8.5.7.2 Internal polarizing facility of the function...............................................................................499
8.5.7.3 External polarizing for negative sequence function............................................................. 499
8.5.7.4 Internal negative sequence protection structure..................................................................500
8.5.7.5 Four negative sequence overcurrent stages.......................................................................... 500
8.5.7.6 Directional supervision element with integrated directional comparison function.......501
8.5.8 Technical data.................................................................................................................................. 503
8.6 Sensitive directional residual overcurrent and power protection SDEPSDE (67N)................ 504
8.6.1 Identification....................................................................................................................................504
8.6.2 Functionality.....................................................................................................................................504
8.6.3 Function block..................................................................................................................................506
8.6.4 Signals................................................................................................................................................507
8.6.5 Settings............................................................................................................................................. 508
8.6.6 Monitored data.................................................................................................................................510
8.6.7 Operation principle..........................................................................................................................510
8.6.7.1 Function inputs............................................................................................................................. 510
8.6.8 Technical data...................................................................................................................................516
8.7 Thermal overload protection, two time constants TRPTTR (49)................................................ 517
8.7.1 Identification.....................................................................................................................................518
8.7.2 Functionality..................................................................................................................................... 518
8.7.3 Function block.................................................................................................................................. 518
8.7.4 Signals................................................................................................................................................ 518
8.7.5 Settings..............................................................................................................................................519
8.7.6 Monitored data................................................................................................................................ 520
8.7.7 Operation principle......................................................................................................................... 520
8.7.8 Technical data...................................................................................................................................524
8.8 Breaker failure protection CCRBRF(50BF)...................................................................................... 524
8.8.1 Identification.................................................................................................................................... 524
8.8.2 Functionality..................................................................................................................................... 524
8.8.3 Function block.................................................................................................................................. 525
8.8.4 Signals................................................................................................................................................ 525
8.8.5 Settings..............................................................................................................................................526
8.8.6 Monitored data.................................................................................................................................527
8.8.7 Operation principle..........................................................................................................................527
8.8.8 Technical data...................................................................................................................................533
8.9 Stub protection STBPTOC (50STB)...................................................................................................533
8.9.1 Identification.....................................................................................................................................533
8.9.2 Functionality..................................................................................................................................... 533
8.9.3 Function block.................................................................................................................................. 534
8.9.4 Signals................................................................................................................................................534
8.9.5 Settings..............................................................................................................................................534
8.9.6 Monitored data.................................................................................................................................535
8.9.7 Operation principle..........................................................................................................................535
8.9.8 Technical data...................................................................................................................................536
Table of contents
10
Technical manual
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