欢迎来到天天文库
浏览记录
ID:322619
大小:649.50 KB
页数:35页
时间:2017-07-23
《火力发电厂电气一次部分 毕业设计》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、目录前言····························································1摘要及关键词····················································2第1章主接线的设计·············································31.1发电机台数和参数的确定··································31.2变压器台数和参数的确定········
2、·························31.3厂用电的设计的确定·····································41.4220kV主接线的设计·····································6第2章短路电流计算点的确定和短路计算结果······················92.1短路电流计算点的确定····································92.2短路电流计算····················
3、························9-34-2.3短路电流计算结果·······································16第3章主要电气设备的配置和选择································163.1主要电气设备的配置······································163.2主要电气设备的选择······································17第4章所选电气设备的校验····
4、···································214.1断路器的校验············································224.2隔离开关的校验··········································234.3电流互感器的校验········································234.4母线的校验···········································
5、···25第5章继电保护的配置和考虑······································25-34-5.1概述·····················································255.2发电机保护配置···········································275.3变压器的保护配置········································29结论··················
6、···········································30谢辞·····························································31参考文献·························································32附录一所选设备一览表············································33附录二电气主接线·············
7、···································35前言毕业设计是我们在校期间最后一次综合训练,它将从思维、理论以及动手能力方面给予我们严格的要求。使我们综合能力有一个整体的提高。它不但使我们巩固了本专业所学的专业知识,还使我们了解、熟悉了国家能源开发策略和有关的技术规程、规定、导则以及各种图形、符号。它将为我们以后的学习、工作打下良好的基础。-34-能源使社会生产力的重要基础,随着社会生产的不断发展,人类使用能源不仅在数量上越来越多,在品种及构成上也发生了很大的变化。人类
8、对能源质量也要求越来越高。电力使能源工业、基础工业,在国家建设和国民经济发展中占据十分重要的地位,是实现国家现代化的战略重点。电能也是发展国民经济的基础,使一种无形的、不能大量存储的二次能源。电能的发、变、送、配和用电,几乎是在同时瞬间完成的,须随时保持功率平衡。要满足国民经济发展和要求,电力工业必须超前发展,这是世界发展规律。因此,做好电力规划,加强电网建设,就尤为重要。而变电站在改变或调整电压等方面在电力系统中起着重要的作用。它承担着变换电压、接受和分配电能、控制电力的流向和调整电压的责任。
此文档下载收益归作者所有