无功补偿详细的容量确定计算方法-
补偿容量的确定可以根据负荷的最大功率、补偿前的功率因数及 要求补偿后达到的功率因数,用下式计算确定:
Q = a *P* (tan ? i —tan ? 2)
式中:Q —所需补偿的总无功功率,kvar;
a —平均负荷系数,取0.7~0.8;
P —用户最大负荷,kW;
tan? 1—补偿前平均功率因数角 tan? 2—补偿后平均功率因数角
或 Q = a *P*q
q —补偿率,kvar / kW (可从附表中查取) 附表:每kW负荷所需无功补偿率值查取表
COS? 1 0.50 0.51 0.52 0.53 0.54 0.55 0.56 0.57 0.58 0.59 COS ? 2 0.80 0.81 0.82 0.83 0.84 0.85 0.86 0.87 0.88 0.89 0.90 0.91 0.92 0.93 0.94 0.95 0.96 0.981 1.008 1.035 1.060 1.086 1.117 1.138 1.166 1.192 1.219 1.246 1.276 1.300.939 0.966 0.933 1.018 1.044 1.070 1.106 1.134 1.160 1.187 1.214 1.244 1.270.890 0.917 0.945 0.969 0.995 1.021 1.047 1.075 1.101 1.128 1.155 1.185 3 1.210.819 0.876 0.903 0.928 0.954 0.980 1.006 1.034 1.060 1.087 1.114 1.144 1.170.808 0.835 0.862 0.887 0.913 0.939 0.965 0.993 1.019 1.046 1.075 1.103 1.130.766 0.793 0.820 0.815 0.871 0.897).0923 0.951 0.977 1.004 1.031 1.061 1.090.728 0.755 0.782 0.807 0.829 0.859 0.885 0.913 0.939 0.966 0.991 1.023 1.052 0.691 0.718 0.745 0.770 0.796 0.822 0.846 0.876 0.902 0.929 0.956 0.986 1.010.655 0.682 0.709 0.734 0.760 0.786 0.812 0.840 0.866 0.893 0.920 0.950 0.970.618 0.645 0.672 0.697 0.723 0.749 0.775 0.803 0.829 0.856 0.883 0.913 0.941.338 1.361.306 1.336 1.271.247 1.120 1.201.165 1.191.123 1.151.085 1.115 1.048 1.071.012 1.040.975 1.001.404 1.442 1.372 1.410 1.313 1.351 1.236 1.272 1.231 1.269 1.189 1.227 1.151 1.189 1.114 1.520 1.078 1.116 1.041 1.079 0.60 0.61 0.62 0.63 0.64 0.583 0.610 0.637 0.662 0.688 0.714 0.740 0.768 0.794 0.821 0.848 0.878 0.900.549 0.576 0.603 0.628 0.654 0.680 0.706 0.734 0.760 0.787 0.841 0.844 0.870.515 0.547 0.560 0.594 0.620 0.640 0.672 0.700 0.726 0.753 0.780 0.810 0.839 0.481 0.508 0.535 0.560 0.586 0.612 0.638 0.666 0.692 0.719 0.746 0.776 0.800.450 0.477 0.504 0.529 0.555 0.581 0.607 0.635 0.661 0.688 0.715 0.745 0.770.940 0.970.906 0.930.872 0.902 0.838 0.860.807 0.831.006 1.044 0.972 1.010 0.938 0.974 0.904 0.942 0.873 0.911 COS? 1 0.80 0.81 0.82 0.83 0.84 0.65 0.66 0.67 0.68 0.69 0.70 0.71 0.72 0.73 0.74 0.75 0.76 0.77 0.78 0.79 0.80 0.81 0.82 0.83 0.84 0.85 cos ? 2 0.85 0.86 0.87 0.88 0.89 0.90 0.91 0.92 0.93 0.94 0.95 0.96 0.774 0.800.745 0.770.714 0.740.684 4 0.710.654 0.680.627 0.650.598 0.620.569 0.590.542 0.570.488 6 0.510.460 0.490.840 0.870.811 0.840.780 0.818 0.780.750 0.720 0.750.693 0.731 0.664 0.720.635 0.670.608 0.640.580 0.618 0.590.554 0.526 0.560.501 0.530.475 0.510.447 0.480.421 0.450.395 0.432 0.400.369 0.343 0.380.317 0.350.291 0.320.417 0.444 0.471 0.496 0.522 0.548 0.574 0.602 0.628 0.655 0.682 0.712 0.740.386 0.415 0.442 0.467 0.493 0.519 0.545 0.573 0.599 0.626 0.654 0.683 0.710.357 0.384 0.411 0.436 0.462 0.488 0.514 0.542 0.566 0.595 0.622 0.652 0.680.327 0.354 0.381 0.406 0.432 0.458 0.484 0.512 0.538 0.565 0.594 0.622 1 0.650.297 0.324 0.351 0.376 0.402 0.428 0.454 0.482 0.508 0.535 0.562 0.592 0.620.270 0.297 0.323 0.349 0.375 0.401 0.427 0.455 0.481 0.508 0.535 0.565 0.590.241 0.268 0.295 0.320 0.346 0.372 0.398 0.426 0.452 0.479 0.506 0.536 0.560.212 0.239 0.266 0.291 0.317 0.343 0.371 0.397 0.425 0.450 0.477 0.507 0.530.185 0.212 0.239 0.264 0.290 0.316 0.342 0.370 0.396 0.423 0.450 0.480 0.500.157 0.184 0.211 0.236 0.262 0.288 0.315 0.342 0.368 0.395 0.425 0.452 )0.481 0.514 0.540.131 0.158 0.185 0.210 0.236 0.262 0.288 0.316 0.342 0.369 0.396 0.426 0.450.103 0.130 0.157 0.182 0.208 0.234 0.260 0.288 0.316 0.341 0.368 0.398 0.420.078 0.105 0.132 0.157 0.183 0.209 0.235 0.263 0.289 0.316 0.343 0.373 )0.402 0.435 0.460.052 0.079 0.106 0.131 0.157 0.183 0.209 0.237 0.263 0.290 0.317 0.347 0.370.024 0.051 0.078 0.103 0.129 0.155 0.181 0.209 0.235 0.262 0.289 0.319 0.340.026 0.052 0.078 0.104 0.130 0.157 0.183 0.210 0.238 0.266 0.294 0.32 0.409 0.430.381 0.410.355 0.380.329 0.360.303 1 0.330.277 0.300.251 0.280.225 0.25 0.026 0.052 0.078 0.104 0.131 0.157 0.180 0.212 0.240 0.268 0.290.026 0.052 0.078 0.104 0.131 0.158 0.186 0.213 0.242 8 0.27 0.026 0.052 0.079 0.105 0.132 0.160 0.188 0.216 0.24 0.026 0.053 0.079 0.106 0.134 0.162 0.190 0.22 0.026 0.053 0.080 0.107 0.135 0.164 0.19