Siemens 7SC80 Manual page 540

Siprotec compact feeder protection and recloser controller
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Technical Data
4.12 Negative Sequence Protection 46-TOC (Inverse Time Characteristic)
[ausloese-iec-schieflast-inv-stark-extr-lang-18012013, 1, en_US]
Figure 4-11
540
Tripping Characteristics of the Inverse Time Element of the Unbalanced Load Protection
according to IEC
SIPROTEC Compact, 7SC80, Manual
E50417-G1140-C486-A8, Edition 07.2017

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