摘要本设计书阐述了电网设计的基本的原理以及基本的步骤，变电所设计的基本原理以及基本步骤，介绍电网设计及变电所设计的方法。通过对技术经济的综合比较，从而确定电网接线方式及电线截面；进行电网潮流计算从而实现了110KV 区域电网设计说明书和计算书。根据负荷资料，待设变电所的地理位置和供电情况作出了变压器的选择，再根据短路计算，最大负荷电流计算作出隔离开关及断路器选择，10KV 硬母线选择，实现了降压变电所设计的说明书计算书自动生成。电网设计中重点研究了方案选择、精确潮流和调压计算，降压变电所设计设计着重讨论三相短路电流的计算、断路器和隔离开关选择、母线选择，设计了变电所主接线图纸和区域网接线图。关键词 区域电网的设计，变电所的设计， 潮流计算 ,短路计算，设备的选择Abstract This paper describes the basic principles of network design and the basic steps, basic principles of substation design and basic steps, described the design and the power substation design a general way. Through the technical and economic comparison of results, determine the network connection and wire cross-section; to 110KV power flow calculation to achieve regional power grid design specifications and calculations automatically. According to load data, to be set up power substation's location and circumstances, to make the choice of transformer, and then under short-circuit calculation, calculation of the maximum load current switches and circuit breakers to isolate the choice, 10KV bus hard choices to achieve blood pressure changes electrical specification designed to automatically calculate the book. This paper focuses on the power grid design flow calculation, step-down substation design design short-circuit calculation circuit breaker option is an important part of the design. Key words network design, substation design, flow calculation, short-circuit calculation Equipment selection第一篇 设计说明书第一部分 区域电网说明书1．电网有功功率的初步平...
