学位论文--煤矿35kv地面变电所设计.docVIP

摘 要 电力是煤矿系统的主要能源，供电系统是由电气设备及配电线路按一定的接线方式所组成。 本设计为煤矿35kV地面变电所设计，目的是建立35kV地面变电所，为煤矿提供可靠的电源。 整个设计包括35kV变电所设计的所有内容，同时考虑到煤矿供电系统的特点，对变电所的负荷进行了分组。通过对短路电流的计算，确定了系统主接线及运行方式，同时对于变电站内的主设备进行合理的选型。本设计选择选择两台主变压器，其他设备如断路器，隔离开关，电流互感器，电压互感器，无功补偿装置和继电保护装置等等也按照具体要求进行选型、设计和配置，力求做到运行可靠，操作简单、方便，经济合理，具有扩建的可能性和改变运行方式时的灵活性。使其更加贴合实际，更具现实意义。 关键词： 35kV 变电所 设计 Abstract Electric power is the main energy in coal mine system, power supply system is composed of electrical equipment and the distribution line according to a certain mode of connection. The design for the 35kV coal mine surface substation design, aims to establish the 35kV ground substation, provide reliable power supply for coal mine. The design includes the design of 35kV substation all content, taking into account the characteristics of mine power supply system, the load on the substation grouping. Through the calculation of short-circuit currents, determine the system main connection and operation mode, at the same time for substation primary equipment reasonable selection. This design choice of two main transformers, other equipment such as a circuit breaker, isolating switch, current transformer, voltage transformer, reactive power compensation device and relay protection device and so on in accordance with the specific requirements for the selection, design and configuration, and strive to achieve reliable running, simple operation, convenient, economical and reasonable, with expansion and the possibility of change operation mode when the flexibility. To make it more practical, more practical. Key words: 35kV; substation; design 目录 摘 要 - 1 - Abstract - 2 - 1 前言 - 1 - 2 原始资料 - 2 - 2.1电力系统接线图 - 2 - 2.2系统情况 - 2 - 3 负荷统计和无功补偿的计算 - 4 - 3.1 负荷计算的目的 - 4 - 3.2 负荷计算方法 - 4 - 3.3 负荷计算过程 - 5 - 3.4 无功补偿 - 6 - 3.4.1 无功补偿概述 - 6 - 3.4.2 无功补偿的计算 - 6 - 3.4.3 无功补偿装置 7 4 主变压器与所用变压器的选择 8 4.1 规程中的有关变电所主变压器选择的规定 8 4.2 主变台数的确定 8 4.3 主变容量的确定 8 4.4 主变形式的选择 8 4.5 所变的选择 8 5 电气主接线设计 10 5.1 电气主接线概述 10 5.2 主接线的设计原则 10 5.3 主接线设计的基本要求 10 5.