毕业设计煤矿35KV供电系统设计.doc
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毕业设计(论文)说明书
设计(论文)题目:煤矿35KV供电系统设计
学 校 :
函授教学站点: 继续教育学院
年 级 专 业 : 2012
姓 名:
毕业设计(论文)任务书
论文题目:
要 求:(时间自 2014 年 3月26日至2014年5月20 日)
指导教师 :
下达 时间: 2014年 3 月 26 日
摘 要
林南仓煤矿系100万吨中型煤矿,地理位置优越,历史悠久。矿区部分设备都是原来引进外国的。近年来,由于企业的发展迅速,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以及地质条件的特点,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、井下变电所设计、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。
本次设计煤矿35kV供电系统,包括井上供电系统部分和井下中央变电所部分。为保证供电的安全性和可靠性,又考虑本煤矿20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,以达到满足对本煤矿设计的合理性。
关键字: 35kV; 供电系统; 负荷计算;短路电流计算;设备选择
Abstract
Lin Nancang coal mine1000000tons of medium-sized coal mines, the geographical position is superior, has a long history. Mining equipment is the original part of the introduction of foreign. In recent years, because of the rapid development, the current supply system has been unable to ensure safe, reliable power supply. The design is based on the existing power supply system and the characteristics of geological conditions, some equipment and load distribution are improved, in order to satisfy the power supply reliability and security. The power supply system design content includes: load calculation, ground substation design, short-circuit current calculation, underground substation design, ground high voltage equipment selection, protection, substation lightning protection and grounding. The design of main power supply system consists of anywhere from two 35kV line power supply, the transformer into 6kV, consisting of a single bus section connection to the mining area power supply.
The design of35kV power supply system in coal mine power supply system, including Inoue and underground central substation part. In order to ensure the safety and reliability of power supply, and consideration of the coal mine for 20 years of service, from two aspects of e
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