US CURVES
0BCURVES FOR TIME CHARACTERISTICS
I.3.5. U5. SHORT TIME INVERSE
+
−
=
B
1
I
I
A
*
M
T
α
o
operate
A = 0,00342 = 0,00262
α
= 0,02 Tr = 0,323
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
0.5
0,163 0,172 0,215 0,850 1,753 0,898 0,469 0,326 0,211 0,124 0,078 0,054 0,038 0,029
0,024
0,6
0,196 0,207 0,258 1,020 2,103 1,077 0,563 0,392 0,254 0,149 0,094 0,064 0,045 0,035
0,028
0,7
0,228 0,241 0,301 1,190 2,454 1,257 0,657 0,457 0,296 0,173 0,110 0,075 0,053 0,041
0,033
0,8
0,261 0,276 0,345 1,360 2,805 1,436 0,751 0,522 0,338 0,198 0,125 0,086 0,060 0,046
0,038
1,0
0,326 0,345 0,431 1,700 3,506 1,795 0,939 0,653 0,423 0,248 0,157 0,107 0,075 0,058
0,047
1,5
0,489 0,517 0,646 2,550 5,259 2,693 1,408 0,979 0,634 0,371 0,235 0,161 0,113 0,087
0,071
2,0
0,653 0,689 0,861 3,400 7,011 3,590 1,878 1,305 0,845 0,495 0,313 0,214 0,150 0,116
0,095
2,5
0,816 0,861 1,077 4,250 8,764 4,488 2,347 1,632 1,057 0,619 0,391 0,268 0,188 0,145
0,118
3,0
0,979 1,034 1,292 5,100 10,517 5,385 2,816 1,958 1,268 0,743 0,470 0,322 0,226 0,174
0,142
3,5
1,142 1,206 1,507 5,950 12,270 6,283 3,286 2,284 1,479 0,867 0,548 0,375 0,263 0,203
0,166
4,0
1,305 1,378 1,723 6,800 14,023 7,180 3,755 2,611 1,691 0,990 0,626 0,429 0,301 0,232
0,189
4,5
1,468 1,550 1,938 7,650 15,776 8,078 4,225 2,937 1,902 1,114 0,705 0,482 0,338 0,261
0,213
5,0
1,631 1,723 2,153 8,500 17,529 8,975 4,694 3,263 2,113 1,238 0,783 0,536 0,376 0,290
0,236
5,5
1,794 1,895 2,369 9,350 19,281 9,873 5,163 3,590 2,325 1,362 0,861 0,589 0,414 0,319
0,260
6,0
1,958 2,067 2,584 10,200 21,034 10,770 5,633 3,916 2,536 1,486 0,939 0,643 0,451 0,348
0,284
6,5
2,121 2,239 2,799 11,050 22,787 11,668 6,102 4,242 2,747 1,609 1,018 0,697 0,489 0,377
0,307
7,0
2,284 2,412 3,015 11,900 24,540 12,565 6,572 4,569 2,959 1,733 1,096 0,750 0,526 0,406
0,331
7,5
2,447 2,584 3,230 12,750 26,293 13,463 7,041 4,895 3,170 1,857 1,174 0,804 0,564 0,435
0,355
8,0
2,610 2,756 3,445 13,600 28,046 14,360 7,511 5,221 3,381 1,981 1,253 0,857 0,601 0,464
0,378
8,5
2,773 2,929 3,661 14,450 29,799 15,258 7,980 5,548 3,593 2,105 1,331 0,911 0,639 0,493
0,402
9,0
2,936 3,101 3,876 15,300 31,551 16,155 8,449 5,874 3,804 2,229 1,409 0,965 0,677 0,522
0,426
9,5
3,099 3,273 4,091 16,150 33,304 17,053 8,919 6,200 4,015 2,352 1,487 1,018 0,714 0,551
0,449
10,0
3,263 3,445 4,307 17,000 35,057 17,951 9,388 6,527 4,227 2,476 1,566 1,072 0,752 0,580
0,473
10,5
3,426 3,618 4,522 17,850 36,810 18,848 9,858 6,853 4,438 2,600 1,644 1,125 0,789 0,609
0,497
11,0
3,589 3,790 4,737 18,700 38,563 19,746 10,327 7,179 4,649 2,724 1,722 1,179 0,827 0,638
0,520
11,5
3,752 3,962 4,953 19,550 40,316 20,643 10,796 7,506 4,860 2,848 1,801 1,232 0,865 0,667
0,544
12,0
3,915 4,134 5,168 20,400 42,069 21,541 11,266 7,832 5,072 2,971 1,879 1,286 0,902 0,696
0,567
12,5
4,078 4,307 5,383 21,250 43,821 22,438 11,735 8,158 5,283 3,095 1,957 1,340 0,940 0,725
0,591
13,0
4,241 4,479 5,599 22,100 45,574 23,336 12,205 8,485 5,494 3,219 2,035 1,393 0,977 0,754
0,615
13,5
4,405 4,651 5,814 22,950 47,327 24,233 12,674 8,811 5,706 3,343 2,114 1,447 1,015 0,783
0,638
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...