High-voltage low-pass filter and design method thereof

A low-pass filter and high-voltage technology, which is applied in the direction of instruments, electrical measuring instrument parts, measuring devices, etc., can solve the problems of power interference test, difficulty in carrying out, and increase of short-circuit impedance

Pending Publication Date: 2019-03-19
BEIJING HUATIAN MECHANICAL ELECTRICAL INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The partial discharge test is a routine test in the production and design process of power transformers with a voltage level of 110kV and above and most dry-type power transformers. The test power supply mostly uses generator sets. Due to the different equipment conditions of each manufacturer, the test conditions are very different. , Most of the generator sets, intermediate transformers and other equipment in transformer manufacturers are outdated, and the power supply of the test station is mixed with the production power of the workshop. Therefore, the background noise is very large during the partial discharge measurement, which affects the accuracy of the test measurement, and eve

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  • High-voltage low-pass filter and design method thereof
  • High-voltage low-pass filter and design method thereof
  • High-voltage low-pass filter and design method thereof

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[0033] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0034] figure 1 It is a single structure diagram of the high-voltage low-pass filter 10 according to the present disclosure.

[0035] Such as figure 1 As shown, the single structure of the high-voltage low-pass filter 10 of the present disclosure includes a reactor 101 and a capacitor 103, and also includes voltage equalizing rings 105-1 and 105-2. Each single cell structure is a half-filter structure, that is, includes a reactor 101 and a capacitor 103 connected in series with each other.

[0036] Such as figure 1 Sho...

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Abstract

The invention provides a high-voltage low-pass filter. The filter comprises an electric reactor and a capacitor, and the high-voltage low-pass filter is a low-pass filter with the voltage grade of 100kV or higher. The high-pressure low-pass filter further comprises a grading ring located at the top of the high-voltage low-pass filter and between the electric reactor and the capacitor of the high-voltage low-pass filter, so that the electric field intensity of the surface of a high-voltage electrode is reduced. The invention further provides a method for designing the high-voltage low-pass filter.

Description

technical field [0001] The invention relates to the field of low-pass filters. More specifically, it relates to a high-voltage low-pass filter and a design method thereof. Background technique [0002] The partial discharge test is a routine test in the production and design process of power transformers with a voltage level of 110kV and above and most dry-type power transformers. The test power supply mostly uses generator sets. Due to the different equipment conditions of each manufacturer, the test conditions are very different. , Most of the generator sets, intermediate transformers and other equipment in transformer manufacturers are outdated, and the power supply of the test station is mixed with the production power of the workshop. Therefore, the background noise is very large during the partial discharge measurement, which affects the accuracy of the test measurement, and even a lot of power supply interference makes the test difficult. conduct. [0003] At presen...

Claims

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Application Information

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IPC IPC(8): G01R31/14G01R31/12G01R1/30H03H7/01
CPCG01R31/14G01R1/30G01R31/1227H03H7/0115H03H7/0153
Inventor 金学斌
Owner BEIJING HUATIAN MECHANICAL ELECTRICAL INST
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