1水轮发电机计算单电机设计2009-09-2912:29:13阅读171评论0字号：大中小订阅SFW2500-8/1730电磁计算结果================================================================================序号名称变量结果单位备注================================================================================一、基本数据1.1额定数据1.01额定功率PN2500.000(kW)1.02额定功率因数COSφN.8001.03额定容量SN3125.000(kVA)1.04额定电压UN10500.000(V)1.05相电压Uφ6062.178(V)1.06额定电流IN171.830(A)1.07相电流Iφ171.830(A)1.08额定转速nN750.000(r/min)1.09飞逸转速nr.000(r/min)1.10额定频率fN50.000(Hz)1.11极数2p8.0001.12相数M3.0001.12飞轮力矩GD299.379(kN.m)1.2定子铁心和转子磁极铁心尺寸1.13定子铁心外径D1173.000(cm)1.14定子铁心内径Di132.000(cm)1.15定子槽宽度bs1.680(cm)1.16定子槽高度hs7.500(cm)1.17定子槽楔高度hk.500(cm)1.18定子线圈绝缘单边厚度δi.330(cm)1.19定子铁心径向通风槽宽度及通风槽数bvnv15.000(cm)1.20无通风槽的定子铁心长度l63.000(cm)1.21各段铁心长度不相等时相邻通风槽的平均距离tv4.875(cm)21.3定子绕组数据1.22定子槽数Z108.0001.23每极每相槽数q4.500=4.+1./2.1.24每相并联支路数a1.0001.25每槽有效导体数Ns8.0001.26每支路电流Ia171.830(A)1.27定子槽电流Is1374.644(A)1.28电负荷A358.006(A/cm)1.29绕组节距Y11.0001.30短矩系数β.8151.31每相串联匝数Wφ144.0001.32定子线圈的股线尺寸4.(2.500x3.700)/(2.900x4.100)1.33每支路有效导体截面积Ac35.520(mm)1.34定子绕组的电流密度J4.838(A/mm)1.35热负荷AJ1731.879(A/cm.mm)1.36定子铁心总长度lt78.000(cm)1.37定子绕组端部每半匝平均长度lE87.504(cm)1.38定子绕组每匝平均长度lc331.008(cm)1.39定子绕组每相电阻R(15).235(Ω)R(75).292(Ω)1.4励磁绕组及阻尼绕组数据1.40阻尼条节距t23.070(cm)1.41阻尼绕组槽开口宽度bsh3.000(mm)1.42阻尼绕组槽开口高度hsh3.000(mm)1.43励磁绕组铜线规格af2.000(mm)bf28.000(mm)Af56.000(mm)1.44励磁绕组每极匝数Wf82.5001.45励磁绕组每匝平均长度(单排线圈)lcf230.363(cm)1.46励磁绕组电阻Rf(15).476(Ω)Rf(75).591(Ω)Rf(120).676(Ω)Rf(130).695(Ω)1.47每极阻尼条数nB7.0001.48阻尼条直径dB14.000(mm)31.49圆阻尼条截面积AB1.539(cm)1.50阻尼条长度lB93.600(cm)1.51阻尼环厚度和宽度aR50.000(mm)bR10.000(mm)1.52阻尼环截面积AR500.000(mm)1.53阻尼环平均直径DR125.500(mm)1.54直轴阻尼绕组电阻(标么值)RDd*.0211.55交轴阻尼绕组电阻(标么值)RDq*.017二、空载磁势计算2.1磁路计算2.01定子齿顶处齿距t13.840(cm)2.02极距τ51.836(cm)2.03气隙δ.750(cm)2.04比值δ/τ.0142.05比值δmax/δ1.5002.06极靴宽度bp36.000(cm)2.07极弧系数αp.6942.08定子1/3齿高处齿距t1/33.985(cm)2.09定子1/2齿高处齿距t1/24.058(cm)2.10定子齿顶处齿宽bt2.160(cm)2.11定子1/3齿高处齿宽bt1/32.305(cm)2.12定子1/2齿高处齿宽bt1/22.378(cm)2.13定子轭高hj13.000(cm)2.14定子轭磁路长Lj62.832(cm)2.15定子铁心叠压系数KFe.9402.16定子铁心有效长度Lef59.220(cm)2.17比值lt/τ1.5052.18定子铁心边缘段阶梯形高度a1.000(cm)2.19定子铁心边缘段阶梯形宽度c1.000(cm)2.20定子铁心计算长度L`t78.000(cm)2.21主极极靴长度lp78.000(cm)2.22主极极身长度lm78.000(cm)2.23主极极靴计算长度l`p79.500(cm)2.24轴向气隙计算长度l078.750(cm)2.25计算气隙δ`.875(cm)2.26极靴高度hp5.500(cm)2.27极身宽度bm23.500(cm)2.28极身高度hm21.000(cm)2.29磁极压板厚度δp4.500(cm)2.30磁极铁心计算长度lm`82.500(cm)42.31磁极结构尺寸ap6.250(cm)dt3.795(cm)cp12.855(cm)τm15.181(cm)2.32定子齿重GFet861.177(kg)2.33定子轭重GFej2921.653(kg)2.34磁极压板截面积Ap74.025(cm)2.35磁极铁心截面积Am1926.060(cm)2.2空载特性计算2.36绕组基波短距系数Kp1.9582.37绕组基波分布系数Kd1.9552.38基波绕组系数Kdp1.9152.39基波磁通Φ1.207(Wb)2.40磁场波形系数kφ.9772.41极弧磁通系数kλ.9222.42空载额定...
