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1BIEC 255-4 AND BS142 CURVES
0BCURVES FOR TIME CHARACTERISTICS
Const.
Stand.
Inverse
Very
inverse
Ext.
Inverse
Short
Inverse
Long
Inverse
A
0.14
13.50
80.00
0.05
120
α
0.02
1.00
2.00
0.04
1
Tr
13.5
47.3
80
4.85
120
Below are shown for each type of characteristic curves for the indexes 0.05,0.06, 0.07,
0.08, 0.09, 0.10, 0.11, 0.12, 0.13, 0.14, 0.15, 0.16, 0.17, 0.18, 0.19, 0.20, 0.25, 0.30, 0.35,
0.40, 0.45, 0.50, 0.55, 0.60, 0.65, 0.70, 0.75, 080, 0.85, 0.90, 0.95, 1.00, 1.09
I.1.1. STANDARD INVERSE IEC CURVE
1
I
I
A
*
M
T
α
o
operate
−
=
A = 0,14
α
= 0,02 Tr = 13,5
Theoretical values given by the equation:
M \ I/Io
0,1
0,25
0,5
0,90
1,05
1,10
1,20
1,30
1,5
2
3
5
10
20
40
0.05
0,682
0,720
0,900
3,553
7,170
3,669
1,916
1,331
0,860
0,501
0,315
0,214
0,149
0,113
0,091
0.06
0,818
0,864
1,080
4,263
8,604
4,402
2,299
1,597
1,032
0,602
0,378
0,257
0,178
0,136
0,110
0.07
0,955
1,008
1,260
4,974
10,038
5,136
2,683
1,863
1,204
0,702
0,441
0,300
0,208
0,159
0,128
0.08
1,091
1,152
1,440
5,684
11,472
5,870
3,066
2,129
1,376
0,802
0,504
0,342
0,238
0,181
0,146
0.09
1,227
1,296
1,620
6,395
12,906
6,604
3,449
2,395
1,547
0,903
0,567
0,385
0,267
0,204
0,165
0.10
1,364
1,440
1,800
7,105
14,340
7,337
3,832
2,661
1,719
1,003
0,630
0,428
0,297
0,227
0,183
0.11
1,500
1,584
1,980
7,816
15,774
8,071
4,216
2,927
1,891
1,103
0,693
0,471
0,327
0,249
0,201
0.12
1,636
1,728
2,160
8,526
17,208
8,805
4,599
3,193
2,063
1,203
0,756
0,514
0,356
0,272
0,219
0.13
1,773
1,872
2,340
9,237
18,642
9,539
4,982
3,459
2,235
1,304
0,819
0,556
0,386
0,295
0,238
0.14
1,909
2,016
2,520
9,947
20,076 10,272
5,365
3,725
2,407
1,404
0,882
0,599
0,416
0,317
0,256
0.15
2,045
2,160
2,700
10,658 21,510 11,006
5,749
3,992
2,579
1,504
0,945
0,642
0,446
0,340
0,274
0.16
2,182
2,304
2,880
11,368 22,944 11,740
6,132
4,258
2,751
1,605
1,008
0,685
0,475
0,363
0,293
0.17
2,318
2,448
3,060
12,079 24,378 12,474
6,515
4,524
2,923
1,705
1,071
0,728
0,505
0,385
0,311
0.18
2,455
2,592
3,240
12,789 25,812 13,207
6,898
4,790
3,095
1,805
1,134
0,770
0,535
0,408
0,329
0.19
2,591
2,736
3,420
13,500 27,246 13,941
7,282
5,056
3,267
1,906
1,197
0,813
0,564
0,431
0,347
0.20
2,727
2,880
3,600
14,211 28,680 14,675
7,665
5,322
3,439
2,006
1,260
0,856
0,594
0,453
0,366
0.25
3,409
3,600
4,500
17,763 35,850 18,344
9,581
6,653
4,299
2,507
1,575
1,070
0,743
0,567
0,457
0.30
4,091
4,320
5,400
21,316 43,020 22,012 11,497
7,983
5,158
3,009
1,891
1,284
0,891
0,680
0,549
0.35
4,773
5,040
6,300
24,868 50,191 25,681 13,413
9,314
6,018
3,510
2,206
1,498
1,040
0,794
0,640
0.40
5,455
5,760
7,200
28,421 57,361 29,350 15,329 10,644
6,878
4,012
2,521
1,712
1,188
0,907
0,731
Summary of Contents for smART P500
Page 1: ...Instruction Manual Multifunction Protection Relay smART P500...
Page 23: ...2BTABLES INDEX THIS PAGE HAS BEEN LEFT BLANK INTENTIONALLY...
Page 39: ...5BHARDWARE FEATURES INTRODUCTION Figure 1 9 Wye Wye Connection measured neutral...
Page 40: ...5BHARDWARE FEATURES INTRODUCTION Figure 1 10 Wye Wye Connection sensitive neutral...
Page 41: ...5BHARDWARE FEATURES INTRODUCTION Figure 1 11 Open Delta Connection measured neutral...
Page 42: ...5BHARDWARE FEATURES INTRODUCTION Figure 1 12 Open Delta Connection sensitive neutral...
Page 511: ...2BANSI CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 6 Moderately ANSI curve...
Page 513: ...2BANSI CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 7 Very inverse ANSI curve...
Page 515: ...2BANSI CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 8 Extremely inverse ANSI curve...
Page 532: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 14 Recloser Curves 101 119...
Page 535: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 15 Recloser Curves 120 142...
Page 538: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 16 Recloser Curves 151 202...