方兴 变压器微机继电保护仿真分析.doc
《方兴 变压器微机继电保护仿真分析.doc》由会员分享,可在线阅读,更多相关《方兴 变压器微机继电保护仿真分析.doc(27页珍藏版)》请在三一文库上搜索。
1、1, coal mines, mine are in charge of the water control work responsibility, and (b) specifically responsible for the technical management of water prevention and control work. A, Chief Engineer, mine b, c, geology, geological survey Vice President d section 2, coal mines, mine should be the preparat
2、ion of the medium-and long-term planning and control water (a) plans, and their implementation. A, year b, quarters c, 3, coal mines, mine should be (a) for water education and training to ensure employees have the necessary knowledge of water control, improving water control work skills and the abi
3、lity to resist water damage. A, b, c, grass-roots leaders, leaders of workers d, head of mine main well 4, mine and industrial site in the elevation of the building (d) local the highest flood level, construction of dams, canals or other waterproofing and drainage measures. A, is equal to b, no high
4、er than c, higher than d, less than 5, mine main pumping station should be at least (b) exits, an exit with inclined roadway into the wellbore, over and above the pump House floor 7m. A, 1 b, 2 c, 3 d, 4 6 mining area water Chamber, the effective capacity should be able to hold (b) normal inflow in
5、mining area. A, 2H b, 4H c, 6h d, 8h 7, short sump capacity should be maintained at a total capacity of (b) above. A, 40% b, 50% c, 60% d, 70% 8, in the year before the rainy season, should complete overhaul (a), and all pumps and backup pumps were 1 joint tests and found the problem and deal with i
6、t. A, 1 b, 2 c, 3 d, 4-9, complex and very complex hydrogeological conditions of mine on the ground could not be identified when mine hydrogeological condition and water filling factors should be persisted, (d) the principle of strengthening the work of survey water. A, digging after the first b, c
7、mining, after the first had the suspects will find d, excavations will be 10, penetrating exploration of goaf water, karstic water and drilling water, water drilling group layout, and in the roadway in front of the horizontal plane and vertical plane fan-shaped. Drill hole locations to meet horizont
8、al distance (d) as the standard, thick coal seam in the bore hole offset must not exceed 1.5M. A, 1M b, 1.5M c, 2m d, 3M 11, seam, prohibition in principle survey water pressure above (c) MPa water filling fault water, aquifer water and karstic water. If needed, you can waterproof wall and gate wall
9、 within survey water. A, b 0.5, 0.8 c, 1 d, 1.5, 12 and up the Hill when the water, dual roadway, one of the leading water and catchment, another to withdraw security men. Double room every (b) 1 m excavation contact Lane, and retaining walls. A, 10-30 b, 30-50 c, 50-70 d, 70-100 13, down-hole surve
10、y water should use a dedicated .毕业论文(设计)论文题目:变压器微机继电保护仿真分析学生姓名:方兴学 号:1008060209所在院系:电气信息工程学院 专业名称:电气工程及其自动化届 次:2014届指导教师:徐小军目 录前言21.绪论21.1 课题研究背景及意义21.2 国内外研究现状及发展方向31.2.1国内近年来发生的停电事故及影响31.3 课题的主要研究内容52.三相电力系统电力变压器的保护方式52.1 瓦斯保护原理分析52.2 差动保护62.3 电流速断保护62.4过电流保护62.5 零序过电流保护72.6 变压器过负荷保护83.线路继电保护的基本原理
11、83.1 整定基本要求83.2 保护整定原则104.线路继电保护仿真134.1 保护仿真软件概述134.2 仿真设计步骤134.3 仿真模型的建立144.4距离保护模块建立154.5距离保护S函数编程175.仿真结果185.1故障参数的设置185.2 仿真结果196.结论与展望20参考文献21Exam exam elements 1. find out the Central thesis of the article 2: identify types of arguments summarized the arguments of the main content 3. identific
12、ation of the methods used in this paragraph or sentence, and its benefits. 4. (this paragraph) demonstration (process) what is it? 5. taste the benefits or effects of some words in a sentence. 6. for an article to add a fact or reasonable argument 7. do you agree with the author? Please explain the
13、reasons. Argumentative is talking about as the main expression of style. Through facts and reason, use logic to show that the authors views and attitudes to an issue and analysis on some phenomenon of insights and ideas. Three elements of argumentation elements: argument 1, argument: argument: autho
14、rs opinions, views and ideas. (Right, distinct) Note: essays generally have only one argument, some around the central argument put forward several arguments, arguments are used to justify central argument. Find argument of method: a to see articles of title II to note argument in articles in the of
15、 location title reveals; b beginning proposed; c talk process in the sharp proposed; d end antibody; articles in the no proposed, needed readers himself antibody note distinguish topics and argument: topics is talk paper by to described of main content, and argument is author on by described of cont
16、ent by made of clear of judge of sentences. 2, looking for or refine the method arguments: (a), see topic (b), start (c), end (four), middle (five), his induction an honest man is always suffer? in the dark old days of corruption, honest people suffer is not surprising, even commonplace. However, wi
17、th the development and progress of society, honest man suffer losses no longer become a common and normal phenomenon. Dishonest people may be proud of a moment, but ultimately the expense of them. As Lu Xun said leasing will also drown his own. Illusion and lies was uncovered the day liar He Yan peo
18、ple? some flattery, speculative hack who soon would be appreciated by a boss, but he would always ride it? the saying goes: clever to be wise dishonest people ultimately have to pay the price for his dishonesty. Overall, or doing an honest man does not suffer. This argument is an honest man does not
19、 lose exam: argument is that how come? Introduction of arguments: (1), straight to the central argument put forward. For example: on the backbone of the proposed opening of we Chinese are proud of (2), ask questions, add a central argument. For example: of the thinking and doing for dreams and death
20、 of the arguments. (3) cases, according to the experience of a life point (4), draws from the story problems, arguments (5), the central argument put forward in some way. For instance, metaphor, comparing elements of the second: the arguments argument: the material to prove point. (Authentic) 1, arg
21、ument type facts .淮南师范学院2014届本科毕业论文变压器微机继电保护仿真分析学生:方兴(指导老师:徐小军)(淮南师范学院 电气信息工程学院)摘要: 电力变压器在整个电力系统中是一个极其重要的电气设备,它的作用是能量还有电压的转换。电力变压器能不能够可靠安全的运行同时也直接关系到这个电力系统是否能持续稳定的运行。因为电力变压器的重要性,电力变压器的保护的发展现在也正在逐渐的引起人们对它的关注,因为它的规模的扩大使得它在国民经济中地位的提高,所以对其我们也提出了严格的要求,特别是在可靠性和快速性这两方面。在这篇文章中我们也是围绕变压器保护的要求进行微机保护系统的研究还有展开仿真
22、工作。关键词:微机保护;电力变压器;变送器Computer simulation analysis of transformer protectionStudent: Fang Xing (Guidance Teacher: Xu Xiaojun)(College of Electrical and Information Engineering, Huainan Normal University)Abstract: power transformers throughout the power system is an extremely important electrical equi
23、pment, energy as well as its role is to voltage conversion. Power transformers can not be reliably safe operation but also directly related to whether this can be sustained and stable power system operation. Because of the importance of power transformers, power transformers to protect the developme
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 方兴 变压器微机继电保护仿真分析 变压器 微机 保护 仿真 分析
链接地址:https://www.31doc.com/p-2037660.html