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ABB REG670 - Page 478

ABB REG670
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Imeasured
IBase * I>
Pickup hysteresis
THETA
100
START
TRIP
ReclsLevTheta
tReset
t
t
t
IEC12000015-1-en.vsd
IEC12000015 V1 EN
Figure 222: Operating principles of the rotor overload function
Section 8 1MRK502052-UEN B
Current protection
472
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