無功補(bǔ)償計(jì)算公式及系數(shù)表

1、無功補(bǔ)償容量計(jì)算公式補(bǔ)償前功率因數(shù) 補(bǔ)償后功率因數(shù)有功功率COS1Sin1Tag2COS2Sin2Tag2T(KW)0.60.81.3333333330.90.43588989 0.48431300按提高電壓確定補(bǔ)償容量提高電壓值達(dá)到電壓值線路電抗，補(bǔ)償功率Q(Kvar）1100無功補(bǔ)償容量計(jì)算公式按提高電壓確定補(bǔ)償容量Qc=P*(tg1-tg2)有功功率P1300KW補(bǔ)償前功率因數(shù)COS10.6補(bǔ)償后功率因數(shù)COS10.99補(bǔ)償前功率因數(shù)正切值tg11.33補(bǔ)償前功率因數(shù)正切值tg20.14無功補(bǔ)償容量Qc1548kvar無無功功補(bǔ)補(bǔ)償償容容量量計(jì)計(jì)算算系系數(shù)數(shù)表表改改善善前前功功因因Cos

2、1擬擬改改善善功功因因：Cos2Cos20.800.800.850.850.900.900.910.910.920.920.930.930.940.940.950.950.500.500.9821.1121.2481.2761.3061.3371.3691.4030.510.510.9371.0671.2021.2311.2611.2911.3241.3580.520.520.8931.0231.1581.1871.2171.2471.2801.3140.530.530.8500.9801.1161.1441.1741.2051.2371.2710.540.540.8090.9391.0741

3、.1031.1331.1631.1961.2300.550.550.7680.8991.0341.0631.0921.1231.1561.1900.560.560.7290.8600.9951.0241.0531.0841.1161.1510.570.570.6910.8220.9570.9861.0151.0461.0791.1130.580.580.6550.7850.9200.9490.9791.0091.0421.0760.590.590.6180.7490.8840.9130.9420.9731.0061.0400.600.600.5830.7140.8490.8780.9070.9

4、380.9701.0050.610.610.5490.6790.8150.8430.8730.9040.9360.9700.620.620.5150.6460.7810.8100.8390.8700.9030.9370.630.630.4830.6130.7480.7770.8070.8370.8700.9040.640.640.4510.5810.7160.7450.7750.8050.8380.8720.650.650.4190.5490.6850.7140.7430.7740.8060.8400.660.660.3880.5190.6540.6830.7120.7430.7750.810

5、0.670.670.3580.4880.6240.6520.6820.7130.7450.7790.680.680.3280.4590.5940.6230.6520.6830.7150.7500.690.690.2990.4290.5650.5930.6230.6540.6860.7200.700.700.2700.4000.5360.5650.5940.6250.6571.2470.710.710.2420.3720.5080.5360.5660.5970.6290.6630.720.720.2140.3440.4800.5080.5380.5690.6010.6350.730.730.18

6、60.3160.4520.4810.5100.5410.5730.6080.740.740.1590.2890.4250.4530.4830.5140.5460.5800.750.750.1320.2620.3980.4260.4560.4870.5190.5530.760.760.1050.2350.3710.4000.4290.4600.4920.5260.770.770.0790.2090.3440.3730.4030.4330.4660.5000.780.780.0520.1830.3180.3470.3760.4070.4390.4740.790.790.0260.1560.2920

7、.3200.3500.3810.4130.4470.800.80-0.1300.2660.2940.3240.3550.3870.4210.810.81-0.1040.2400.2680.2980.3290.3610.3950.820.82-0.0780.2140.2420.2720.3030.3350.3690.830.83-0.0520.1880.2160.2460.2770.3090.3430.840.84-0.0260.1620.1900.2200.2510.2830.3170.850.85-0.1350.1640.1940.2250.2570.2910.860.86-0.1090.1

8、380.1670.1980.2300.2650.870.87-0.0820.1110.1410.1720.2040.2380.880.88-0.0550.0840.1140.1450.1770.2110.890.89-0.0280.0570.0860.1170.1490.1840.900.90-0.0290.0580.0890.1210.1560.910.91-0.0300.0600.0930.1270.920.92-0.0310.0630.0970.930.93-0.0320.0670.940.94-0.0340.950.95-0.960.96-0.970.97-0.980.98-0.990

9、.99-應(yīng)用例：設(shè)工廠負(fù)荷：500KWKVAR與F換算式：改善前功因：Cos1=0.6C(F)=擬改善功因：Cos2=0.95所需補(bǔ)償容量5001.005(由上表查得)50Hz時(shí)2F314 500KVAR60Hz時(shí)2F3770.960.960.970.970.980.980.990.99UnityUnity1.4401.4811.5291.5901.7321.3951.4361.4841.5441.6871.3511.3921.4401.5001.6431.3081.3491.3971.4581.6001.2671.3081.3561.4161.5591.2271.2681.3151.3761

10、.5181.1881.2291.2761.3371.4791.1501.1911.2381.2991.4411.1131.1541.2011.2621.4051.0771.1181.1651.2261.3681.0421.0831.1301.1911.3331.0071.0481.0961.1571.2990.9741.0151.0621.1231.2650.9410.9821.0301.0901.2330.9090.9500.9981.0581.2010.8770.9190.9661.0271.1690.8470.8880.9350.9961.1380.8160.8570.9050.9661

11、.1080.7870.8280.8750.9361.0780.7570.7980.8460.9071.0490.7290.7700.8170.8781.0200.7000.7410.7890.8490.9920.6720.7130.7610.8210.9640.6450.6860.7330.7940.9360.6170.6580.7060.7660.9090.5900.6310.6790.7390.8820.5630.6050.6520.7130.8550.5370.5780.6260.6860.8290.5110.5520.5990.6600.8020.4840.5250.5730.6340

12、.7760.4580.4990.5470.6080.7500.4320.4730.5210.5810.7240.4060.4470.4950.5560.6980.3800.4210.4690.5300.6720.3540.3950.4430.5030.6460.3280.3690.4170.4770.6200.3020.3430.3900.4510.5930.2750.3160.3640.4240.5670.2480.2890.3370.3970.5400.2210.2620.3090.3700.5120.1930.2340.2810.3420.4840.1640.2050.2530.3130.4560.1340.1750.2230.2840.4260.1040.1450.1920.2530.3950.0710.1