WEG SSW-07 Manual Del Usuario página 35

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Chapter 4 - SettING the SSW-07
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Time t(s)
10000
1000
100
10
1
S.F.=1 1x 2x 3x 4x
S.F.=1,15 1x 2x 3x 4x 5x 6x 7x 8x 9x 10x
Figure 4.8 - Thermal classes of motor protection in cold condition
Time t(s)
1000
100
10
1
0.1
1x 2x 3x
Figure 4.9 - Motor protection thermal classes in hot condition at 100 % ln
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5x 6x 7x 8x
4x 5x 6x 7x 8x
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Class 30
Class 25
Class 20
Class 15
Class 10
Class 5
x In motor
9x
current
Class 30
Class 25
Class 20
Class 15
Class 10
Class 5
x In motor
Current
9x S.F.=1
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