Siemens siprotec 7SA6 User Manual

xii 7SA6 Manual
C53000-G1176-C133-1
6.17 Thermal Overload Protection...........................................................................................6-245
6.17.1 Method of Operation........................................................................................................6-245
6.17.2 Applying the Function Parameter Settings ......................................................................6-246
6.17.3 Settings............................................................................................................................6-248
6.17.4 Information Overview.......................................................................................................6-248
6.18 Analog Outputs................................................................................................................6-249
6.18.1 Method of Operation........................................................................................................6-249
6.18.2 Applying the Function Parameter Settings ......................................................................6-249
6.18.3 Settings............................................................................................................................6-252
6.19 Monitoring Functions .......................................................................................................6-254
6.19.1 Method of Operation........................................................................................................6-254
6.19.1.1 Hardware Monitoring .......................................................................................................6-254
6.19.1.2 Software–Monitoring........................................................................................................6-256
6.19.1.3 Monitoring of the External Instrument Transformer Circuits ............................................6-256
6.19.1.4 Trip Circuit Supervision....................................................................................................6-260
6.19.1.5 Response to Failures.......................................................................................................6-262
6.19.2 Applying the Function Parameter Settings ......................................................................6-264
6.19.3 Settings............................................................................................................................6-266
6.19.4 Information Overview.......................................................................................................6-267
6.20 Function Control ..............................................................................................................6-269
6.20.1 Detection of Line Energization.........................................................................................6-269
6.20.2 Processing of the Circuit Breaker Position ......................................................................6-270
6.20.3 Overall Fault Detection Logic of the Device.....................................................................6-273
6.20.4 Overall Tripping Logic of the Device................................................................................6-275
6.20.5 Circuit Breaker Trip Test..................................................................................................6-281
6.20.6 Applying the Function Parameter Settings ......................................................................6-282
6.20.7 Settings............................................................................................................................6-282
6.20.8 Information Overview.......................................................................................................6-283
6.21 Supplementary Functions................................................................................................6-284
6.21.1 Processing of Messages..................................................................................................6-284
6.21.2 Operational Measurement ...............................................................................................6-285
6.21.3 Data Storage for Fault Recording....................................................................................6-288
6.21.4 Applying the Function Parameter Settings ......................................................................6-288
6.21.5 Settings............................................................................................................................6-290
6.21.6 Information Overview.......................................................................................................6-291
6.22 Processing of Commands...............................................................................................6-295
6.22.1 Types of commands ........................................................................................................6-295
6.22.2 Steps in the Command Sequence...................................................................................6-296
6.22.3 Interlocking ......................................................................................................................6-297
6.22.3.1 Interlocked/Non-Interlocked Switching ............................................................................6-297
6.22.4 Recording and acknowledgement of commands.............................................................6-300

Siemens siprotec 7SA6 Specifications

General

Brand	Siemens
Model	siprotec 7SA6
Category	Relays
Language	English