Siemens SIPROTEC 7UT63 series - Page 140

2 Functions
140
7UT613/63x Manual
C53000-G1176-C160-2
Figure 2-54 Restricted earth fault protection on an earthed shunt reactor with 2 CT sets
(treated like an auto-transformer)
Figure 2-55 Restricted earth fault protection on an earthed auto-transformer