9-20
G650 Generator Protection & Control System
GEK-113285A
9.15 FREQUENCY ELEMENTS (81O/81U)
9 COMMISSIONING
9
9.15 FREQUENCY ELEMENTS (81O/81U)
Set the relay to trip for the protection element being tested. Configure any of the outputs to be activated only by the
protection element being tested.
Set the relay as follows:
Apply voltage as indicated on the table, modifying frequency from the maximum threshold (48 Hz) to the minimum (46 Hz)
for 81U, and from the minimum (52 Hz) to the maximum (54 Hz) for 81O, in steps of 10 mHz.
Verify that the relay trips at the set frequency in the corresponding element with an error of 3% ó ±50 mHz.
Apply a voltage that is lower than the “Minimum Voltage” setting, with a frequency under (81U) or over (81O) the setting,
and verify that the relay does not trip.
GENERAL SETTINGS
Nominal Frequency
50 Hz
ELEMENT SETTINGS
FREQUENCY (81)
81U
81O
Function
ENABLED
ENABLED
Pickup Level
47.50 Hz
52.50 Hz
Trip Delay
2.00 sec
2.00 sec
Reset Delay
0.00 sec
0.00 sec
Minimum Voltage
30 V
30 V
ELEMENTS PHASE
PICKUP LEVEL
(HZ)
TRIP DELAY
(SECONDS)
APPLIED
VOLTAGE (V)
FREQUENCY
THRESHOLDS
TRIPPING TIME (S)
EXPECTED
ADMISSIBLE
81U
VII
47.5
2
80
48 Hz
No trip
NA
46 Hz
2
[1.9 –2.2]
25
46 Hz
No trip
NA
81 O
VII
52.5
2
80
52 Hz
No trip
NA
54 Hz
2
[1.9 –2.2]
25
54 Hz
No trip
NA
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 ...
Страница 427: ...A 32 G650 Generator Protection Control System GEK 113285A A 1 LOGIC OPERANDS APPENDIXA A ...
Страница 587: ...C 22 G650 Generator Protection Control System GEK 113285A C 8 ANALOG INPUTS APPENDIXC C ...
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 ...
Страница 607: ...E 12 G650 Generator Protection Control System GEK 113285A E 1 FACTORY DEFAULT LOGIC APPENDIXE E ...
Страница 639: ...G 2 G650 Generator Protection Control System GEK 113285A G 1 GE MULTILIN WARRANTY APPENDIXG G ...