GE D90 Plus Instruction Manual page 198
Line distance protection system
Hide thumbs
Also See for D90 Plus:
- Instruction manual (694 pages) ,
- Communications manual (222 pages) ,
- Instruction manual (662 pages)
Table of Contents
Advertisement
GROUPED PROTECTION ELEMENTS
190
Table 8: IEC (BS) inverse time curve constants
IEC curve shape
IEC curve A (BS142)
IEC curve B (BS142)
IEC curve C (BS142)
IEC short inverse
Table 9: IEC (BS) curve trip times (in seconds)
Multiplier
Current (I / I
pickup
(TDM)
1.5
2.0
IEC curve A
0.05
0.860
0.501
0.10
1.719
1.003
0.20
3.439
2.006
0.40
6.878
4.012
0.60
10.317 6.017
0.80
13.755 8.023
1.00
17.194 10.029 6.302
IEC curve B
0.05
1.350
0.675
0.10
2.700
1.350
0.20
5.400
2.700
0.40
10.800 5.400
0.60
16.200 8.100
0.80
21.600 10.800 5.400
1.00
27.000 13.500 6.750
IEC curve C
0.05
3.200
1.333
0.10
6.400
2.667
0.20
12.800 5.333
0.40
25.600 10.667 4.000
0.60
38.400 16.000 6.000
0.80
51.200 21.333 8.000
1.00
64.000 26.667 10.000 5.333
IEC short time
0.05
0.153
0.089
0.10
0.306
0.178
0.20
0.612
0.356
0.40
1.223
0.711
0.60
1.835
1.067
0.80
2.446
1.423
1.00
3.058
1.778
K
E
0.140
0.020
13.500
1.000
80.000
2.000
0.050
0.040
)
3.0
4.0
5.0
6.0
0.315
0.249
0.214
0.192
0.630
0.498
0.428
0.384
1.260
0.996
0.856
0.767
2.521
1.992
1.712
1.535
3.781
2.988
2.568
2.302
5.042
3.984
3.424
3.070
4.980
4.280
3.837
0.338
0.225
0.169
0.135
0.675
0.450
0.338
0.270
1.350
0.900
0.675
0.540
2.700
1.800
1.350
1.080
4.050
2.700
2.025
1.620
3.600
2.700
2.160
4.500
3.375
2.700
0.500
0.267
0.167
0.114
1.000
0.533
0.333
0.229
2.000
1.067
0.667
0.457
2.133
1.333
0.914
3.200
2.000
1.371
4.267
2.667
1.829
3.333
2.286
0.056
0.044
0.038
0.034
0.111
0.088
0.075
0.067
0.223
0.175
0.150
0.135
0.445
0.351
0.301
0.269
0.668
0.526
0.451
0.404
0.890
0.702
0.602
0.538
1.113
0.877
0.752
0.673
PLUS
D90
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 7: PROTECTION
t
r
9.7
43.2
58.2
0.500
7.0
8.0
9.0
10.0
0.176
0.165
0.156
0.149
0.353
0.330
0.312
0.297
0.706
0.659
0.623
0.594
1.411
1.319
1.247
1.188
2.117
1.978
1.870
1.782
2.822
2.637
2.493
2.376
3.528
3.297
3.116
2.971
0.113
0.096
0.084
0.075
0.225
0.193
0.169
0.150
0.450
0.386
0.338
0.300
0.900
0.771
0.675
0.600
1.350
1.157
1.013
0.900
1.800
1.543
1.350
1.200
2.250
1.929
1.688
1.500
0.083
0.063
0.050
0.040
0.167
0.127
0.100
0.081
0.333
0.254
0.200
0.162
0.667
0.508
0.400
0.323
1.000
0.762
0.600
0.485
1.333
1.016
0.800
0.646
1.667
1.270
1.000
0.808
0.031
0.029
0.027
0.026
0.062
0.058
0.054
0.052
0.124
0.115
0.109
0.104
0.247
0.231
0.218
0.207
0.371
0.346
0.327
0.311
0.494
0.461
0.435
0.415
0.618
0.576
0.544
0.518
Advertisement
Table of Contents
