毕业论文某化工压变电所电气设计.doc

郑州电力职业技术学院毕业生论文 题目：＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ 系 别＿＿＿＿＿＿＿＿＿＿＿专 业＿＿＿＿＿＿＿＿＿＿＿班 级＿＿＿＿＿＿＿＿＿＿＿学 号＿＿＿＿＿＿＿＿＿＿＿姓 名＿＿＿＿＿＿＿＿＿＿＿ 论文成绩指导教师答辩成绩主答辩教师综合成绩答辩委员会主任 PAGE \* MERGEFORMAT V摘 要本文根据某化纤厂负荷情况原始资料详细介绍，完成某化工降压变电所电气设计。文中对供电电压的选择、主接线的设计、负荷计算、短路电流计算、高压设备的选择,继电保护选择和整定计算等内容皆有详细的说明。特别对主接线的选择,变压器的选择通过无功功率补偿,负荷计算利用需要系数法，短路电流计算利用标幺值法，还有一些电气设备如断路器、电流互感器、电压互感器等的选择校验作了详细的说明、分析和计算。其中还对变电所的主接线等通过Microsoft Office Visio制图直观的展现出来。关键字：电气主接线、短路电流计算、高压电气设备、继电保护AbstractAccording to a source waste-water from load conditions to complete a detailed introduction of electrical design chemical step-down substation. In this paper, the main supply voltage choice wiring design, load calculation, short-circuit current calculation, high pressure equipment choice, relay protection choice and setting calculation content is detailed instructions. Especially for the Lord, the choice of transformer wiring choice through the reactive power compensation, load calculation using need coefficient method, using standard short-circuit current calculation method of what value, and some electrical equipment such as circuit breaker, current transformer, voltage transformer, etc choice made detailed descriptions of calibration, analysis and calculation. The Lord of substation including Visio through Microsoft Office such as wiring the show. Graphics intuitive[11].Keywords：main electrical connection table the calculation of short current the protection of relay High-voltage electrical equipment目 录 TOC \o 1-3 \f \h \z \u TOC \o 1-3 \h \z \u HYPERLINK \l _Toc293651834 第一章 引言 PAGEREF _Toc293651834 \h 1 HYPERLINK \l _Toc293651835 1.1 设计的原始资料 PAGEREF _Toc293651835 \h 1 HYPERLINK \l _Toc293651836 1.2 设计的基本原则： PAGEREF _Toc293651836 \h 2 HYPERLINK \l _Toc293651837 1.3 设计的主要内容 PAGEREF _Toc293651837 \h 2 HYPERLINK \l _Toc293651838 第二章 主接线的设计 PAGEREF _Toc293651838 \h 3 HYPERLINK \l _Toc293651839 2.1 电气主接线的概述 PAGEREF _Toc293651839 \h 3 HYPERLINK \l _Toc293651840 2.2 电气主接线基本要求 PAGEREF _T