6-22
F60 Feeder Protection System
GE Multilin
6.3 METERING
6 ACTUAL VALUES
6
DEMAND
menu. For each quantity, the relay displays the demand over the most recent demand time interval, the maxi-
mum demand since the last maximum demand reset, and the time and date stamp of this maximum demand value. Maxi-
mum demand quantities can be reset to zero with the
CLEAR RECORDS
CLEAR DEMAND RECORDS
command.
i) FREQUENCY METERING
PATH: ACTUAL VALUES
METERING
SOURCE SRC 1
FREQUENCY
The metered frequency values are displayed in this menu. The "SRC 1" text will be replaced by whatever name was pro-
grammed by the user for the associated source (see
SETTINGS
SYSTEM SETUP
SIGNAL SOURCES
).
SOURCE FREQUENCY
is measured via software-implemented zero-crossing detection of an AC signal. The signal is either a
Clarke transformation of three-phase voltages or currents, auxiliary voltage, or ground current as per source configuration
(see the
SYSTEM SETUP
POWER SYSTEM
settings). The signal used for frequency estimation is low-pass filtered. The
final frequency measurement is passed through a validation filter that eliminates false readings due to signal distortions and
transients.
j) CURRENT HARMONICS AND THD METERING
PATH: ACTUAL VALUES
METERING
SOURCE SRC 1
CURRENT HARMONICS
The metered current harmonics values are displayed in this menu. The "SRC 1" text will be replaced by whatever name
was programmed by the user for the associated source (see
SETTINGS
SYSTEM SETUP
SIGNAL SOURCES
). Current
harmonics are measured for each source for the total harmonic distortion (THD) and 2nd to 25th harmonics per phase.
k) VOLTAGE HARMONICS AND THD METERING
PATH: ACTUAL VALUES
METERING
SOURCE SRC 1
VOLTAGE HARMONICS
The metered voltage harmonics values are displayed in this menu. The “SRC 1” text will be replaced by the programmed
name for the associated source (see the
SETTINGS
SYSTEM SETUP
SIGNAL SOURCES
menu).
To extract the 2nd to 25th voltage harmonics, each harmonic is computed on a per-phase basis, where:
FREQUENCY
SRC 1
SRC 1 FREQUENCY:
0.00 Hz
CURRENT HARMONICS
SRC 1
SRC 1
THD Ia: 0.0
Ib: 0.0
Ic: 0.0%
MESSAGE
SRC 1
2ND Ia: 0.0
Ib: 0.0
Ic: 0.0%
MESSAGE
SRC 1
3RD Ia: 0.0
Ib: 0.0
Ic: 0.0%
↓
MESSAGE
SRC 1 25TH Ia: 0.0
Ib: 0.0
Ic: 0.0%
VOLTAGE HARMONICS
SRC 1
SRC 1
THD Va: 0.0
Vb: 0.0
Vc: 0.0%
MESSAGE
SRC 1
2ND Va: 0.0
Vb: 0.0
Vc: 0.0%
MESSAGE
SRC 1
3RD Va: 0.0
Vb: 0.0
Vc: 0.0%
↓
MESSAGE
SRC 1 25TH Va: 0.0
Vb: 0.0
Vc: 0.0%
Summary of Contents for F60
Page 10: ...x F60 Feeder Protection System GE Multilin TABLE OF CONTENTS ...
Page 30: ...1 20 F60 Feeder Protection System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Page 138: ...4 28 F60 Feeder Protection System GE Multilin 4 2 FACEPLATE INTERFACE 4 HUMAN INTERFACES 4 ...
Page 454: ...5 316 F60 Feeder Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Page 500: ...7 14 F60 Feeder Protection System GE Multilin 7 1 COMMANDS 7 COMMANDS AND TARGETS 7 ...
Page 508: ...8 8 F60 Feeder Protection System GE Multilin 8 2 FAULT LOCATOR 8 THEORY OF OPERATION 8 ...
Page 522: ...10 12 F60 Feeder Protection System GE Multilin 10 6 DISPOSAL 10 MAINTENANCE 10 ...
Page 660: ...B 116 F60 Feeder Protection System GE Multilin B 4 MEMORY MAPPING APPENDIX B B ...
Page 706: ...E 10 F60 Feeder Protection System GE Multilin E 1 IEC 60870 5 104 APPENDIX E E ...
Page 718: ...F 12 F60 Feeder Protection System GE Multilin F 2 DNP POINT LISTS APPENDIX F F ...
Page 728: ...H 8 F60 Feeder Protection System GE Multilin H 2 ABBREVIATIONS APPENDIX H H Z Impedance Zone ...
Page 730: ...H 10 F60 Feeder Protection System GE Multilin H 3 WARRANTY APPENDIX H H ...