浑江发电司电气部分初步设计.docVIP

PAGE PAGE 30 毕业设计（论文） 浑江发电公司电气部分初步设计 Electrical part Design in Hunjiang Power Company 摘 要 本文主要阐述了浑江发电公司电气部分设计的全过程 首先，根据设计任务书提供的该厂原始资料和设计规程初步拟定方案，通过可靠性、灵活性、经济性的比较确定最佳电气主接线方案；接着，根据发电机型号和厂用电率选择主变压器；然后，计算短路电流并选择电气设备（包括互感器、断路器、隔离开关等）；最后，绘制主接线图，平面图，断面图。 关键词 电气主接线 短路电流 断路器 设备选择 配电装置 Abstrct The article main illustrates the Hunjiang Power Company electrical part design in power plant. First of all,according to the task book, the original data and the design regulations, the best main electrical wire connection is made by comparing with the reliability, flexibility and economy. Then, according to the generator capacity and the load rate used by the power plant, the type and capacity of the main transformers are determined. the short-circuit current is calculated to select the main electric equipments(including mutual inductance machine, breakers and switches etc.). Finaly, the main wiring diagram, floor plans, sections are drawed. Keywords: main electrical wire connection short-circuit electric current breakers equipment selection distribution equipments 目 录 TOC \o 1-2 \h \z \u HYPERLINK \l _Toc471332108 引 言 PAGEREF _Toc471332108 \h 1 HYPERLINK \l _Toc471332109 1 电气主接线的确定和厂用电的设计 PAGEREF _Toc471332109 \h 2 HYPERLINK \l _Toc471332110 1.1 电气主接线的设计原则 PAGEREF _Toc471332110 \h 2 HYPERLINK \l _Toc471332111 1.2 厂用电的设计 PAGEREF _Toc471332111 \h 5 HYPERLINK \l _Toc471332112 2 短路电流计算 PAGEREF _Toc471332112 \h 6 HYPERLINK \l _Toc471332113 2.1 短路电流计算的目的和方法 PAGEREF _Toc471332113 \h 6 HYPERLINK \l _Toc471332114 2.2 原始数据 PAGEREF _Toc471332114 \h 7 HYPERLINK \l _Toc471332115 2.3 等值电抗的计算 PAGEREF _Toc471332115 \h 7 HYPERLINK \l _Toc471332116 2.4 短路电流的计算过程 PAGEREF _Toc471332116 \h 8 HYPERLINK \l _Toc471332117 3 电气设备配置 PAGEREF _Toc471332117 \h 18 HYPERLINK \l _Toc471332118 3.1 隔离开关的配置 PAGEREF _Toc471332118 \h 18 HYPERLINK \l _Toc471332119 3.2 电压互感器的配置 PAGEREF _Toc471332119 \h 18 HYPERLINK \l _Toc471332120 3.3 电流互感器的配置 PAGEREF