5-20
G650 Generator Protection & Control System
GEK-113285A
5.3 SYSTEM SETUP
5 SETTINGS
5
5.3SYSTEM SETUP
This section shows the settings related to the system setup definition.
5.3.1 GENERAL SETTINGS
This section determines the settings of the element configuration regarding its connection to the power system.
Access to these settings using the EnerVista 650 Setup software is at
Setpoint > System Setup > General settings.
The corresponding settings are shown on the table below:
Table 5–20: GENERAL SETTINGS
The system rated voltage is used as reference by the voltage restraint in the phase timed overcurrent element.
The Frequency reference marks the voltage channel to which the system Frequency is measured.
The auxiliary voltage setting can be selected between VG , VNand VX.
VX means that all elements using neutral voltage will take the value calculated from phase voltages.
and the synchrocheck function will measure the busbar voltage from the fourth voltage input. 25, 27X and 59X units will be
operative.
VN means that the neutral voltage is directly measured from the fourth voltage transformer. All elements using neutral volt-
age will take the value measured from the fouth voltage input. Measurements of single phase power value will be available
in delta connection. 25, 27X and 59X, 59G units will not be operative.
VG means that the ground voltage is directly measured from the fourth voltage transformer.
This means that all elements using neutral voltage will take the value calculated from phase voltages.
Measurements of single phase power value will not be available in delta connection as they cannot be duly calculated. 25,
27X and 59X units will not be operative. 67N and 67G functions will work only will calculated values from phases, so if volt-
age inputs are configured in delta connection this unit will not be operative.
59G function will be operative.
5.3.2 FLEX CURVES
The relay incorporates 4 user curves called Flex Curve A, B, C and D. The points for these curves are defined by the user
in
“Setpoint>System Setup>Flex Curves”
menu in EnerVista 650 Setup. User defined flex curves can be selected as an
operation curve in all the time overcurrent functions in the relay.
SETPOINT > SYSTEM SETUP > GENERAL SETTINGS
setting Description
Name
Default Value
Step
Range
Phase CT ratio
Phase CT Ratio
1.0
0.1
[1.0 : 6000.0]
Ground CT ratio
Ground CT Ratio
1.0
0.1
[1.0 : 6000.0]
Sensitive ground CT ratio
Stv Ground CT Ratio
1.0
0.1
[1.0 : 6000.0]
Phase VT ratio
Phase VT Ratio
1.0
0.1
[1.0 : 6000.0]
Phase VT connection
Phase VT Connection
WYE
N/A
[WYE – DELTA]
Rated voltage
Nominal Voltage
100.0
0.1
[1.0 : 500.0]
Rated Frequency
Nominal Frequency
50 Hz
N/A
[50-60]
Phase rotation
Phase Rotation
ABC
N/A
[ABC – ACB]
Frequency reference
Frequency Reference
VI
N/A
[VI-VII-VIII]
Auxiliary Voltage
Auxiliary Voltage
VX
N/A
[VX -VN- VG]
Snapshot Event generation
Snapshot Events
DISABLED
N/A
[DISABLED – ENABLED]
Frequency Tracking
Freq Tracking
DISABLED
N/A
[DISABLED – ENABLED]
Содержание Multilin G650
Страница 9: ...8 G650 Generator Protection Control System GEK 113285A TABLE OF CONTENTS ...
Страница 29: ...1 20 G650 Generator Protection Control System GEK 113285A 1 4 650 HARDWARE 1 GETTING STARTED 1 ...
Страница 293: ...5 150 G650 Generator Protection Control System GEK 113285A 5 9 LOGIC CONFIGURATION PLC EDITOR 5 SETTINGS 5 ...
Страница 391: ...11 6 G650 Generator Protection Control System GEK 113285A 11 4 RELAY CONFIGURATION 11 FREQUENTLY ASKED QUESTIONS 11 ...
Страница 426: ...GEK 113285A G650 Generator Protection Control System A 31 APPENDIX A A 1 LOGIC OPERANDS A ...
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Страница 595: ...D 8 G650 Generator Protection Control System GEK 113285A D 5 IEC 60870 5 104 POINT LIST APPENDIXD D ...
Страница 606: ...GEK 113285A G650 Generator Protection Control System E 11 APPENDIX E E 1 FACTORY DEFAULT LOGIC E ...
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Страница 639: ...G 2 G650 Generator Protection Control System GEK 113285A G 1 GE MULTILIN WARRANTY APPENDIXG G ...