Siemens SIPROTEC 7SK80 Manual page 183

Motor protection
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Functions
2.11 Ground Fault Protection 64, 67N(s), 50N(s), 51N(s)
Figure 2-62
Logic diagram of the I
elements during cos ϕ/sin ϕ measurement
Ns
SIPROTEC, 7SK80, Manual
183
E50417-G1140-C344-A4, Release date 08.2010

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