Synchrocheck; Tracking Frequency - GE D30 Instruction Manual

6.3 METERING
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
 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
 SYNCHROCHECK 1
6

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
 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.
6-16
SRC 1 POWER FACTOR
MESSAGE
a:
SRC 1 POWER FACTOR
MESSAGE
b:
SRC 1 POWER FACTOR
MESSAGE
c:
).
 
METERING SOURCE SRC 1
SRC 1 FREQUENCY:
0.00 Hz
 settings). The signal used for frequency estimation is low-pass filtered. The
POWER SYSTEM
 
METERING

SYNCHROCHECK

SYNCHROCHECK 1 DELTA
VOLT: 0.000 V
SYNCHROCHECK 1 DELTA
MESSAGE
PHASE:
SYNCHROCHECK 1 DELTA
MESSAGE
FREQ:
 
METERING

TRACKING FREQUENCY

TRACKING FREQUENCY:
60.00 Hz
setting in the
SETTINGS
D30 Line Distance Protection System
1.000
1.000
1.000

FREQUENCY

SETTINGS SYSTEM SETUP

SYNCHROCHECK 1(2)
0.0°
0.00 Hz

SYSTEM SETUP
6 ACTUAL VALUES
SETTINGS
 ).
SIGNAL SOURCES
6.3.3 SYNCHROCHECK
6.3.4 TRACKING FREQUENCY
 menu. Refer to the
POWER SYSTEM

SYS-
GE Multilin