Siemens SIPROTEC 7UM62 Manual page 218

Multifunctional machine protection
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Functions
2.30 100-%-Stator Earth Fault Protection with 3rd Harmonics (ANSI 27/59TN 3rd Harm.)
Figure 2-94
Logic diagram of the 100% stator earth fault protection
218
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010

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