Siemens siprotec 7SA6 User Manual page 9

5.2.3 Control Commands for Switching Devices ........................................................................ 5-13
5.2.4 Establishing Information Properties................................................................................... 5-18
5.2.5 Performing Configuration................................................................................................... 5-26
5.2.6 Transferring Metered Values ............................................................................................. 5-33
5.2.7 Settings for Contact Chatter Blocking................................................................................ 5-35
5.3 Creating User Defined Functions with CFC....................................................................... 5-37
5.4 Establishing a Default Display ........................................................................................... 5-46
5.5 Draft of a Feeder Control Display ...................................................................................... 5-50
5.6 Serial Interfaces ................................................................................................................ 5-52
5.7 Date and Time Stamping................................................................................................... 5-56
6 Functions........................................................................................................................................... 6-1
6.1 General................................................................................................................................ 6-2
6.1.1 Power System Data 1.......................................................................................................... 6-7
6.1.1.1 Settings ............................................................................................................................. 6-11
6.1.2 Setting Groups .................................................................................................................. 6-13
6.1.2.1 Settings ............................................................................................................................ 6-15
6.1.2.2 Information Overview......................................................................................................... 6-15
6.1.3 General Protection Data .................................................................................................... 6-16
6.1.3.1 Settings ............................................................................................................................. 6-24
6.1.3.2 Information Overview ........................................................................................................ 6-25
6.2 Distance Protection ........................................................................................................... 6-28
6.2.1 Earth Fault Recognition ..................................................................................................... 6-28
6.2.1.1 Method of Operation.......................................................................................................... 6-28
6.2.1.2 Setting of the Parameters for this Function ....................................................................... 6-31
6.2.2 Fault detection ................................................................................................................... 6-31
6.2.2.1 Overcurrent Fault Detection .............................................................................................. 6-31
6.2.2.2 Voltage-Dependent Current Fault Detection U/I................................................................ 6-32
6.2.2.3 Voltage and Phase-Angle Dependent Current Fault Detection U/I/j.................................. 6-35
6.2.2.4 Applying the Function Parameter Settings ........................................................................ 6-36
6.2.2.5 Settings ............................................................................................................................. 6-40
6.2.2.6 Information Overview ........................................................................................................ 6-41
6.2.3 Calculation of the Impedances .......................................................................................... 6-41
6.2.3.1 Method of Operation.......................................................................................................... 6-41
6.2.3.2 Applying the Function Parameter Settings ........................................................................ 6-48
6.2.3.3 Settings ............................................................................................................................. 6-51
6.2.3.4 Information Overview......................................................................................................... 6-52
6.2.4 Distance Protection with Polygonal Tripping Characteristic .............................................. 6-54
6.2.4.1 Method of Operation.......................................................................................................... 6-54
6.2.4.2 Applying the Function Parameter Settings ........................................................................ 6-59
6.2.4.3 Settings ............................................................................................................................. 6-63
6.2.5 Tripping Logic of the Distance Protection.......................................................................... 6-66
6.2.5.1 Method of Operation.......................................................................................................... 6-66
6.2.5.2 Applying the Function Parameter Settings ........................................................................ 6-70
6.3 Measures to Be Taken in Case of Power Swings ............................................................. 6-71
7SA6 Manual
C53000-G1176-C133-1
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