Siemens Siprotec 7UM612 - Page 137

2.22 Sensitive Earth Fault Protection (ANSI 51GN, 64R)
137
7UM61 Manual
C53000-G1176-C127-3
Figure 2-47 Logic Diagram of the Sensitive Earth Fault Protection
Figure 2-48 Application Case as Rotor Earth Fault Protection (7XR61 – Series Device for
Rotor Earth Fault Protection; 3PP13 – from Uexc > 150 V, Resistors in 7XR61
are then to be Shorted!)
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