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Модернизация элегазового выключателя 330кВ, 40кА

выпускная квалификационная работа бакалавра

Модернизация элегазового выключателя 330кВ, 40кА

Abstract

Работа посвящена исследованию отключающей способности автокомпрессионного дугогасительного устройства с элегазовой изоляцией. Задачи, решённые в ходе выполнения работы: 1. Изучение современных высоковольтных газовых выключателей с автокомпрессионным дугогасительным устройством. 2. Изучение достоинств и недостатков автокомпрессионных дугогасительных устройств и путей их модернизации. 3. Исследование применимости модели лучистой теплопроводности для дугогасительных устройств и определение входящего в модель коэффициента. 4. Проведение сравнительного анализа отключающей способности для различных модернизаций дугогасительных устройств. В работе изучены конструкция автокомпрессионного дугогасительного устройства современного газового выключателя и пути ее модернизации с целью увеличения отключающей способности. Показана возможность использования модели лучистой теплопроводности для описания теплоотвода от дуги в сильноточной фазе в дугогасительном устройстве. Исследовано взаимодействие выключателя 330 кВ, 40 кА с сетью. Проведены численные эксперименты, позволяющие оценить отключающую способность в модернизированном дугогасительном устройстве. Показана принципиальная возможность увеличения отключающей способности при использовании предложенной модернизации.

The work is devoted to the study of tripping ability of the autocompression arc chamber with SF6-insulation. The tasks accomplished in the course of the work: 1. Study of modern high-voltage gas circuit breakers with autocompression arc chamber. 2. Study of advantages and disadvantages of autocompression arc chambers and ways of their modernization. 3. Carrying out a comparative analysis of tripping capacity for different modernizations of arc chambers. The paper studies the design of autocompression arc chamber of modern gas circuit breaker and ways of its modernization in order to increase the tripping capacity. The influence of pressure and speed of current approach to zero on the tripping capacity on the basis of experimental data has been analyzed. The interaction of 330 kV, 40 kA circuit breaker with the network is investigated. Numerical experiments allowing to estimate the tripping capacity in the modernized arc-quenching device are carried out. The possibility in principle to increase the tripping capacity using the proposed modernization is shown.

Keywords

radiation, sf6 insulation, radiant heat conduction model, элегазовая изоляция, модель лучистой теплопроводности, модернизация автокомпрессионного дугогасительного устройства, high voltage circuit breaker, излучение, modernization of the auto-puffer arc chamber, высоковольтный выключатель

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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