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1、教师批阅课程设计用纸目录一、任务书·······················································21、基本资料与数据···············································22、设计内容及要求···············································23、设计成果·····················································2二、三绕组变压器B’保护配置及整定计算·······················
2、····51、保护配置·····················································52、短路电流的计算···············································53、复合电压启动的过流保护整定计算·······························6(a)整定计算过程及校验··················第27页共25页教师批阅课程设计用纸······················6(b)装设原则········································
3、··········9三、附录1、附表·························································102、附图(a)原始资料图···········································11(b)拓扑图···············································14(c)保护原理图···········································16四、设计总结········································
4、·············23参考文献·························································24第27页共25页教师批阅课程设计用纸一任务书1、基本资料和数据：本电站为位于本省西南部山区某江中下游的一个水电站，距县城35KM，水电站保证出力为9200KW，年利用小时数为5300小时／年，多年平均发电量为1.866亿度／年，装有４台相同的悬式水轮发电机组，单机容量为8800KW． 水轮机为混流式，型号为HL220－LJ－230，机组额定容量为10000KW，韶关发电设备厂生产。 水轮发电机：型号为SF425／7
5、9－32，悬式，额定容为Pe＝8800kw,额定电压为Ue=6.3kv,额定电流为Ie=1008A,功率因数cosj=0.8,额定转速Ne=187.5转/分，频率50HZ，飞逸转速为430转/分,转动惯量450吨米２,转子重63.6吨,总重量138.6吨,杭州发电设备厂生产。调速器，型号WT-100,双微机调速器。永磁机，型号TY65/133-16,功率1.5KVA,110V,25HZ,哈尔滨电机厂生产。发电机励磁装置，自并激可控硅励磁装置，励磁变压器SL1-250/10,接法:Y/Y-12。负荷情况：D1为本县城,Pe＝5000KW,COSΦ=0.8,距本站35KM,可
6、用单回架空线供电。D2为本县一个有色金属开发基地，Pe=3000kw,cosΦ=0.8,距本站55KM,可用单回架空线经D1供电。D3为本县一个新兴城镇,Pe=3000KW,cosΦ=0.8,距本站25KM,可用单回架空线供电。D3所采用的降压变的型号为SJL1-4000/35/10.5,Y/D-11,Ud%=7D4为本县新兴城镇的一个现代化农业开发基地,Pe=2000KW,COSΦ=0.7,距本站45KM（距新兴城镇20KM）,可用单回架空线经D3供电。D4所采用的降压变的型号为SJL1-3150/35/10.5,Y/D-11,Ud%=7D5为本县一个新兴工业城镇,Pe
7、=3000KW,COSΦ=0.8,距本站30KM,可用单回架空线供电。D6为近区负荷,距本站6KM,Pe=1000KW,COSΦ=0.7,可用10KV单回线配电。本站生活变压器型号：SL7-630/10.5,容量：630KVA，额定电压：10.5/0.4/0.23(KV),阻抗电压Ud％＝4.5,Y/Y0-12。本站联入系统设计(1)本站可通过一回架空线路与本地区电力系统的距本站50KM的110KV第27页共25页教师批阅课程设计用纸枢纽变电所B1相连,以便丰水季节将本站17000KW的多余电力送入系统,在枯水季节(元月份)由
