Siemens Argus 7SR21 Technical Manual page 209

7SR220 Settings Guide
3.4.6.5. 50SEF-1 .................................................................................................. 30
3.4.6.6. 50SEF-2 .................................................................................................. 30
3.4.6.7. 50SEF-3 .................................................................................................. 30
3.4.6.8. 50SEF-4 .................................................................................................. 30
3.4.7. Restricted E/F .................................................................................................... 31
3.4.8. NPS Overcurrent ............................................................................................... 31
3.4.8.1. 46IT .......................................................................................................... 31
3.4.8.2. 46DT ........................................................................................................ 31
3.4.9. Under Current .................................................................................................... 32
3.4.9.1. 37-1 .......................................................................................................... 32
3.4.9.2. 37-2 .......................................................................................................... 32
3.4.9.3. 37G-1 ....................................................................................................... 32
3.4.9.4. 37G-2 ....................................................................................................... 32
3.4.9.5. 37SEF-1 .................................................................................................. 33
3.4.9.6. 37SEF-2 .................................................................................................. 33
3.4.10. Thermal ......................................................................................................... 33
3.4.11. ARC Flash Detector ..................................................................................... 33
3.5. Voltage Protection......................................................................................................... 33
3.5.1. Phase U/O Voltage ............................................................................................ 33
3.5.2. 27/59-1 ................................................................................................................ 34
3.5.3. 27/59-2 ................................................................................................................ 34
3.5.4. 27/59-3 ................................................................................................................ 35
3.5.5. 27/59-4 ................................................................................................................ 35
3.6. Vx U/O Voltage .............................................................................................................. 36
3.7. NPS Overvoltage .......................................................................................................... 36
3.7.1. 47-1 ..................................................................................................................... 36
3.7.2. 47-2 ..................................................................................................................... 36
3.8. Neutral Overvoltage ...................................................................................................... 37
3.8.1. 59NIT .................................................................................................................. 37
3.8.2. 59NDT ................................................................................................................. 37
3.9. U/O Frequency .............................................................................................................. 37
3.9.1. 81-1 ..................................................................................................................... 38
3.9.2. 81-2 ..................................................................................................................... 38
3.9.3. 81-3 ..................................................................................................................... 38
3.9.4. 81-4 ..................................................................................................................... 39
3.9.5. 81-5 ..................................................................................................................... 39
3.9.6. 81-6 ..................................................................................................................... 40
3.10. Supervision .................................................................................................................... 40
3.10.1. CB Fail .......................................................................................................... 40
3.10.2. VT Supervision ............................................................................................. 40
3.10.3. CT Supervision............................................................................................. 41
3.10.4. Broken Conductor ........................................................................................ 41
3.10.5. Trip CCT Supervision .................................................................................. 42
3.10.6. Close CCT Supervision ............................................................................... 42
3.10.7. Inrush Detector ............................................................................................. 42
3.10.8. Load Blinder ................................................................................................. 43
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