防火防盗门安装规范.doc

煤矿地面35KV变电所的设计
摘要
本设计初步设计了煤矿地面35KV变电所的设计其设计过程主要包括负荷计算主接线设计短路计算电气设备选择防雷与接地等通过对煤矿35KV变电所的负荷统计用需用系数法进行负荷计算根据负荷计算的结果确定主变压器的台数容量及型号用标幺值法对供电系统进行短路电流计算为电气设备的选择及校验提供了数据根据煤矿供电系统的特点制定了矿井变电所的主接线方式运行方式其中35KV侧为全桥接线6KV主接线为单母分段接线两台主变压器采用分列运行方式并根据电流整定值以及相关数据选择了断路器隔离开关互感器等电气设备并进行校验
关键词负荷计算短路计算变电所运行方式
Abstract
The coal mine ground 35KV transformer substation was designed Design process is mainly including load calculate the design of main electrical connection short out calculate electric equipment choose lightning protection and grounding etc According to load statistics and the result of load calculation determine the quantity capacity and mode of the main voltage transformer According to the characteristic of the coal electric system determine the main electrical connection and operation mode of the ground transformer substation The side of 35KV is Full –bridge Connection and the bus of 6KV is single bus section The two voltage transformers adopt the mode of split run And according to the check–up of whole definite value and relevant data of the electric current have chosen such electric equipment as the relay voltage transformer etc
KeywordsLoad calculation shortcircuit calculation substations operation mode 目录
1概述 1
11矿井简介 1
12十二矿供电系统简介 1
13原始负荷资料 1
2负荷计算 3
21负荷计算目的 3
22负荷计算方法 3
23负荷计算过程 5
com设备组负荷计算 5
com变压器的选择与损耗计算 10
comKV母线上补偿前的总负荷并初选主变压器 12
com数补偿与电容器柜的选择 12
3变电所主变