KCEG142 데이터 시트보기 (PDF) - Unspecified
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KCEG142 Datasheet PDF : 22 Pages
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IEC and special application curves
10000
ANSI/IEEE curves
10000
Rectifier
curve
1000
1000
100
100
10.000
1.000
10
10
LTI 30xDT
SI 30xDT
1
1
EI 10xDT
VI 30xDT
STI 30xDT
0.1
0.1
1
10
100
1
10
Multiples of setting
Multiples of setting
LTI 30xDT
SI 30xDT*
EI 10xDT*
VI 30xDT*
STI 30xDT
Long time inverse
Standard inverse
Extremely inverse
Very inverse
Shot time inverse
MI Moderately inverse
VI Very inverse
EI Extremely inverse
*IEC standard characteristic
All characteristics are definite time above 30x except extremely inverse.
Figure 12: IDMT curves.
MI
VI
EI
100
0.100
0.010
No pre-fault load
Pre-fault load at
50% thermal state
Pre-fault load at
70% thermal state
Pre-fault load at
90% thermal state
0.001
1
2
3
4
5
6
Current (xlth>)
Figure 13: Thermal curves
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