Siemens Argus 7SR21 Technical Manual page 316

7SR21 & 7SR22 Performance Specification
2.6.3 Operate and Reset Time ........................................................................................ 26
2.7 46NPS Negative Phase Sequence Overcurrent .................................................................. 27
2.7.1 Reference (46DT) .................................................................................................. 27
2.7.2 Operate and Reset Level (46DT)............................................................................ 27
2.7.3 Operate and Reset Time (46DT) ............................................................................ 27
2.7.4 Reference (46IT) .................................................................................................... 27
2.7.5 Operate and Reset Time (46IT) .............................................................................. 28
2.8 47 Negative Phase Sequence Voltage................................................................................ 29
2.8.1 Reference (47) ....................................................................................................... 29
2.8.2 Operate and Reset Level (47) ................................................................................ 29
2.8.3 Operate and Reset Time (47) ................................................................................. 29
2.9 49 Thermal Overload .......................................................................................................... 30
2.9.1 Reference .............................................................................................................. 30
2.9.2 Operate and Reset Level ....................................................................................... 30
2.9.3 Operate and Reset Time ........................................................................................ 30
2.10 50 Instantaneous Overcurrent ............................................................................................ 32
2.10.1 Reference .............................................................................................................. 32
2.10.2 Operate and Reset Level ....................................................................................... 32
2.10.3 Operate and Reset Time ........................................................................................ 32
2.11 50G Instantaneous Measured Earth Fault........................................................................... 33
2.11.1 Reference .............................................................................................................. 33
2.11.2 Operate and Reset Level ....................................................................................... 33
2.11.3 Operate and Reset Time ........................................................................................ 33
2.12 50N Instantaneous Derived Earth Fault .............................................................................. 34
2.12.1 Reference .............................................................................................................. 34
2.12.2 Operate and Reset Level ....................................................................................... 34
2.12.3 Operate and Reset Time ........................................................................................ 34
2.13 50SEF Instantaneous Sensitive Earth Fault ........................................................................ 35
2.13.1 Reference .............................................................................................................. 35
2.13.2 Operate and Reset Level ....................................................................................... 35
2.13.3 Operate and Reset Time ........................................................................................ 35
2.14 51 Time Delayed Overcurrent ............................................................................................. 36
2.14.1 Reference .............................................................................................................. 36
2.14.2 Operate and Reset Level ....................................................................................... 36
2.14.3 Operate and Reset Time ........................................................................................ 37
2.15 51G Time Delayed Measured Earth Fault ........................................................................... 41
2.15.1 Reference .............................................................................................................. 41
2.15.2 Operate and Reset Level ....................................................................................... 41
2.15.3 Operate and Reset Time ........................................................................................ 42
2.16 51N Time Delayed Derived Earth Fault ............................................................................... 43
2.16.1 Reference .............................................................................................................. 43
2.16.2 Operate and Reset Level ....................................................................................... 43
2.16.3 Operate and Reset Time ........................................................................................ 44
2.17 51SEF Time Delayed Sensitive Earth Fault ........................................................................ 45
2.17.1 Reference .............................................................................................................. 45
2.17.2 Operate and Reset Level ....................................................................................... 45
2.17.3 Operate and Reset Time ........................................................................................ 46
2.18 51V Voltage Controlled Overcurrent (Ph-Ph) ...................................................................... 47
2.18.1 Reference .............................................................................................................. 47
2.18.2 Operate and Reset Level ....................................................................................... 47
2.19 55 Power Factor ................................................................................................................. 48
2.19.1 Reference .............................................................................................................. 48
2.19.2 Operate and Reset Level ....................................................................................... 48
2.19.3 Operate and Reset Time ........................................................................................ 48
2.19.4 Operate Threshold ................................................................................................. 48
2.20 59N Neutral Voltage Displacement ..................................................................................... 49
2.20.1 Reference (59NDT) ................................................................................................ 49
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