Siemens SIPROTEC 4 7UT6 Series - Page 8

2.2.7 Setting Notes.............................................................................................................115
2.2.8 Settings.....................................................................................................................121
2.2.9 Information List.........................................................................................................122
2.3 Restricted Earth Fault Protection......................................................................................125
2.3.1 Application Examples.................................................................................................125
2.3.2 Function Description..................................................................................................128
2.3.3 Setting Notes.............................................................................................................133
2.3.4 Settings.....................................................................................................................134
2.3.5 Information List.........................................................................................................134
2.4 Time Overcurrent Protection for Phase and Residual Currents...........................................136
2.4.1 General..................................................................................................................... 136
2.4.1.1 Definite Time, Instantaneous Overcurrent Protection............................................ 136
2.4.1.2 Inverse Time Overcurrent Protection.....................................................................140
2.4.1.3 Manual Close Command.......................................................................................143
2.4.1.4 Dynamic Cold Load Pickup....................................................................................143
2.4.1.5 Inrush Restraint....................................................................................................143
2.4.1.6 Fast Busbar Protection Using Reverse Interlocking.................................................145
2.4.2 Time Overcurrent Protection for Phase Currents......................................................... 146
2.4.2.1 Setting Notes....................................................................................................... 146
2.4.2.2 Settings............................................................................................................... 152
2.4.2.3 Information List................................................................................................... 154
2.4.3 Time Overcurrent Protection for Residual Current.......................................................155
2.4.3.1 Setting Notes....................................................................................................... 155
2.4.3.2 Settings............................................................................................................... 159
2.4.3.3 Information List................................................................................................... 160
2.5 Time Overcurrent Protection for Earth Current.................................................................161
2.5.1 General..................................................................................................................... 161
2.5.2 Definite Time, Instantaneous Overcurrent Protection..................................................161
2.5.3 Inverse Time Overcurrent Protection.......................................................................... 163
2.5.4 Manual Close Command............................................................................................ 165
2.5.5 Dynamic Cold Load Pickup......................................................................................... 165
2.5.6 Inrush Restraint......................................................................................................... 165
2.5.7 Setting Notes.............................................................................................................166
2.5.8 Settings.....................................................................................................................169
2.5.9 Information List.........................................................................................................171
2.6 Dynamic Cold Load Pickup for Time Overcurrent Protection............................................. 172
2.6.1 Functional Description...............................................................................................172
2.6.2 Setting Notes.............................................................................................................174
2.6.3 Settings.....................................................................................................................175
2.6.4 Information List.........................................................................................................175
2.7 Single-Phase Time Overcurrent Protection....................................................................... 177
2.7.1 Functional Description...............................................................................................177
2.7.2 High-impedance Differential Protection......................................................................178
2.7.3 Tank Leakage Protection............................................................................................180
2.7.4 Setting Notes.............................................................................................................181
2.7.5 Settings.....................................................................................................................185
2.7.6 Information List.........................................................................................................185
Table of Contents
8 SIPROTEC 4, 7UT6x, Manual
C53000-G1176-C230-5, Edition 09.2016