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Элегазовый трансформатор тока 750 кВ

бакалаврская работа

Элегазовый трансформатор тока 750 кВ

Abstract

Задачей работы является выбор конструкции и Ð¾ÑÐ½Ð¾Ð²Ð½Ñ‹Ñ Ñ€Ð°Ð·Ð¼ÐµÑ€Ð¾Ð² высоковольтной части трансформатора тока ТГФ-750 кВ, ÑƒÐ´Ð¾Ð²Ð»ÐµÑ‚Ð²Ð¾Ñ€ÑÑŽÑ‰Ð¸Ñ Ð·Ð°Ð´Ð°Ð½Ð½Ñ‹Ð¼ Ñ‚ÐµÑ Ð½Ð¸Ñ‡ÐµÑÐºÐ¸Ð¼ условиям. Ð’ Ñ Ð¾Ð´Ðµ работы была предложена конструкция трансформатора тока и выполнены оптимизационные расчёты, позволившие выбрать основные размеры высоковольтной системы. Показано, что напряжённость электрического поля в газовой изоляции, а также в Ð²Ð¾Ð·Ð´ÑƒÑ Ðµ на внешней стороне трансформатора не превышает допустимого уровня. Для уменьшения размеров аппарата предложено использовать диэлектрический экран с высокой диэлектрической проницаемостью. Показано, что при толщине экрана, равной 1 мм и при относительной диэлектрической проницаемости, равной 800, радиус изолирующей оболочки может быть уменьшен на 20%, что соответствует уменьшению объёма на 40%. Это даёт возможность изготовить аппарат класса 750 кВ в Ñ€Ð°Ð·Ð¼ÐµÑ€Ð°Ñ , Ñ Ð°Ñ€Ð°ÐºÑ‚ÐµÑ€Ð½Ñ‹Ñ Ð´Ð»Ñ класса 500 кВ.

The aim of the work is the design and choice of size of the high-voltage transformer of the TGF-750 kV, satisfy the given specifications. In the course of the workthe current transformer design was proposed and the optimization calculations carried out, allowing to select the main dimensions of the high-voltage system. It is shown that the electric field in the gas insulation, and in the air on the outer side of the transformer does not exceed the permissible level. To reduce the size of the device is proposed to use a screen with high dielectric permittivity. It is shown that the radius of the insulating cover can be reduced by 20%, which corresponds to a reduction of volume of 40%. This makes it possible to produce a level of 750 kV machine in size, characteristic of the level 500 kV.

Keywords

трансформатор тока, current transformer, electric field high-voltage shielding, электрическое поле, высоковольтное экранирование, electric field strength

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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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