] S1: Obtain the parameters of the transformer model, and establish a three-dimensional field-circui...

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Abstract

The invention provides a winding structure improvement method for improving the anti-short-circuit capability of a transformer, and the method comprises the following steps: obtaining transformer model parameters, and building a transformer three-dimensional field-circuit coupling electromagnetic field mathematical model; calculating an electromagnetic field of the electromagnetic field mathematical model to obtain an electromagnetic field result; calculating the stress and strain of the electromagnetic field mathematical model at the short-circuit impact moment by taking the electromagnetic field result as a load; analyzing the deformation position of the electromagnetic field mathematical model at the short-circuit moment; and replacing the deformed position with a heat-resistant self-adhesive transposed conductor. The winding structure improvement method for improving the anti-short-circuit capability of the transformer can be applied to transformer windings of different forms, and has important significance in improving the anti-short-circuit capability of the transformer and improving the stability of a power system.

Description

technical field [0001] The present application relates to the field of electric power technology, and in particular to a winding structure improvement method for improving the short-circuit resistance capability of a transformer. Background technique [0002] With the gradual improvement of the power system, the development of electrical equipment technology is gradually approaching maturity. The transformer is an important electrical equipment in the power system. In order to ensure the safe and stable operation of the power system, the stable operation of the transformer is very important. [0003] Transformer short-circuit faults are relatively easy to occur in electrical accidents, so improving the short-circuit resistance of transformers has always been a hot research area for experts and scholars in the transformer industry. At present, strengthening the winding strength is the simplest and most effective way. At present, self-adhesive transposition wires are often us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20H01F41/04
CPCG06F30/20H01F41/04Y02E60/00
Inventor 邹德旭王山颜冰代维菊洪志湖钱国超彭庆军朱家良
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST