Synchrocheck; Tracking Frequency - GE G60 Instruction Manual

6.3 METERING
g) ENERGY METERING
PATH: ACTUAL VALUES
ENERGY
SRC 1
6
The metered values for real and reactive energy 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
Because energy values are accumulated, these values should be recorded and then reset immediately prior to changing
CT or VT characteristics.
h) 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

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
METERING SOURCE SRC 1
SRC 1 POS WATTHOUR:
0.000 Wh
SRC 1 NEG WATTHOUR:
MESSAGE
0.000 Wh
SRC 1 POS VARHOUR:
MESSAGE
0.000 varh
SRC 1 NEG VARHOUR:
MESSAGE
0.000 varh
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: 0.00 Hz
METERING TRACKING FREQUENCY
TRACKING FREQUENCY:
60.00 Hz
setting in the
SETTINGS
G60 Generator Management Relay
ENERGY
SETTINGS
FREQUENCY
SETTINGS SYSTEM SETUP
SYNCHROCHECK 1(2)
0.0°
SYSTEM SETUP
6 ACTUAL VALUES
SYSTEM SETUP SIGNAL SOURCES
).
SIGNAL SOURCES
6.3.4 SYNCHROCHECK
6.3.5 TRACKING FREQUENCY
menu. Refer to the
POWER SYSTEM
GE Multilin
).