Siemens siprotec 7SA6 User Manual

xv7SA6 Manual
C53000-G1176-C133-1
10 Technical Data ................................................................................................................................ 10-1
10.1 General Device Data.........................................................................................................10-2
10.1.1 Analog Inputs .................................................................................................................... 10-2
10.1.2 Power Supply .................................................................................................................... 10-2
10.1.3 Binary Inputs and Outputs.................................................................................................10-3
10.1.4 Communications Interfaces............................................................................................... 10-5
10.1.5 Electrical Tests.................................................................................................................. 10-7
10.1.6 Mechanical Stress Tests ...................................................................................................10-9
10.1.7 Climatic Stress Tests....................................................................................................... 10-10
10.1.8 Service Conditions........................................................................................................... 10-10
10.1.9 Construction .................................................................................................................... 10-11
10.2 Distance Protection ......................................................................................................... 10-12
10.3 Power Swing Supplement ............................................................................................... 10-14
10.4 Distance Protection Teleprotection Schemes.................................................................. 10-15
10.5 Earth Fault Protection in Earthed Systems...................................................................... 10-16
10.6 Earth Fault Protection Teleprotection Schemes.............................................................. 10-23
10.7 Weak-Infeed Tripping ...................................................................................................... 10-23
10.8 External Direct and Remote Tripping .............................................................................. 10-24
10.9 Overcurrent Protection .................................................................................................... 10-25
10.10 High-Current Switch-On-To-Fault Protection................................................................... 10-28
10.11 Earth Fault Detection in a Non-Earthed System.............................................................. 10-28
10.12 Automatic Reclosure Function......................................................................................... 10-29
10.13 Synchronism and Voltage Check (Dead-line / Dead-bus Check).................................... 10-30
10.14 Voltage Protection ........................................................................................................... 10-31
10.15 Fault Location.................................................................................................................. 10-33
10.16 Circuit Breaker Failure Protection.................................................................................... 10-33
10.17 Thermal Overload Protection........................................................................................... 10-35
10.18 Monitoring Functions ....................................................................................................... 10-37
10.19 Supplementary Functions................................................................................................ 10-38
10.20 Dimensions...................................................................................................................... 10-40
A Appendix ...........................................................................................................................................A-1
A.1 Ordering Information and Accessories ...............................................................................A-2
A.1.1 Accessories .........................................................................................................................A-9
A.2 General Diagrams .............................................................................................................A-11

Siemens siprotec 7SA6 Specifications

General

Brand	Siemens
Model	siprotec 7SA6
Category	Relays
Language	English