ABB Switzerland Ltd REG 316*4 1MRB520049-Uen / Rev. F
3-2
3.5.6. Inverse time overcurrent .......................... (Current-Inv) ........3-79
3.5.7. Directional definite time
overcurrent protection ........................... (DirCurrentDT) ........ 3-85
3.5.8. Directional inverse time
overcurrent protection ........................... (DirCurrentInv) ........3-93
3.5.9. Definite time NPS.......................................... (NPS-DT) ......3-105
3.5.10. Inverse time NPS .......................................... (NPS-Inv) ...... 3-111
3.5.11. Definite time over and undervoltage ........ (Voltage-DT) ......3-117
3.5.11.1. Definite time stator earth fault (95 %)...................................3-122
3.5.11.2. Rotor E/F protection.............................................................3-135
3.5.11.3. Interturn protection............................................................... 3-137
3.5.12. Peak value overvoltage........................... (Voltage-Inst) ......3-139
3.5.13. Underimpedance.....................................(Underimped) ......3-145
3.5.14. Underreactance .................................. (MinReactance) ......3-153
3.5.15. Power............................................................... (Power) ......3-165
3.5.16. Stator overload......................................(OLoad-Stator) ...... 3-179
3.5.17. Rotor overload .......................................(OLoad-Rotor) ......3-185
3.5.18. Frequency protection ................................ (Frequency) ......3-191
3.5.19. Rate-of-change of frequency protection.............. (df/dt) ......3-197
3.5.20. Overfluxing............................................... (Overexcitat) ......3-201
3.5.21. Inverse time overfluxing ...................................(U/f-Inv) ......3-205
3.5.22. Balanced voltage .....................................(Voltage-Bal) ......3-211
3.5.23. Overtemperature protection .......................(Overtemp.) ......3-219
3.5.24. Stator ground fault ....................................(Stator-EFP) ......3-227
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