Independent Rate Of Change Of Frequency Protection; Average Rate Of Change Of Frequency Protection - GE MiCOM P40 Agile Technical Manual

Chapter 22 - Technical Specifications
Drop-off (f, underfrequency)
Drop-off (f, overfrequency)
Drop-off (df/dt, falling, for settings between 10 mHz/s and
100 mHz/s)
Drop-off (df/dt, falling, for settings greater than 100 mHz/s)
Drop-off (df/dt, rising, for settings between 10 mHz/s and
100 mHz/s )
Drop-off (df/dt, rising, for settings greater than 100 mHz/s)
Instantaneous operating time (Freq AvCycles setting = 0)
Reset time time (df/dt AvCycles setting = 0)
5.4

INDEPENDENT RATE OF CHANGE OF FREQUENCY PROTECTION

Pick-up (df/dt)
Drop-off (df/dt, falling, for settings between 10 mHz/s and
100 mHz/s)
Drop-off (df/dt, falling, for settings greater than 100 mHz/s) (Setting + 50 mHz/s) +/- 5% or +/- 55 mHz/s, whichever is greater
Drop-off (df/dt, rising, for settings between 10 mHz/s and
100 mHz/s)
Drop-off (df/dt, rising, for settings greater than 100 mHz/s) (Setting - 50 mHz/s) +/- 5% or +/- 55 mHz/s, whichever is greater
Operating timer
Operating time (for ramps 2 x seting or greater)
Operating time (for ramps 1.3 x seting or greater)
Reset time time (df/dt AvCycles setting = 0 for df/dt settings greater than
0.1 Hz/s and no intentional time delay)
Referecne Conditions: Tested with df/dt Average Cycles = 0 for df/dt settings greater than 0.1 Hz/s, and no
intentional time delay.
5.5

AVERAGE RATE OF CHANGE OF FREQUENCY PROTECTION

Pick-up (f)
Pick-up (Df/Dt)
Drop-off (falling)
Drop-off (rising)
Operating timer
480
Accuracy
(Setting + 20 mHz) +/- 10 mHz
(Setting - 20 mHz) +/- 10 mHz
(Setting + 5 mHz/s) +/- 10 mHz/s
(Setting + 50 mHz/s) +/- 5% or +/- 55 mHz/s, whichever is
greater
(Setting - 5 mHz/s) +/- 10 mHz/s
(Setting - 50 mHz/s) +/- 5% or +/- 55 mHz/s, whichever is
greater
Operating and Reset time
Accuracy
Setting +/- 3% or +/- 10 mHz/s, whichever is greater
(Setting + 5 mHz/s) +/- 10 mHz/s
(Setting - 5 mHz/s) +/- 10 mHz/s
+/- 2% or 50 ms, whichever is greater
Operating and Reset time
Accuracy
Setting +/- 10 mHz
Setting +/- 100 mHz/s
(Setting + 20 mHz) +/- 10 mHz
(Setting - 20 mHz) +/- 10 mHz
+/- 2% or 30 ms, whichever is greater
<125 ms
<400 ms
<200 ms
<300 ms
<250 ms
P14D
P14D-TM-EN-8