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POWER TRANSFORMER DESIGN, CONSTRUCTION AND FIELD ASSEMBLY

机译：电力变压器的设计，施工和现场组装

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摘要

Power transformers are the heart of every electrical transmission and distribution system. The power transformer concept was first conceived and developed in the late 1800's by Faraday, Maxwell, and Tesla, and put into common practice by people like Edison and Westinghouse. Since then, the basic concept of the transformer has remained the same for over 100 years, however, design and construction techniques have continually improved to increase both the overall efficiency and cost effectiveness of manufactured units. This paper will examine the basics of transformer design, construction and field installation focusing on details to ensure longevity of an installed unit. In general, power transformers refer to liquid filled units and are loosely divided into 3 size categories, small power―under 10 MVA, medium power―10 to 50 MVA, and large power above 50 MVA. These are not official categories as recognized by ANSI/CSA/IEEE, but are more often ranges referred to by consultants and manufacturers when specifying or building transformers. For example, a transformer manufacturer that builds units in the size range of 10 to 300 MVA will often have one plant facility that builds up to 50 MVA and then another plant that only builds units above 50 MVA and they will refer to these plants as their medium and large power assembly manufacturing facilities respectively.
机译：电力变压器是每个输配电系统的心脏。电力变压器的概念最早是由法拉第，麦克斯韦和特斯拉在1800年代后期构思和发展的，并由爱迪生和西屋等人付诸实践。从那时起，变压器的基本概念一直保持100多年不变，但是，设计和建造技术也在不断改进，以提高制造单元的整体效率和成本效益。本文将研究变压器设计，建造和现场安装的基础知识，重点关注细节以确保已安装单元的使用寿命。通常，电力变压器是指充满液体的单元，大致分为3种尺寸类别：10 MVA以下的小功率，10至50 MVA的中功率和50 MVA以上的大功率。这些不是ANSI / CSA / IEEE认可的官方类别，但在指定或制造变压器时，通常是顾问和制造商所指的范围。例如，建造10到300 MVA范围内的设备的变压器制造商通常会拥有一个工厂设施，最多可容纳50 MVA，然后另一个工厂仅建造50 MVA以上的设备，他们将这些工厂称为中型和大型动力总成制造设施。

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