XXXX35kVXX变增容改造工程可行性研究报告XX市XX电力工程勘测设计有限公司二○一二年九月目录TOC\o"1-2"\h\z\uHYPERLINK\l"_Toc338079379"1工程概述PAGEREF_Toc338079379\h1HYPERLINK\l"_Toc338079380"1.1设计依据PAGEREF_Toc338079380\h1HYPERLINK\l"_Toc338079381"1.2设计范围PAGEREF_Toc338079381\h1HYPERLINK\l"_Toc338079382"1.3工程概况PAGEREF_Toc338079382\h1HYPERLINK\l"_Toc338079383"1.4工程本期改造概况PAGEREF_Toc338079383\h1HYPERLINK\l"_Toc338079384"2电力系统PAGEREF_Toc338079384\h2HYPERLINK\l"_Toc338079385"2.1电网现状PAGEREF_Toc338079385\h2HYPERLINK\l"_Toc338079386"2.2电力需求预测PAGEREF_Toc338079386\h15HYPERLINK\l"_Toc338079387"2.3变电站建设可行性PAGEREF_Toc338079387\h18HYPERLINK\l"_Toc338079388"2.4变电站改造规模PAGEREF_Toc338079388\h19HYPERLINK\l"_Toc338079389"2.5相关电气计算PAGEREF_Toc338079389\h19HYPERLINK\l"_Toc338079390"3电气一次PAGEREF_Toc338079390\h19HYPERLINK\l"_Toc338079391"3.1XX变电站现状PAGEREF_Toc338079391\h19HYPERLINK\l"_Toc338079392"3.2变电站本期改造项目PAGEREF_Toc338079392\h21HYPERLINK\l"_Toc338079393"3.335kV接线形式PAGEREF_Toc338079393\h23HYPERLINK\l"_Toc338079394"3.410kV接线PAGEREF_Toc338079394\h23HYPERLINK\l"_Toc338079395"3.5各级电压中性点接地方式PAGEREF_Toc338079395\h23HYPERLINK\l"_Toc338079396"3.6短路电流方式及主要电气设备、导体选择PAGEREF_Toc338079396\h23HYPERLINK\l"_Toc338079397"3.7绝缘配合及过电压保护PAGEREF_Toc338079397\h24HYPERLINK\l"_Toc338079398"3.8电气设备布置及配电装置PAGEREF_Toc338079398\h25HYPERLINK\l"_Toc338079399"3.9站用电及动力照明PAGEREF_Toc338079399\h25HYPERLINK\l"_Toc338079400"3.10电缆敷设及防火PAGEREF_Toc338079400\h26HYPERLINK\l"_Toc338079401"4电气二次部分PAGEREF_Toc338079401\h26HYPERLINK\l"_Toc338079402"4.1二次改造概况PAGEREF_Toc338079402\h26HYPERLINK\l"_Toc338079403"4.2调度自动化PAGEREF_Toc338079403\h27HYPERLINK\l"_Toc338079404"4.3监控系统PAGEREF_Toc338079404\h29HYPERLINK\l"_Toc338079405"4.4元件保护PAGEREF_Toc338079405\h32HYPERLINK\l"_Toc338079406"4.5一体化电源系统PAGEREF_Toc338079406\