GE B30 Instruction Manual page 406
Bus differential system
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- Instruction manual (626 pages) ,
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GROUPED ELEMENTS
Multiplier
Current ( I / I
(TDM)
1.5
8.0
27.183
10.0
33.979
IAC Very Inverse
0.5
1.451
1.0
2.901
2.0
5.802
4.0
11.605
6.0
17.407
8.0
23.209
10.0
29.012
IAC Inverse
0.5
0.578
1.0
1.155
2.0
2.310
4.0
4.621
6.0
6.931
8.0
9.242
10.0
11.552
IAC Short Inverse
5
0.5
0.072
1.0
0.143
2.0
0.286
4.0
0.573
6.0
0.859
8.0
1.145
10.0
1.431
2
I
t curves
2
The I
t curves are derived as follows:
where
T = Operate time (in seconds)
TDM = Multiplier setting
I = Input current
I
= Pickup Current setting
pickup
T
= reset time in seconds (assuming energy capacity is 100% and RESET is "Timed")
RESET
2
Table 5-31: I
t curve trip times
Multiplier
(TDM)
0.01
0.10
5-198
)
pickup
2.0
3.0
4.0
11.987
4.846
2.844
14.983
6.058
3.555
0.656
0.269
0.172
1.312
0.537
0.343
2.624
1.075
0.687
5.248
2.150
1.374
7.872
3.225
2.061
10.497
4.299
2.747
13.121
5.374
3.434
0.375
0.266
0.221
0.749
0.532
0.443
1.499
1.064
0.885
2.997
2.128
1.770
4.496
3.192
2.656
5.995
4.256
3.541
7.494
5.320
4.426
0.047
0.035
0.031
0.095
0.070
0.061
0.190
0.140
0.123
0.379
0.279
0.245
0.569
0.419
0.368
0.759
0.559
0.490
0.948
0.699
0.613
Current ( I / I
)
pickup
1.5
2.0
3.0
0.44
0.25
0.11
4.44
2.50
1.11
5.0
6.0
7.0
1.966
1.487
1.191
2.457
1.859
1.488
0.133
0.113
0.101
0.266
0.227
0.202
0.533
0.453
0.405
1.065
0.906
0.810
1.598
1.359
1.215
2.131
1.813
1.620
2.663
2.266
2.025
0.196
0.180
0.168
0.392
0.360
0.337
0.784
0.719
0.674
1.569
1.439
1.348
2.353
2.158
2.022
3.138
2.878
2.695
3.922
3.597
3.369
0.028
0.027
0.026
0.057
0.054
0.052
0.114
0.108
0.105
0.228
0.217
0.210
0.341
0.325
0.314
0.455
0.434
0.419
0.569
0.542
0.524
4.0
5.0
6.0
0.06
0.04
0.03
0.63
0.40
0.28
B30 BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS
8.0
9.0
0.991
0.848
1.239
1.060
0.093
0.087
0.186
0.174
0.372
0.349
0.745
0.698
1.117
1.046
1.490
1.395
1.862
1.744
0.160
0.154
0.320
0.307
0.640
0.614
1.280
1.229
1.921
1.843
2.561
2.457
3.201
3.072
0.026
0.025
0.051
0.050
0.102
0.100
0.204
0.200
0.307
0.301
0.409
0.401
0.511
0.501
7.0
8.0
9.0
0.02
0.02
0.01
0.20
0.16
0.12
10.0
0.741
0.926
0.083
0.165
0.331
0.662
0.992
1.323
1.654
0.148
0.297
0.594
1.188
1.781
2.375
2.969
0.025
0.049
0.099
0.197
0.296
0.394
0.493
Eq. 5-8
10.0
0.01
0.10
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