Synchrocheck - GE C60 Instruction Manual

6.3 METERING
# FREQUENCY
# SRC 1
A maximum of 4 identical Source menus are available, numbered from SRC 1 to SRC 4. "SRC 1" will be replaced by what-
ever name was programmed by the user for the associated source (see
).
SOURCES
6
The relay measures (absolute values only)
reactive, and apparent power. These parameters can be monitored to reduce supplier demand penalties or for statistical
metering purposes. Demand calculations are based on the measurement type selected in the
!" menu. For each quantity, the relay displays the demand over the most recent demand time interval, the maxi-
DEMAND
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
command.
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
!"
SETTINGS SYSTEM SETUP
final frequency measurement is passed through a validation filter that eliminates false readings due to signal distortions and
transients.
PATH: ACTUAL VALUES

# SYNCHROCHECK1

#
The Actual Values menu for SYNCHROCHECK2 is identical to that of SYNCHROCHECK1. If a Synchrocheck Function
setting is set to "Disabled", the corresponding Actual Values menu item will not be displayed.
6-12
SRC 1 DMD W:
MESSAGE
0.000
SRC 1 DMD W MAX:
MESSAGE
0.000
SRC 1 DMD W DATE:
MESSAGE
200/07/31 16:30:07
SRC 1 DMD VAR:
MESSAGE
0.000
SRC 1 DMD VAR MAX:
MESSAGE
0.000
SRC 1 DMD VAR DATE:
MESSAGE
200/07/31 16:30:07
SRC 1 DMD VA:
MESSAGE
0.000
SRC 1 DMD VA MAX:
MESSAGE
0.000
SRC 1 DMD VA DATE:
MESSAGE
200/07/31 16:30:07
SRC 1 FREQUENCY:
0.00 Hz
SOURCE DEMAND
!"
POWER SYSTEM
!" !"
METERING SYNCHROCHECK
SYNCHROCHECK 1 DELTA
VOLT: 0.000 V
SYNCHROCHECK 1 DELTA
MESSAGE
PHASE:
SYNCHROCHECK 1 DELTA
MESSAGE
FREQ:
C60 Breaker Management Relay
W
W
var
var
VA
VA
SETTINGS
on each phase and average three phase demand for real,
"
COMMANDS CLEAR RECORDS
). The signal used for frequency estimation is low-pass filtered. The
!
SYNCHROCHECK 1
0.0°
0.00 Hz
6 ACTUAL VALUES
!" !"
SYSTEM SETUP SIGNAL
"
SETTINGS PRODUCT SETUP
!"
CLEAR DEMAND RECORDS
6.3.3 SYNCHROCHECK
GE Multilin