GEK-113285A
G650 Generator Protection & Control System
5-95
5 SETTINGS
5.5 CONTROL ELEMENTS
5
Table 5–90: 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.
5.5.9 FREQUENCY RATE OF CHANGE
G650 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 5–91: FREQUENCY RATE OF CHANGE SETTINGS
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
SETPOINT > CONTROL ELEMENTS > FREQUENCY RATE OF CHANGE
FREQUENCY RATE OF CHANGE 1 > FREQUENCY RATE OF CHANGE 2 > FREQUENCY RATE OF CHANGE 3
SETTING DESCRIPTION
NAME
DEFAULT VALUE
STEP
RANGE
Function Permission
Function
DISABLED
N/A
[DISABLED – ENABLED]
Direction of the frequency change
Freq. rate trend
INCREASING
N/A
[INCREASING - DECREASING -
BI-DIRECTIONAL]
Operation Value in Hz/s
Freq. rate pickup
0.50
0.01 Hz/s [0.10 : 10.00]
Minimum required voltage in %
nominal voltage
Freq. rate OV supv
40.00
0.01%
[0.00 : 110.00]
Minimum Frequency Threshold
Freq. rate min
45.00
0.01 Hz
[20.00 : 80.00]
Maximum Frequency Threshold
Freq. rate max
65.00
0.01 Hz
[20.00 : 80.00]
Frequency rate Trip Delay
Freq. rate delay
0.00
0.01 s
[0.00 : 60.00]
Snapshot Events Generation
Snapshot Events
ENABLED
N/A
[DISABLED – ENABLED]
Summary of Contents for Multilin G650
Page 9: ...8 G650 Generator Protection Control System GEK 113285A TABLE OF CONTENTS ...
Page 426: ...GEK 113285A G650 Generator Protection Control System A 31 APPENDIX A A 1 LOGIC OPERANDS A ...
Page 427: ...A 32 G650 Generator Protection Control System GEK 113285A A 1 LOGIC OPERANDS APPENDIXA A ...
Page 587: ...C 22 G650 Generator Protection Control System GEK 113285A C 8 ANALOG INPUTS APPENDIXC C ...
Page 639: ...G 2 G650 Generator Protection Control System GEK 113285A G 1 GE MULTILIN WARRANTY APPENDIXG G ...