绝缘子和套管选择校验程序的设计本科论文 .doc

绝缘子和套管选择校验程序的设计 本文介绍了一个采用C++ Builder 6.0开发的变电所计算机辅助设计系统6.0软件实现计算机对绝缘子和套管的选择。 关键词：变电所计算机辅助设计系统  The design of the insulator and bushing select check program Abstract This paper introduces a substation using C++ Builder 6 to develop the system of computer aided design, completed the substation module program design. This system has abundant element, can generate engineering pictures quickly, with the support of the database connection, support switching engineering inter and rapid updates, support embedded scripting, is highly visual, highly open, and other modules consisting of substation computer aided design system. This paper is designed according to the general design of substation steps, including a main wiring, short-circuit current calculation, automatic generation of common electrical equipment selection and calibration of several large. The first design using Access software to establish the substation each equipment type, impedance voltage, and technical data of the database, as raw materials; secondly, short-circuit current calculation, familiar with the selection and calibration of each equipment, at the same time, the basic formula of the finishing; finally computer aided design of variable electrical using C++ Builder 6 software. Keywords: substation; computer aided design system；Insulator and bushing selection目录 摘 要 I Abstract II 第一章 绪论 1 1.1 选题背景 1 1.2课题研究内容 1 1.3课题研究意义 2 1.4本章小结 2 第二章 变电站计算机辅助设计系统的设计 3 2.1变电站计算机辅助设计系统的构成 3 2.2主要功能模块介绍 3 2.2.1网络参数输入模块 3 2.2.2 变压器的选择模块 4 2.2.3 主接线设计模块 5 2.2.4 短路电流计算模块 6 2.2.5 电气设备选择模块 6 2.3本章小结 7 第三章 短路电流计算 8 3.1 概述 8 3.2 短路电流计算条件 8 3.3短路电流计算机算法介绍 9 3.3.1传统的短路计算概述 9 3.3.2 短路电流运算曲线 10 3.3.3 短路电流运算曲线数字化 11 3.3.4拉格朗日插值法 12 3.4本章小结 14 第四章 绝缘子及套管的选择和校验 15 4.1电气设备选择的一般条件 15 4.2绝缘子和套管选择 16 4.2.1绝缘子简介? 16 4.2.2选择绝缘子和套管的种类和型式 18 4.2.3按电压条件选择支柱绝缘子和穿墙套管 18 4.2.4按电流条件选择穿墙套管 18 4.3绝缘子和套管的校验 18 4.3.1按短路条件校验支柱绝缘子和穿墙套管的动稳定 18 4.3.2按短路条件校验穿墙套管的热稳定 19 4.4本章小结 19 第五章 程序设计 20 5.1开发工具介绍 20 5.1.1 Broland C++Builder的简介 20 5.1.2适用