110/35KV变电站电气控制初步设计(附CAD图)(论文说明书13000字,CAD图纸4张)
摘要
按照毕业设计任务书的主要要求，根据任务书可知本次毕设内容为110/35KV变电站电气控制的初步设计。主要有主接线、短路电流计算、设备的选择和保护等。根据实际工程进行变电站的设计，并依据据参考书以及其他资料，进行合理的计算。然后据计算结果进行主接线的选择，并保证主接线的可靠性、灵活性、经济性等。对短路点进行短路电流计算，并对设备进行选择，按照数据对设备进行动稳定、热稳定的校验。保证设备的可靠性、稳定性、灵活性，同时也要尽可能选用先进设备。通过计算对变电站进行防雷接地以及继电保护，选择正确的防雷接地装置。最后，需要对整个变电站的仪表进行汇总，并对变电站的整体进行合理科学的规划布置，保证变电站能够长久、稳定的运行
关键词：变电站、主接线、短路电流、设备选择、防雷接地、整体规划
Preliminary design of electrical control in 110/35KV substation
Abstract
According to the main requirements of the graduation design task book, according to the task book, we can know that the completion of the completion of the 110/35KV substation electrical control of the preliminary design. The main wiring, short-circuit current calculation, equipment selection and protection, etc.. According to the actual engineering design of substation, and according to the reference books and other information, to carry out a reasonable calculation. Then according to the results of the calculation of the main wiring options, and to ensure the reliability of the main wiring, flexibility, economy, etc.. Short circuit current calculation of the short-circuit point, and the equipment selection, according to the data of the equipment into a stable, thermal stability of the check. Ensure equipment reliability, stability, flexibility, but also as far as possible the use of advanced equipment. Through the calculation of the substation lightning protection grounding and relay protection, choose the correct lightning protection and grounding device. In the end, it is necessary to summarize the instrument of the whole substation, and carry on the reasonable and scientific layout of the substation, so as to ensure the substation can run long and stably.
Key words: substation main wiring, short-circuit curren; equipment selection, lightning protection and grounding, the overall planning
目录
摘要………………………………………………………………………Ⅰ
ABSTRACT……………………………………………………………………Ⅱ
第一章 概论
1.1变电站基本原理………………………………………………1
1.2变电站简要分类……………………………………………1
1.3原始资料……………………………………………1
第二章 电气主接线的设计………………………………………2
2.1电气主接线设计的概念………………………………3
2.2电气主接线设计规范………………………………3
2.3电气主接线设计的基本要求：……………………………3
2.4主接线方案………………………………………3
第三章 主变压器的确定……………………………………………7
3.1选择原则…………………………………………………7
3.2变压器容量的选择………………………………………7
3.3主变压器选型……………………………………………7
第四章 短路电流的计算……………………………10
4.1短路电流计算的概述……………………………10
4.2短路计算的一般规定……………………………………10
4.3短路电流计算………………………………………10
第五章 电气设备选择以及校验……………………………………16
5.1选取设备的一些基本常见措施……………………………………16
5.2短路稳定校验……………………………17
5.3母线的选择与校验…………………………18
5.4 高压断路器的选型…………………………19
5.5 隔离开关的选择………………………………21
5.6互感器的选择…………………………………………23
5.7电流互感器……………………………………………25
5.8 电气设备一次设备选择结果………………………………26
5.9高压熔断器的选择………………………………………27
第六章 变电所配电布置和防雷保护以及无功补偿…………………29
6.1变电所配电布置……………………………29
6.2变电站防雷与接地设计………………………29
6.3雷电过电压的形成与危害………………………29
6.4变电站接地装置…………………………………29
6.5雷电载入波的过压保护…………………………32
6.6无功补偿的概念……………………………32
6.7无功补偿的基本要求……………………33
6.8补偿装置的测定…………………………33
第七章 变电所总体布置………………………34
7.1总体规划…………………………34
7.2总平面布置………………………34
结语…………………………………35
参考文献……………………………36
致谢……………………………………37
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