110kv变电站电气控制方案设计

requirements for the 35 110kV high voltage distribution equipment are followedfor reference.And the design of the overall electrical substation control scheme isrelated to China's professional and technical policies and economic policies.All theselected equipment are new products recommended by the state,advanced technology,safe operation and reasonable economic utilization are the important core to ensurereasonable design.Key words:Scheme design,Main wiring,Substation,Double bus.目录1绪论2变电站主接线和主变压器12.1主要接线的设计原则和要求12.1.1设计主接线原则12.1.2主要接线设计的基本要求22.2主要接线线路的设计2.2.1设计步骤32.2.2项目初步设计32.2.3最佳界定方案42.3主变压器的选择52.3.1主变压器数量的选择52.3.2主变压器选型2.3.3主变压器容量的选择62.3.4主变压器型号的选择62.4站变压器的选择92.4.1站变压器选择的基本原则924.2如何选用站用变压器3短路电流计算103.12.1短路计算的目的，规定和步骤103.1.1短路电流计算的目的103.1.2短路计算的一般要求1032.1.3计算步骤103.2变压器参数的计算和短路点的确定112.2.1变压器参数的计算112.2.2短路点的确定112.3每个短路点的短路计算123.3计算各短路点的情况122.3.1短路点d至1(110KV母线)的短路计算122.3.235KV短路点d至2总线的短路计算132.3.310v母线的短路点d至3短路计算132.3.4短路点d至4的短路计算143.4绘制短路电流计算结果表144电气设备的选择和验证164.1一般规定电气设备的选择16