Siemens siprotec 7SA6 User Manual

x 7SA6 Manual
C53000-G1176-C133-1
6.3.1 Method of Operation.......................................................................................................... 6-71
6.3.2 Applying the Function Parameter Settings ........................................................................6-73
6.3.3 Settings.............................................................................................................................. 6-74
6.3.4 Information Overview......................................................................................................... 6-74
6.4 Teleprotection Schemes with Distance Protection ............................................................ 6-75
6.4.1 Method of Operation.......................................................................................................... 6-76
6.4.1.1 Permissive Underreach Transfer Trip with Pick-up (PUTT)...............................................6-76
6.4.1.2 Permissive Underreach Transfer Trip with Zone Acceleration Z1B (PUTT)......................6-78
6.4.1.3 Direct Underreach Transfer Trip........................................................................................ 6-80
6.4.1.4 Permissive Overreach Transfer Trip (POTT).....................................................................6-81
6.4.1.5 Directional Comparison Pickup..........................................................................................6-84
6.4.1.6 Unblocking with Z1B.......................................................................................................... 6-86
6.4.1.7 Blocking scheme................................................................................................................6-89
6.4.1.8 Pilot Wire Comparison....................................................................................................... 6-92
6.4.1.9 Reverse Interlocking.......................................................................................................... 6-94
6.4.1.10 Transient Blocking .............................................................................................................6-95
6.4.1.11 Measures for Weak and Zero Infeed................................................................................. 6-95
6.4.2 Applying the Function Parameter Settings ........................................................................6-97
6.4.3 Settings............................................................................................................................6-100
6.4.4 Information Overview.......................................................................................................6-100
6.5 Earth Fault Protection in Earthed Systems......................................................................6-102
6.5.1 Method of Operation........................................................................................................6-102
6.5.2 Applying the Function Parameter Settings ......................................................................6-109
6.5.3 Settings............................................................................................................................6-116
6.5.4 Information Overview.......................................................................................................6-120
6.6 Earth Fault Protection Teleprotection Schemes ..............................................................6-121
6.6.1 Method of Operation........................................................................................................6-122
6.6.1.1 Directional Comparison Scheme.....................................................................................6-122
6.6.1.2 Directional Unblocking Scheme.......................................................................................6-124
6.6.1.3 Directional Blocking Scheme...........................................................................................6-126
6.6.1.4 Transient Blocking ...........................................................................................................6-128
6.6.1.5 Measures for Weak or Zero Infeed.................................................................................. 6-129
6.6.2 Applying the Function Parameter Settings ......................................................................6-131
6.6.3 Settings............................................................................................................................6-134
6.6.4 Information Overview.......................................................................................................6-134
6.7 Weak-Infeed Tripping ...................................................................................................... 6-135
6.7.1 Method of Operation........................................................................................................6-135
6.7.2 Applying the Function Parameter Settings ......................................................................6-137
6.7.3 Settings............................................................................................................................6-138
6.7.4 Information Overview.......................................................................................................6-138
6.8 External Direct and Remote Tripping...............................................................................6-139
6.8.1 Method of Operation........................................................................................................6-139
6.8.2 Applying the Function Parameter Settings ......................................................................6-140
6.8.3 Settings............................................................................................................................6-140
6.8.4 Information Overview.......................................................................................................6-140

Siemens siprotec 7SA6 Specifications

General

Brand	Siemens
Model	siprotec 7SA6
Category	Relays
Language	English