10kv变配电所一次系统与设计

摘要

引变牵引变电所一次设备的设计是铁路供电设计的重要组成部分。其内容包括主接线形式的选择，短路电流的计算，设备的选择与校验计算等多方面设计内容。

本文的主要设计内容包括：

1. 根据负荷情况确定变压器的容量。

2. 根据实际工程要求与国家设计规范的要求选择主接线形式。

3. 选择了系统中具有典型性的两个短路点，计算他们的短路电流。

4. 根据所得到的短路电流计算结果选择、校验设备。

5. 绘制变电所主接线图、平面俯视图、侧面剖视图。

本文组织如下：第一章，简要叙述了我国电气化铁道供电的基本情况，说明了电力牵引事业在我国建设的重要意义。第二章，详细介绍了与牵电所设计相关的理论与基础知识。其内容主要包括牵引变电所概述，主接线的各种接线形式与设计要求，短路电流计算方法，设备选择与校验方法，平面布置的设计要求等。第三章,呼和浩特东站110KV 牵引变电所一次设备的具体设计。

关键词：牵引变电所，电气主接线，变压器容量

Abstract

Design the first part equipment of the traction substation is one of the important parts of design railway electric power supply. Its content include: select the format of the main connection, count the short circuit current, select and tuning of the equipment and so on.

The main designing of this dissertation includes:

1)Bases on the load determine the capacity of the transformer.

2)Bases on the practice of the practice of the project and the nation design

normative request select the format of the main connection.

3)Select two typical short circuit current select and tuning the equipment.

4)Bases on the result of the short circuit current select and tuning the equipment.

5)Protract three blueprint of the distribute-station.

The dissertation is organized as follows: Section 1; recite the electrification railway in our country. Narrate the magnitude meaning of the electric traction affair to our country construct. Section 2; introduce the theory and basic knowledge about the designing traction substation particularly. Its content include: summarize of the traction substation, the format and design request of the basic circuit, the count method of the short circuit current, the method of the select and tuning of the equipment, disposal of the equipment and so on. Section 3; Concrete design of the HUHEHAOTE 110kV traction substation.

Key words: traction substation; basic circuit; calculation of short circuit；electric equipment；disposal desig

目录

摘要............................................................... I 目录......................................................... III 引言. (1)

绪论 (2)

第1章牵引变电所概论 (5)

1．1 牵引变电所设计概述 (5)

1.2牵引变电所的分类 (5)

1.2.1、牵引变电所按牵引网电流性质的分类 (5)

1.2.2、交流牵引变电所按频率和牵引网相数的分类 (5)

1.2.3、工频单相交流牵引变电所按主变压器结构种类和接线方式的分类 (6)

1.3牵引变电所的设计原则 (6)

1.4牵引网与接触网 (7)

第 2 章电气主接线方案的确定 (8)

2.1 电气主接线概述 (8)

2.2 电气主接线的基本形式 (8)

2.2.1单母线接线 (8)

2.2.2、桥形接线 (9)

2.2.3、简单分支接线（双T接线） (11)

2.3牵引变电所主接线 (12)

2.3.1三相YN,D11接线变压器 (13)

2.3.2单相V,V接线变压器 (13)

2.3.3斯科特接线变压器 (13)

2.4牵引侧主接线 (14)

2.4.1 27.5KV(或55KV)侧馈线的接线方式 (14)

2.4.2 复线铁路斯科特接线变压器AT供电方式馈电线接线。 (15)

2.4.3动力变压器及自用电变压器接线 (16)

2.5主接线方案 (17)