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1BIEC 255-4 AND BS142 CURVES
0BCURVES FOR TIME CHARACTERISTICS
I.1.3. EXTREMELY INVERSE IEC CURVE
1
I
I
A
*
M
T
α
o
operate
−
=
A = 80,0
α
= 2,0 Tr = 80,0
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
4,040
4,267
5,333
21,053 39,024 19,048
9,091
5,797
3,200
1,333
0,500
0,167
0,040
0,010
0,003
0.06
4,848
5,120
6,400
25,263 46,829 22,857
10,909
6,957
3,840
1,600
0,600
0,200
0,048
0,012
0,003
0.07
5,657
5,973
7,467
29,474 54,634 26,667
12,727
8,116
4,480
1,867
0,700
0,233
0,057
0,014
0,004
0.08
6,465
6,827
8,533
33,684 62,439 30,476
14,545
9,275
5,120
2,133
0,800
0,267
0,065
0,016
0,004
0.09
7,273
7,680
9,600
37,895 70,244 34,286
16,364 10,435
5,760
2,400
0,900
0,300
0,073
0,018
0,005
0.10
8,081
8,533
10,667
42,105 78,049 38,095
18,182 11,594
6,400
2,667
1,000
0,333
0,081
0,020
0,005
0.11
8,889
9,387
11,733
46,316 85,854 41,905
20,000 12,754
7,040
2,933
1,100
0,367
0,089
0,022
0,006
0.12
9,697
10,240 12,800
50,526 93,659 45,714
21,818 13,913
7,680
3,200
1,200
0,400
0,097
0,024
0,006
0.13
10,505 11,093 13,867
54,737 101,463 49,524
23,636 15,072
8,320
3,467
1,300
0,433
0,105
0,026
0,007
0.14
11,313 11,947 14,933
58,947 109,268 53,333
25,455 16,232
8,960
3,733
1,400
0,467
0,113
0,028
0,007
0.15
12,121 12,800 16,000
63,158 117,073 57,143
27,273 17,391
9,600
4,000
1,500
0,500
0,121
0,030
0,008
0.16
12,929 13,653 17,067
67,368 124,878 60,952
29,091 18,551 10,240
4,267
1,600
0,533
0,129
0,032
0,008
0.17
13,737 14,507 18,133
71,579 132,683 64,762
30,909 19,710 10,880
4,533
1,700
0,567
0,137
0,034
0,009
0.18
14,545 15,360 19,200
75,789 140,488 68,571
32,727 20,870 11,520
4,800
1,800
0,600
0,145
0,036
0,009
0.19
15,354 16,213 20,267
80,000 148,293 72,381
34,545 22,029 12,160
5,067
1,900
0,633
0,154
0,038
0,010
0.20
16,162 17,067 21,333
84,211 156,098 76,190
36,364 23,188 12,800
5,333
2,000
0,667
0,162
0,040
0,010
0.25
20,202 21,333 26,667 105,263 195,122 95,238
45,455 28,986 16,000
6,667
2,500
0,833
0,202
0,050
0,013
0.30
24,242 25,600 32,000 126,316 234,146 114,286 54,545 34,783 19,200
8,000
3,000
1,000
0,242
0,060
0,015
0.35
28,283 29,867 37,333 147,368 273,171 133,333 63,636 40,580 22,400
9,333
3,500
1,167
0,283
0,070
0,018
0.40
32,323 34,133 42,667 168,421 312,195 152,381 72,727 46,377 25,600
10,667
4,000
1,333
0,323
0,080
0,020
0.45
36,364 38,400 48,000 189,474 351,220 171,429 81,818 52,174 28,800
12,000
4,500
1,500
0,364
0,090
0,023
0.50
40,404 42,667 53,333 210,526 390,244 190,476 90,909 57,971 32,000
13,333
5,000
1,667
0,404
0,100
0,025
0.55
44,444 46,933 58,667 231,579 429,268 209,524 100,000 63,768 35,200
14,667
5,500
1,833
0,444
0,110
0,028
0.60
48,485 51,200 64,000 252,632 468,293 228,571 109,091 69,565 38,400
16,000
6,000
2,000
0,485
0,120
0,030
0.65
52,525 55,467 69,333 273,684 507,317 247,619 118,182 75,362 41,600
17,333
6,500
2,167
0,525
0,130
0,033
0.70
56,566 59,733 74,667 294,737 546,341 266,667 127,273 81,159 44,800
18,667
7,000
2,333
0,566
0,140
0,035
0.75
60,606 64,000 80,000 315,789 585,366 285,714 136,364 86,957 48,000
20,000
7,500
2,500
0,606
0,150
0,038
0.80
64,646 68,267 85,333 336,842 624,390 304,762 145,455 92,754 51,200
21,333
8,000
2,667
0,646
0,160
0,040
0.85
68,687 72,533 90,667 357,895 663,415 323,810 154,545 98,551 54,400
22,667
8,500
2,833
0,687
0,170
0,043
0.90
72,727 76,800 96,000 378,947 702,439 342,857 163,636 104,348 57,600
24,000
9,000
3,000
0,727
0,180
0,045
0.95
76,768 81,067 101,333 400,000 741,463 361,905 172,727 110,145 60,800
25,333
9,500
3,167
0,768
0,190
0,048
1.00
80,808 85,333 106,667 421,053 780,488 380,952 181,818 115,942 64,000
26,667 10,000
3,333
0,808
0,201
0,050
1,09
88,081 93,013 116,267 458,947 850,732 415,238 198,182 126,377 69,760
29,067 10,900
3,633
0,881
0,219
0,055
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...