王娟娟论文 - 副本王娟娟论文 - 副本.doc

中国矿业大学银川学院 201 届本科毕业设计（论文） 题 目 所 在 系 专业班级 姓名 指导教师 教务处制  摘 要 本设计是在煤矿实习的基础上完成的。通过对四股泉煤矿的实地考察，结合该矿现有生产水平和未来发展前景，在原有供电系统的基础上根据煤炭生产行业的有关规定进一步规范和完善。 四股泉煤矿系120万吨大煤矿，供电系统设计内容包括：地面变电所设计、井下供电设计、短路电流计算、地面及井下高低压设备选择、保护装置、地面及井下接地等。本设计主供电系统由来自不同地方的两路35kV线路供电，经主变压器变为10kV，由单母分段的接线方式分别向地面和井下供电。根据煤矿供电系统特点，本设计系统主线路均以最大运行方式进行整定，并以此对线路及其设备进行选择。 四股泉煤矿供电系统包括井上供电系统和井下供电系统两个部分。为保证供电的安全、可靠，又考虑四股泉煤矿50年的服务期限，从经济和技术两个方面对本矿进行整体设计，以达到满足对四股泉煤矿设计的合理性。 关键词：四股泉煤矿； 35KV ；供电；设备选择 Abstract This design is in the coal mine practice foundation to complete. The four spring of coal field, combined with the mine production level and the development prospect in the future, in the original power supply system on the basis of the coal production industry regulations to further standardize and improve the. Four spring coal mine1200000 tons of large coal mines, power supply system design include: ground substation design, underground power supply design, short-circuit current calculation, ground and underground high voltage equipment selection, protection device, ground and underground grounded. The design of main power supply system is composed from different parts of the two 35kV line power supply, the main transformer for10kV, from single parent segment connections respectively to the ground and underground power supply. According to the characteristics of power supply system in coal mine, the design of system main circuit with maximum operation mode setting, and the line and its equipment selection. Four spring35kV power supply system in coal mine underground power supply system and comprises two parts of underground power supply system. In order to ensure the power supply security, reliability, and consider the four spring of coal mine50 years of term of service, from two aspects of economy and technology of the mine for the overall design, to meet the four spring of coal mine design. Key words: four spring;35KV; coal m