AccuracyDrop-off (f, underfrequency) (Setting + 20 mHz) +/- 10 mHzDrop-off (f, overfrequency) (Setting - 20 mHz) +/- 10 mHzDrop-off (df/dt, falling, for settings between 10 mHz/s and100 mHz/s) (Setting + 5 mHz/s) +/- 10 mHz/sDrop-off (df/dt, falling, for settings greater than 100 mHz/s) (Setting + 50 mHz/s) +/- 5% or +/- 55 mHz/s, whichever isgreaterDrop-off (df/dt, rising, for settings between 10 mHz/s and100 mHz/s ) (Setting - 5 mHz/s) +/- 10 mHz/sDrop-off (df/dt, rising, for settings greater than 100 mHz/s) (Setting - 50 mHz/s) +/- 5% or +/- 55 mHz/s, whichever isgreaterOperating and Reset timeInstantaneous operating time (Freq AvCycles setting = 0) <125 msReset time time (df/dt AvCycles setting = 0) <400 ms5.4 INDEPENDENT RATE OF CHANGE OF FREQUENCY PROTECTIONAccuracyPick-up (df/dt) Setting +/- 3% or +/- 10 mHz/s, whichever is greaterDrop-off (df/dt, falling, for settings between 10 mHz/s and100 mHz/s) (Setting + 5 mHz/s) +/- 10 mHz/sDrop-off (df/dt, falling, for settings greater than 100 mHz/s) (Setting + 50 mHz/s) +/- 5% or +/- 55 mHz/s, whichever is greaterDrop-off (df/dt, rising, for settings between 10 mHz/s and100 mHz/s) (Setting - 5 mHz/s) +/- 10 mHz/sDrop-off (df/dt, rising, for settings greater than 100 mHz/s) (Setting - 50 mHz/s) +/- 5% or +/- 55 mHz/s, whichever is greaterOperating timer +/- 2% or 50 ms, whichever is greaterOperating and Reset timeOperating time (for ramps 2 x seting or greater) <200 msOperating time (for ramps 1.3 x seting or greater) <300 msReset time time (df/dt AvCycles setting = 0 for df/dt settings greater than0.1 Hz/s and no intentional time delay) <250 msReferecne Conditions: Tested with df/dt Average Cycles = 0 for df/dt settings greater than 0.1 Hz/s, and nointentional time delay.5.5 AVERAGE RATE OF CHANGE OF FREQUENCY PROTECTIONAccuracyPick-up (f) Setting +/- 10 mHzPick-up (Df/Dt) Setting +/- 100 mHz/sDrop-off (falling) (Setting + 20 mHz) +/- 10 mHzDrop-off (rising) (Setting - 20 mHz) +/- 10 mHzOperating timer +/- 2% or 30 ms, whichever is greaterChapter 22 - Technical Specifications P14D480 P14D-TM-EN-8
