1、摘要 由于井下环境的特殊性，煤矿井下供电尤其重要，它涉及到煤矿企业的生产、 安全及其效率，这样就对供电系统提出更高的要求。本设计说明书是根据在神火 集团薛湖煤矿的毕业实习过程中搜集的矿井的基本资料,进行的井下供电系统设 计。本设计主要以中央变电所和 23 采区变电所为对象，并着重对 23 采区变电所 进行设计。该设计主要包括井下供电系统中各种用电设备的选型及其计算过程， 如变压器、电缆、高低压开关的选择等，并对电缆进行校验，比较详细地叙述了 矿用电缆及电气设备的选定原则以及井下负荷统计所用的方法和短路电流的相关 计算。本设计方案按照煤矿安全规程 、 煤矿井下供电设计规范 、 煤矿电工 手册以及
2、国家其它煤炭工业相关方针政策，尽可能采用切实可靠的高产高效的 先进技术和工艺，力争使自己的设计达到较高水平。 关键词关键词：负荷计算；变压器选择；短路电流；电气设备选择 Abstract Because of the particularity of the conditions in the mine, coal mine underground power supply is especially important, it involves coal mine enterprise production, safety and efficiency, so of the power su
3、pply system is put forward higher request. This design specification is according to the coal mine in carried itwith him XueHu group in the process of graduation practice collecting of basic materials of mine, underground power supply system design. This design mainly by the central substation and 2
4、3 mining for substation object, and focuses on the design of the substation 23 mining. The design includes underground power supply system of all kinds of electrical equipment selection and calculation process, such as transformer, cable, high/low pressure switch choice, etc, and carries on the part
5、 of the setting and verify, compare in detail the mining cable and electrical equipment in the selected principle and the use of the underground load statistics method and short circuit current related calculation. This design according to the coal mine safety procedures “, “coal mine underground po
6、wer supply design norms,“ and “coal mine electrician manual“ and country other coal industry related policies, use as far as possible practical reliable high yield and high efficiency of advanced technology and process, and strive to make their own design to a higher level. Keywords: Load calculation；Transformer choose ；Short-circuit current ；Electrical equipment selection 目目 录录 摘要 Abstract 1 薛湖煤矿的原始资料 1 1.1 交通位置及气象地震. 1 1.2 井田地质特征. 1 1.2.1 井田地质构造. 1 1.2.2 水文地质 2 1.3 煤层特征. 2 1.3.1 煤层. 2 1
