ABB REJ 523 Technical Reference Manual page 17

Overcurrent relay
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ABB Substation Automation
Products and Systems
1MRS750940-MUM
Technical Reference Manual
t/s
70
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9
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0.9
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0.09
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Figure 4.1.3.2-1 Normal inverse time characteristics
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k
1.0
0.9
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0.05
20 I/I>
REJ 523
17

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