6-17SA522 Manual
C53000-G1176-C119-2
Functions 6
This chapter describes the numerous functions available in the SIPROTEC
®
7SA522
relay. The setting options for each function are defined, including instructions for re-
porting setting values and formulae where required.
6.1 General 6-2
6.2 Distance Protection 6-30
6.3 Measures to Be Taken in Case of Power Swings 6-72
6.4 Distance Protection Teleprotection Schemes 6-77
6.5 Earth Fault Protection in Earthed Systems 6-97
6.6 Earth Fault Protection Teleprotection Schemes 6-113
6.7 Weak-Infeed Tripping 6-126
6.8 External Direct and Remote Tripping 6-130
6.9 Overcurrent Protection 6-132
6.10 High-Current Switch-On-To-Fault Protection 6-149
6.11 Automatic reclosure function 6-151
6.12 Synchronism and Voltage Check (Dead-line / Dead-bus check) 6-181
6.13 Overvoltage Protection 6-191
6.14 Fault Location 6-195
6.15 Circuit Breaker Failure Protection 6-200
6.16 Monitoring Functions 6-216
6.17 Function Control 6-231
6.18 Supplementary Functions 6-246
6.19 Processing of Commands 6-253