Siemens SIPROTEC 4 Manual page 374

Overcurrent time protection
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Technical Data
4.3 Inverse-time Overcurrent Protection
[ausloese-rueckfallkennl-ansi-amz-stark-extrem-170502-wlk, 1, en_US]
Figure 4-5
374
Dropout time and trip time curves of the inverse time overcurrent protection, acc. to ANSI/IEEE
SIPROTEC 4, 7SJ80, Manual
E50417-G1140-C343-A8, Edition 12.2017

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