1、 2012届本科毕业设计(论文)届本科毕业设计(论文) 题 目 *煤矿综采工作面供电系统设计 所 在 系 机电动力与信息工程系 专业班级 08 级工业工程(1)班 姓 名 指导教师 教务处制 I 摘摘 要要 本设计为*农场煤矿采区供电设计。从实际出发进行系统分析,除满足一 般设计规程及规范要求外,还满足煤矿安全规程的具体要求和标准。本设计 变压器选用矿用隔爆型干式变压器和矿用隔爆型移动变电站; 高压开关与低压馈 电开关都选用具有技术先进的智能化综合保护装置的高压防爆真空开关和低压 矿用隔爆型真空馈电开关,各种设备的开关选用矿用隔爆型真空起动器。高压铠 装电缆选用交联聚乙烯绝缘聚乙烯护套电力电缆
2、。通过短路电流、开关继电保护 整定的计算和保护接地的确定,使其设计可靠性高、功能完善、组合灵活,以及 功耗低,保证采区供电安全、经济、高效平稳运行。 关键词:供电设计;变压器;开关;电缆 II Abstract Designed for six transport Lake Farm coal mining area power supply design. Proceeding from the actual systems analysis, General specification for design and specification except those that meet
3、the requirements, also meet the specific requirements of the coal mine safety regulations and standards. Design selection of mine-used flameproof dry transformer of transformer and mine-used flameproof movable substation; selection of high-voltage switch with low voltage feed switch has the advanced
4、 technology of intelligent comprehensive protective device of high voltage explosion-proof vacuum switch and low-voltage mining flameproof vacuum feed switch, various device switch selection of mine-used flameproof vacuum starter. Selection of HV armored cable xlpe insulated PE sheathed power cable.
5、 By short circuit current, switch of relay protection setting calculation and determination of the protective earth so that its combination of perfect design, high reliability, functionality and flexible, and low power consumption, ensure the safety of mining area power supply, economical, efficient
6、, smooth running. keyword: power supply design; use of a transformer; switch; cable 目目 录录 1 工作面概况与设备选型配置 1 2 供电系统的选择确定 . 1 3 负荷统计及移动变电站选择 1 3.1 设备选型配置、电压等级、用电设备负荷统计表. 1 3.2 变压器的选择. 2 4 电气设备的选型. 3 5 高压电缆选择与校验 . 3 5.1 两台 1600 KVA 移动变电站高压电缆的选择 . 3 5.2 800 KVA 移动变电站高压电缆的选择 . 4 6 移动变电站负荷侧电缆选择与计算 . 5 6.1 3300V 移动变电站负荷侧电缆选择与计算 5 6.2 1140V 电缆选择与计算 .13 7 短路电流计算 .15 7.1 3300V 系统短路电流计算 .15 7.2 1140V 系统短路电流计算 .17 8 热稳定和开关分断能力校验 18 8.1 低压电缆热稳定校验 18