GE F650 Instruction Manual page 183

5.4 PROTECTION ELEMENTS
Table 5–30: CONSTANTS FOR IEEE CURVES
IEEE CURVE SHAPE
IEEE Extremely Inverse
IEEE Very Inverse
IEEE Inverse
Table 5–31: TRIPPING TIME IN SECONDS FOR IEEE CURVES
DIAL CURRENT (I/ITAP)
1.5
IEEE Extremely Inverse
0.5 11.341
1.0 22.682
2.0 45.363
4.0 90.727
6.0 136.090
8.0 181.454
10.0 226.817
IEEE Very Inverse
0.5 8.090
1.0 16.179
2.0 32.358
5
4.0 64.716
6.0 97.074
8.0 129.432
10.0 161.790
IEEE Inverse
0.5 3.220
1.0 6.439
2.0 12.878
4.0 25.756
6.0 38.634
8.0 51.512
10.0 64.390
5-36
NAME
IEEE Ext Inv
IEEE Very Inv
IEEE Mod Inv
2.0 3.0 4.0
4.761 1.823 1.001
9.522 3.647 2.002
19.043 7.293 4.003
38.087 14.587 8.007
57.130 21.880 12.010
76.174 29.174 16.014
95.217 36.467 20.017
3.514 1.471 0.899
7.028 2.942 1.798
14.055 5.885 3.597
28.111 11.769 7.193
42.166 17.654 10.790
56.221 23.538 14.387
70.277 29.423 17.983
1.902 1.216 0.973
3.803 2.432 1.946
7.606 4.864 3.892
15.213 9.729 7.783
22.819 14.593 11.675
30.426 19.458 15.567
38.032 24.322 19.458
F650 Digital Bay Controller
A B
28.2 0.1217
19.61 0.491
0.0515 0.1140
5.0 6.0 7.0
0.648 0.464 0.355
1.297 0.927 0.709
2.593 1.855 1.418
5.187 3.710 2.837
7.780 5.564 4.255
10.374 7.419 5.674
12.967 9.274 7.092
0.654 0.526 0.450
1.308 1.051 0.900
2.616 2.103 1.799
5.232 4.205 3.598
7.849 6.308 5.397
10.465 8.410 7.196
13.081 10.513 8.995
0.844 0.763 0.706
1.688 1.526 1.412
3.377 3.051 2.823
6.753 6.102 5.647
10.130 9.153 8.470
13.507 12.204 11.294
16.883 15.255 14.117
5 SETTINGS
P TR
2.0000 29.1
2.0000 21.6
0.0200 4.85
8.0 9.0 10.0
0.285 0.237 0.203
0.569 0.474 0.407
1.139 0.948 0.813
2.277 1.897 1.626
3.416 2.845 2.439
4.555 3.794 3.252
5.693 4.742 4.065
0.401 0.368 0.345
0.802 0.736 0.689
1.605 1.472 1.378
3.209 2.945 2.756
4.814 4.417 4.134
6.418 5.889 5.513
8.023 7.361 6.891
0.663 0.630 0.603
1.327 1.260 1.207
2.653 2.521 2.414
5.307 5.041 4.827
7.960 7.562 7.241
10.614 10.083 9.654
13.267 12.604 12.068
GEK-106310AB