Synchrocheck; Tracking Frequency - GE D30 series Instruction Manual
Line distance protection
system.
ur series
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Also See for D30 series:
- Instruction manual (686 pages) ,
- Communications manual (532 pages) ,
- Instruction manual (486 pages)
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6 ACTUAL VALUES
MESSAGE
MESSAGE
MESSAGE
The metered values for real, reactive, and apparent power, as well as power factor, 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
TEM SETUP
SIGNAL SOURCES
g) FREQUENCY METERING
PATH: ACTUAL VALUES
METERING
FREQUENCY
SRC 1
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
is measured via software-implemented zero-crossing detection of an AC signal. The signal is either a
SOURCE FREQUENCY
Clarke transformation of three-phase voltages or currents, auxiliary voltage, or ground current as per source configuration
(see the
SYSTEM SETUP
final frequency measurement is passed through a validation filter that eliminates false readings due to signal distortions and
transients.
PATH: ACTUAL VALUES
METERING
SYNCHROCHECK 1
MESSAGE
MESSAGE
The actual values menu for synchrocheck 2 is identical to that of synchrocheck 1. If a synchrocheck function setting is "Dis-
abled", the corresponding actual values menu item will not be displayed.
PATH: ACTUAL VALUES
METERING
TRACKING FREQUENCY
The tracking frequency is displayed here. The frequency is tracked based on the selection of the reference source with the
FREQUENCY AND PHASE REFERENCE
Power System section of chapter 5 for additional details.
GE Multilin
SRC 1
POWER FACTOR
a:
1.000
SRC 1
POWER FACTOR
b:
1.000
SRC 1
POWER FACTOR
c:
1.000
).
SOURCE SRC 1
SRC 1
FREQUENCY:
0.00 Hz
SETTINGS
settings). The signal used for frequency estimation is low-pass filtered. The
POWER SYSTEM
SYNCHROCHECK
SYNCHROCHECK 1 DELTA
VOLT:
0.000 V
SYNCHROCHECK 1 DELTA
PHASE:
0.0°
SYNCHROCHECK 1 DELTA
FREQ:
0.00 Hz
TRACKING FREQUENCY
TRACKING FREQUENCY:
60.00 Hz
setting in the
SETTINGS
D30 Line Distance Protection System
FREQUENCY
SYSTEM SETUP
SIGNAL SOURCES
SYNCHROCHECK 1(2)
SYSTEM SETUP
POWER SYSTEM
6.3 METERING
SETTINGS
SYS-
).
6.3.3 SYNCHROCHECK
6.3.4 TRACKING FREQUENCY
menu. Refer to the
6-17
6
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