CURVE INFORMATION AND TABLES
7-36
Curve: IEC B
Curve #: 1 2 3 4 5678910111213141516
x P/U Time to Trip (seconds)
1.03 22.291 45.510 68.266 91.021 109.225 136.531 156.036 182.042 218.450 218.450 273.063 273.063 273.063 364.083 364.083 364.083
1.10 6.742 13.485 20.227 27.306 34.133 40.454 47.489 54.613 60.681 68.266 72.817 84.019 91.021 91.021 99.295 109.225
1.20 3.371 6.742 10.113 13.485 16.804 20.227 23.745 27.306 30.340 34.133 37.664 40.454 43.690 47.489 49.648 54.613
1.30 2.252 4.495 6.742 9.027 11.260 13.485 15.830 17.906 20.227 22.291 24.824 27.306 29.520 31.207 34.133 36.408
1.40 1.688 3.371 5.057 6.742 8.467 10.113 11.872 13.485 15.170 16.804 18.513 20.227 21.845 23.745 25.401 27.306
1.50 1.350 2.697 4.045 5.407 6.742 8.091 9.416 10.814 12.136 13.485 14.760 16.302 17.617 18.832 20.227 21.417
1.60 1.125 2.252 3.371 4.495 5.630 6.742 7.858 9.027 10.113 11.260 12.412 13.485 14.563 15.830 16.804 17.906
1.70 0.964 1.930 2.890 3.860 4.812 5.779 6.742 7.692 8.669 9.666 10.604 11.620 12.555 13.485 14.372 15.384
1.80 0.843 1.688 2.528 3.371 4.217 5.057 5.904 6.742 7.585 8.467 9.256 10.113 10.923 11.872 12.701 13.485
1.90 0.750 1.500 2.252 3.001 3.753 4.495 5.251 6.001 6.742 7.481 8.275 9.027 9.752 10.502 11.260 12.003
2.00 0.675 1.350 2.026 2.697 3.371 4.045 4.728 5.407 6.068 6.742 7.430 8.091 8.808 9.416 10.113 10.814
2.10 0.614 1.227 1.842 2.454 3.068 3.678 4.300 4.920 5.516 6.136 6.742 7.380 7.973 8.600 9.179 9.840
2.20 0.562 1.125 1.688 2.252 2.815 3.371 3.943 4.495 5.057 5.630 6.171 6.742 7.331 7.858 8.467 9.027
2.30 0.519 1.038 1.558 2.077 2.594 3.112 3.629 4.153 4.668 5.201 5.719 6.241 6.742 7.282 7.802 8.338
2.40 0.482 0.964 1.447 1.930 2.411 2.890 3.371 3.860 4.334 4.812 5.302 5.779 6.277 6.742 7.233 7.692
2.50 0.450 0.900 1.350 1.799 2.252 2.697 3.148 3.605 4.045 4.495 4.942 5.407 5.841 6.314 6.742 7.186
2.60 0.422 0.843 1.266 1.688 2.109 2.528 2.952 3.371 3.793 4.217 4.648 5.057 5.489 5.904 6.314 6.742
2.70 0.397 0.794 1.191 1.588 1.986 2.385 2.779 3.175 3.569 3.972 4.369 4.770 5.152 5.573 5.969 6.350
2.80 0.375 0.750 1.125 1.500 1.873 2.252 2.626 3.001 3.371 3.753 4.122 4.495 4.876 5.251 5.630 6.001
2.90 0.355 0.711 1.066 1.420 1.776 2.133 2.488 2.844 3.194 3.558 3.915 4.267 4.628 4.965 5.328 5.689
3.00 0.338 0.675 1.012 1.350 1.688 2.026 2.364 2.697 3.034 3.371 3.715 4.045 4.387 4.728 5.057 5.407
3.10 0.321 0.643 0.964 1.285 1.606 1.930 2.252 2.570 2.890 3.213 3.535 3.860 4.185 4.495 4.812 5.152
3.20 0.307 0.614 0.920 1.227 1.534 1.842 2.146 2.454 2.758 3.068 3.371 3.678 3.986 4.300 4.609 4.920
3.30 0.293 0.587 0.880 1.174 1.468 1.762 2.053 2.349 2.638 2.936 3.232 3.523 3.819 4.106 4.404 4.688
3.40 0.281 0.562 0.843 1.125 1.406 1.688 1.968 2.252 2.528 2.815 3.094 3.371 3.653 3.943 4.217 4.495
3.50 0.270 0.540 0.810 1.080 1.350 1.621 1.890 2.159 2.433 2.697 2.968 3.241 3.512 3.779 4.045 4.317
3.60 0.260 0.519 0.779 1.038 1.299 1.558 1.817 2.077 2.339 2.594 2.859 3.112 3.371 3.629 3.901 4.153
3.70 0.250 0.500 0.750 1.000 1.250 1.500 1.750 2.000 2.252 2.499 2.751 3.001 3.251 3.501 3.753 4.001
3.80 0.241 0.482 0.723 0.964 1.206 1.447 1.688 1.930 2.171 2.411 2.651 2.890 3.130 3.371 3.617 3.860
3.90 0.233 0.466 0.698 0.931 1.163 1.397 1.630 1.861 2.096 2.329 2.558 2.793 3.026 3.260 3.490 3.728
4.00 0.225 0.450 0.675 0.900 1.125 1.350 1.576 1.799 2.026 2.252 2.477 2.697 2.928 3.148 3.371 3.605
4.10 0.218 0.436 0.653 0.871 1.089 1.307 1.523 1.742 1.961 2.176 2.395 2.613 2.830 3.051 3.270 3.479
4.20 0.211 0.422 0.633 0.843 1.054 1.266 1.476 1.688 1.900 2.109 2.319 2.528 2.744 2.952 3.166 3.371
4.30 0.205 0.409 0.614 0.818 1.023 1.227 1.432 1.638 1.842 2.045 2.252 2.454 2.658 2.867 3.068 3.270
4.40 0.199 0.397 0.596 0.794 0.993 1.191 1.390 1.588 1.788 1.986 2.185 2.385 2.582 2.779 2.976 3.175
4.50 0.193 0.386 0.579 0.771 0.964 1.157 1.350 1.543 1.736 1.930 2.121 2.314 2.505 2.697 2.890 3.085
4.60 0.188 0.375 0.562 0.750 0.938 1.125 1.313 1.500 1.688 1.873 2.061 2.252 2.438 2.626 2.815 3.001
4.70 0.182 0.365 0.547 0.730 0.912 1.094 1.277 1.460 1.642 1.823 2.008 2.189 2.369 2.552 2.737 2.920
4.80 0.178 0.355 0.533 0.711 0.888 1.066 1.244 1.420 1.599 1.776 1.954 2.133 2.309 2.488 2.664 2.844
4.90 0.173 0.346 0.519 0.692 0.865 1.038 1.211 1.384 1.558 1.731 1.903 2.077 2.252 2.422 2.594 2.772
5.00 0.169 0.338 0.506 0.675 0.843 1.012 1.181 1.350 1.519 1.688 1.858 2.026 2.193 2.364 2.528 2.697
5.10 0.165 0.329 0.494 0.658 0.823 0.988 1.152 1.318 1.482 1.647 1.811 1.975 2.142 2.304 2.471 2.632
5.20 0.161 0.321 0.482 0.643 0.804 0.964 1.125 1.285 1.447 1.606 1.767 1.930 2.088 2.252 2.411 2.570
5.30 0.157 0.314 0.471 0.628 0.785 0.942 1.099 1.255 1.413 1.569 1.726 1.883 2.042 2.198 2.354 2.511
5.40 0.153 0.307 0.460 0.614 0.767 0.920 1.074 1.227 1.381 1.534 1.688 1.842 1.993 2.146 2.299 2.454
5.50 0.150 0.300 0.450 0.600 0.750 0.900 1.050 1.200 1.350 1.500 1.650 1.799 1.950 2.100 2.252 2.401
5.60 0.147 0.293 0.440 0.587 0.734 0.880 1.028 1.174 1.321 1.468 1.613 1.762 1.906 2.053 2.202 2.349
5.70 0.144 0.287 0.431 0.575 0.718 0.861 1.006 1.149 1.293 1.435 1.581 1.723 1.867 2.012 2.154 2.299
5.80 0.141 0.281 0.422 0.562 0.703 0.843 0.984 1.125 1.266 1.406 1.547 1.688 1.830 1.968 2.109 2.252
5.90 0.138 0.276 0.413 0.551 0.689 0.827 0.964 1.102 1.240 1.377 1.515 1.652 1.791 1.930 2.065 2.202
6.00 0.135 0.270 0.405 0.540 0.675 0.810 0.945 1.080 1.215 1.350 1.484 1.621 1.756 1.890 2.026 2.159
6.50 0.123 0.245 0.368 0.491 0.614 0.737 0.859 0.982 1.104 1.227 1.350 1.472 1.595 1.717 1.842 1.964
7.00 0.112 0.225 0.338 0.450 0.562 0.675 0.787 0.900 1.012 1.125 1.237 1.350 1.462 1.576 1.688 1.799
7.50 0.104 0.208 0.312 0.415 0.519 0.623 0.727 0.831 0.934 1.038 1.143 1.247 1.350 1.454 1.558 1.662
8.00 0.096 0.193 0.289 0.386 0.482 0.579 0.675 0.771 0.868 0.964 1.060 1.157 1.254 1.350 1.447 1.543
8.50 0.090 0.180 0.270 0.360 0.450 0.540 0.630 0.720 0.810 0.900 0.990 1.080 1.169 1.260 1.350 1.439
9.00 0.084 0.169 0.253 0.338 0.422 0.506 0.591 0.675 0.760 0.843 0.928 1.012 1.097 1.181 1.266 1.350
9.50 0.079 0.159 0.238 0.318 0.397 0.477 0.556 0.635 0.715 0.794 0.874 0.953 1.032 1.112 1.191 1.270
10.00 0.075 0.150 0.225 0.300 0.375 0.450 0.525 0.600 0.675 0.750 0.825 0.900 0.975 1.050 1.125 1.200
10.50 0.071 0.142 0.213 0.284 0.355 0.426 0.497 0.568 0.639 0.711 0.782 0.853 0.924 0.995 1.066 1.137
11.00 0.068 0.135 0.202 0.270 0.338 0.405 0.472 0.540 0.607 0.675 0.743 0.810 0.877 0.945 1.012 1.080
11.50 0.064 0.129 0.193 0.257 0.321 0.386 0.450 0.514 0.579 0.643 0.707 0.771 0.836 0.900 0.964 1.028
12.00 0.061 0.123 0.184 0.245 0.307 0.368 0.430 0.491 0.552 0.614 0.675 0.737 0.798 0.859 0.920 0.982
12.50 0.059 0.117 0.176 0.235 0.293 0.352 0.411 0.470 0.528 0.587 0.646 0.704 0.763 0.822 0.880 0.939
13.00 0.056 0.112 0.169 0.225 0.281 0.338 0.394 0.450 0.506 0.562 0.619 0.675 0.731 0.787 0.843 0.900
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