35kv煤矿供电系统井上部分设计11.doc

必威体育精装版精品文档，知识共享！ 摘 要 ??林西煤矿系70万吨中小煤矿，已有百多年的历史，许多设备都是原来引进外国的。随着企业的发展，目前的供电系统已经不能保证安全、可靠的供电。本次设计是根据现有的供电系统的特点，对某些设备以及负荷分布进行改进，以满足供电的可靠性和安全性。本次供电系统的设计内容包括：负荷计算、地面变电所设计、短路电流计算、地面高低压设备选择、保护装置、变电所防雷及接地等。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6kV，由单母分段的接线方式向矿区供电。根据煤矿供电系统特点，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。 本次设计林西煤矿35kV供电系统只有井上供电系统部分。为保证供电的安全性和可靠性，又考虑五龙煤矿的服务期限，从经济和技术两个方面对本矿进行整体设计，以达到满足对五龙煤矿设计的合理性。 关键词：林西煤矿； 35kV； 供电； 负荷计算； 设备选择； 短路电流计算 Abstract The design is based on the completion of the internship in the coal mine. WuLong Mine through field visits, in conjunction with the existing level of production plant and the prospects for future development in the power supply system on the basis of the relevant provisions of the coal production industry further standardize and improve. WuLong Coal Mine is 50 million tons and coal mines, over a hundred years of history, many of which are original to introduce foreign. With the development of enterprises, the current power supply system can not guarantee the safe and reliable power supply. This design is based on the characteristics of the existing power supply system, for some equipment and load distribution is improved to meet the power supply reliability and security. power system design include ：load calculations, ground substations design, short circuit current calculations, ground high-low voltage equipment selection, protection devices, Substation lightning protection and grounding. From the design of the power supply system in different parts of the two roads 35kV power line, the main 6kV transformers into the single-parent separately to the Mining wiring electricity. According to the characteristics of coal supply system, the design of the main lines are the largest operation of the system means the set of lines and equipment and to choose. WuLongCoal Mine 35kV power supply system design is only part of the power supply system Inoue. Considering the fifteen years’ service of WuLong Coal Mine, in order to ensure the security of elec