300MW汽轮发电机组厂用电设计论文.doc
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1、毕业设计2300MW汽轮发电机组厂用电设计摘 要 本论文是对发电厂厂用电进行设计,主要运用发电厂电气部分,电力系统分析,电力系统继电保护等专业知识完成。具体设计内容包括厂用电接线设计,负荷分析计算,变压器选择,电动机自启动校验,继电保护设计,防雷设计等。在严格遵循发电厂电气部分的设计原则下,并结合实际情况确定了厂用电母线电压等级为6KV,利用换算系数法进行负荷分析计算,变压器选择低压分裂三绕组变压器,确定了合适的短路点进行短路电流计算,根据防雷保护要求确定避雷器,最后绘制了厂用电接线图。关键词:发电厂,变压器,避雷器IDesign of Power Plant of 2300MW Turbo
2、Generator FactoryAbstractThe paper is designed towards the electricity power plant, using electrical power plants, power system analysis, power system protection and other expertise to complete. Specific design elements including electricity cable plant design, load analysis, the choice of transform
3、ers, motors start checking, relay protection design, lighting protection design and so on. The design follows strictly to the principles of the electrical power plants, combined with the actual situation, identifying the bus voltage electricity plant as 6 KV, using conversion factor method to calcul
4、ate the load, choosing the low-voltage split three winding transformer, fixing the appropriate short-circuit point to calculate the short-circuit current,selecting the arrester according to the requirement of lighting protection, finally drawing the electric wiring diagram. Keyword: power plant, tra
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