Frequency Rate Of Change - GE F650 Instruction Manual

5 SETTINGS
Table 5–93: ANALOG COMPARATOR STATUS
The analog level value is by default in a reset state, when the value meets the comparison (inside or outside the
comparison band) the "Analog Level X" signal will be activated if the analog value remains active the time set in the analog
delay setting. When the activation conditions are not met the "Analog Level X" value will go to the reset state.
An analog change must remain active at least 40 ms to be considered, plus the analog time setting. Besides the snapshot
event data will have a 20 ms accuracy.
F650 uses a defined signal as frequency reference. This signal is analyzed by DSP and time between two consecutive
zero-crossing is measured. Reference signal is set in Setpoint > System Setup > General Settings > Frequency
Reference.
The settings can be selected at Setpoint > Control Elements > Frequency rate of change
Table 5–94: FREQUENCY RATE OF CHANGE SETTINGS
SETPOINT > CONTROL ELEMENTS > FREQUENCY RATE OF CHANGE
FREQUENCY RATE OF CHANGE 1 > FREQUENCY RATE OF CHANGE 2 > FREQUENCY RATE OF CHANGE 3
SETTING DESCRIPTION
Function Permission
Direction of the frequency change
Operation Value in Hz/s
Minimum required voltage in %
nominal voltage
Minimum Frequency Threshold
Maximum Frequency Threshold
Frequency rate Trip Delay
Snapshot Events Generation
GEK-106310AB
ANALOG COMPARATORS STATUS
Analog Level 01
Analog Level 02
Analog Level 03
Analog Level 04
Analog Level 05
Analog Level 06
Analog Level 07
Analog Level 08
Analog Level 09
Analog Level 10
Analog Level 11
Analog Level 12
Analog Level 13
Analog Level 14
Analog Level 15
Analog Level 16
Analog Level 17
Analog Level 18
Analog Level 19
Analog Level 20
NAME DEFAULT VALUE
Function DISABLED
Freq. rate trend INCREASING
Freq. rate pickup 0.50
Freq. rate OV supv 40.00
Freq. rate min 45.00
Freq. rate max 65.00
Freq. rate delay 0.00
Snapshot Events ENABLED
F650 Digital Bay Controller
5.5 CONTROL ELEMENTS

5.5.12 FREQUENCY RATE OF CHANGE

STEP RANGE
N/A [DISABLED – ENABLED]
N/A [INCREASING - DECREASING -
BI-DIRECTIONAL]
0.01 Hz/s [0.10 : 10.00]
0.01% [0.00 : 110.00]
0.01 Hz [20.00 : 80.00]
0.01 Hz [20.00 : 80.00]
0.01 s [0.00 : 60.00]
N/A [DISABLED – ENABLED]
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