Siemens siprotec 7SA522 - Technical Data

10-17SA522 Manual
C53000-G1176-C119-2
Technical Data 10
This chapter provides the technical data of the SIPROTEC
®
4 7SA522 device and its
individual functions, including the limiting values that must not be exceeded under any
circumstances. The electrical and functional data of fully equipped 7SA522 devices
are followed by the mechanical data, with dimensional drawings.
10.1 General Device Data 10-2
10.2 Distance Protection 10-10
10.3 Power Swing Supplement 10-12
10.4 Distance Protection Teleprotection Schemes 10-13
10.5 Earth Fault Protection in Earthed Systems 10-14
10.6 Earth Fault Protection Teleprotection Schemes 10-20
10.7 Weak-Infeed Tripping 10-20
10.8 External Direct and Remote Tripping 10-20
10.9 Overcurrent Protection 10-21
10.10 High-Current Switch-On-To-Fault Protection 10-23
10.11 Automatic Re-closure Function 10-23
10.12 Synchronism and Voltage Check (Dead-line / Dead-bus Check) 10-24
10.13 Overvoltage Protection 10-25
10.14 Fault Location 10-26
10.15 Circuit Breaker Failure Protection 10-26
10.16 Monitoring Functions 10-27
10.17 Supplementary Functions 10-28
10.18 Dimensions 10-30