110kV变电站毕业设计(DOC 87页)
87页1、110kV变电站毕业设计摘 要根据设计任务书的要求,本次设计为110kV 变电所电气一次部分初步设计,并绘制电气主接线图及其他图纸。该变电站设有两台主变压器,站内主接线分为110kV、35kV、和10kV 三个电压等级,各个电压等级分别采用桥形接线、单母线分段带旁母接线和单母线分段接线,设计包括电气的一次部分和二次部分的设计和计算。在一次部分中,要对电力系统和变电站进行总体分析,然后确定变电站电气主接线的形式,并在此过程中进行系统的无功补偿、短路电流计算以及电气设备的选择。在具体计算后,还要为建造变电站进行配电装置及电气总平面的布置设计,使建站合理化。在二次部分中,要综合考虑保护的方式、系统运行的方式和短路点的选择,在此基础上进行整定计算。在设计过程中要绘制相关图纸,包括主接线等较重要图纸并掌握其内容。本次设计中进行了电气主接线的设计、短路电流计算、主要电气设备选择及校验(包括断路器、隔离开关、电流互感器、电压互感器、母线等)、各电压等级配电装置设计、直流系统设计以及防雷保护的配置。关键字 变电所 短路电流计算 变压器 电气设备AbstractRequest according to
2、design specification, capital the connection diagram designing that the first step designs, and draw the electricity host for 110 kV substation electricity once parts time and their his drawing sheet. That transformer substation is set up having two host transformers, the station inner host works a telephone switchboard dividing 110 kV , 35 kV ,10 kV three voltage grades , one by one, the voltage grade adopt the bridge shape to work a telephone switchboard respectively , Shan bus bar paragraph d
3、ivision takes other mother connection and Shan bus bar paragraph division to work a telephone switchboard , designs the design including electric part and repeated part and secretly schemes against. In a part, want the analysis carrying out population on electric system and the transformer substation, choice ascertaining transformer substation electricity host connection form then, and carrying out systematic idle work compensation , secretly scheme against and electric equipment of short-circui
4、t current here in process. Arrangement wanting to be to build a transformer substation to carry out the power distribution device and the general flat surface of electricity too in the queen who secretly schemes against concretely, designs , makes rationalization build a station. In repeated part, want the choice considering the way and short circuit point that way , system protecting run synthetically, the adjusting being in progress here on the basis secretly schemes against. Need to draw the
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