功率因数补偿及第2 步.doc

此文档收集于网络，如有侵权，请联系网站删除1功率因数0.2到0.9之间的补偿电容量： C(uF)补偿前cos1补偿后cos= 0.9Cos78o = 0.20Cos77o = 0.22Cos76o = 0.24Cos75o = 0.26Cos74o = 0.28Cos73o = 0.30Cos72o = 0.31Cos71o = 0.33Cos70o = 0.34Cos69o = 0.36Cos68o = 0.37Cos67o = 0.39Cos66o = 0.41Cos65o = 0.42Cos64o = 0.44Cos63o = 0.45Cos62o = 0.47Cos61o = 0.48Cos60o = 0.50Cos59o = 0.52Cos58o = 0.53Cos57o = 0.54Cos56o = 0.56Cos55o = 0.57Cos54o = 0.59Cos53o = 0.60Cos52o = 0.62Cos51o = 0.63Cos50o = 0.64Cos49o = 0.66Cos48o = 0.67Cos47o = 0.68Cos46o = 0.69Cos45o = 0.70Cos44o = 0.72Cos43o = 0.73Cos42o = 0.74Cos41o = 0.75Cos40o = 0.76Cos39o = 0.77Cos38o = 0.78Cos37o = 0.79Cos36o = 0.80Cos35o = 0.81Cos34o = 0.82Cos33o = 0.83Cos32o = 0.84Cos31o = 0.85Cos30o = 0.86Cos29o = 0.87Cos28o = 0.88Cos27o = 0.892运用PLC输出点以及输出点上所接电容组合实现上述电容量：输出点123456789101112所接电容（uF）输出点131415161718192021222324所接电容（uF）3所需投入的组合电容对应的输出点数补偿电容C（uF）所需投入的组合电容对应的输出点数7（或8）7（或8）+97+8+9107（或8）+107+8+10117（或8）+117+8+11127（或8）+127+8+12137（或8）+137+8+13147（或8）+147+8+14157（或8）+157+8+15167（或8）+166+7（或8）+16177（或8）+176+7（或8）+17185+185+6+18195+195+6+19205+204+5+20214+213+4+21223+223+4+22233+232+3+23242+241+2+244 互感器（1）电流互感器 根据本课题的参数，额定工作电压：50HZ,AC220；输入电流 50A，由于PLC装置的电流是2A，分析后选择LMZJ1-0.5型电流互感器，电流比为50A/5A，穿心匝数为3。（2）电压互感器 根据本课题的参数，额定工作电压：50HZ,AC220；输入电