GEK-113285A G650 Generator Protection & Control System 2-19
2 PRODUCT DESCRIPTION 2.4 TECHNICAL SPECIFICATIONS
2
2.4.2.6 FREQUENCY RATE OF CHANGE
df/dt trend increasing, decreasing, bi-directional
df/dt pickup level 0.10 to 10.00 Hz/s in steps of 0.01
df/dt level accuracy 80 mHz/s or 3.5%, whichever is greater
Overvoltage supv. 0.00 to 110.00 % in steps of 0.01
95% settling time for df/dt < 24 cycles
Operate time:
at 2 x pickup 12 cycles
at 3 x pickup 8 cycles
at 5 x pickup 6 cycles
Frequency Rate min. 20.00 to 80.00 Hz in steps of 0.01
Frequency Rate max. 20.00 to 80.00 Hz in steps of 0.01
Frequency Rate delay 0.00 to 60.00 s in steps of 0.01
Snapshot Events Selectable by setting
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