工厂供配电课程设计_secret[1]

工厂供配电的电气设计

电气与信息工程学院

课

设 计

指导老师：

设计成员：

设计组： 第六组

班级： 电气工程及其自动化

工厂供配电的电气设计

摘 要

本说明书叙述了对一个年产量为万吨聚乙烯塑料制品工厂全厂总配变电所及配电系统的设计。本设计首先根据厂方给定的全厂各车间电气设备及车间变电所负荷计算表进行电力负荷计算，然后根据对计算负荷的分析选定主变压器和各车间变电所的变压器型号及其联接组别，在设计中根据本厂供电电源和厂供电要求进行架空线行短路电流的计算作为各设备的选型依据。考虑到对变压器的保护

在设计中对主变压器设置了以下继电保护：瓦斯保护、过电流保护和电流速断保护。

关键词：电力负荷计算、无功补偿、短路电流计算、继电保护。

工厂供配电的电气设计

目 录

1.设计任务及原始资料

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1

1.1 设计任务···············································································1 1.2 原始资料···············································································1 1.3 电力负荷计算·······································································1

2.变电所高压电气设备选型

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2.1 补偿电容器选择···································································3 2.2 主变压器的选择···································································3 2.3 各变电所变压器选择···························································3 2.4

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3.·······················································

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3.1 三相短路电流计算目的························································5 3.2 短路电流计算公式·······························································5 3.3 各母线短路电流列表···························································6

4.主变压器继电保护

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