Synchrocheck - GE UR Series Instruction Manual
Line differential relay
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Also See for UR Series:
- Instruction manual (652 pages) ,
- Manual (433 pages) ,
- Release notes (33 pages)
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6 ACTUAL VALUES
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
„
FREQUENCY
„
SRC 1
A maximum of 6 identical Source menus are available, numbered from SRC 1 to SRC 6. "SRC 1" will be replaced by what-
ever name was programmed by the user for the associated source (see
).
SOURCES
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
ÖØ
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
ÖØ
(see
SETTINGS
SYSTEM SETUP
final frequency measurement is passed through a validation filter that eliminates false readings due to signal distortions and
transients.
ÖØ
PATH: ACTUAL VALUES
METERING
„
SYNCHROCHECK1
„
MESSAGE
MESSAGE
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.
GE Power Management
SRC 1
DMD W:
0.000
W
SRC 1
DMD W MAX:
0.000
W
SRC 1
DMD W DATE:
200/07/31 16:30:07
SRC 1
DMD VAR:
0.000
var
SRC 1
DMD VAR MAX:
0.000
var
SRC 1
DMD VAR DATE:
200/07/31 16:30:07
SRC 1
DMD VA:
0.000
VA
SRC 1
DMD VA MAX:
0.000
VA
SRC 1
DMD VA DATE:
200/07/31 16:30:07
SRC 1
FREQUENCY:
0.00 Hz
on each phase and average three phase demand for real,
SOURCE DEMAND
COMMANDS
ÖØ
). The signal used for frequency estimation is low-pass filtered. The
POWER SYSTEM
ÖØ
Ö
SYNCHROCHECK
SYNCHROCHECK 1
SYNCHROCHECK 1 DELTA
VOLT:
0.000 V
SYNCHROCHECK 1 DELTA
PHASE:
0.0°
SYNCHROCHECK 1 DELTA
FREQ:
0.00 Hz
L90 Line Differential Relay
ÖØ
SETTINGS
SYSTEM SETUP
SETTINGS
Ø
ÖØ
CLEAR RECORDS
CLEAR DEMAND RECORDS
6.3.4 SYNCHROCHECK
6.3 METERING
ÖØ
SIGNAL
6
Ø
PRODUCT SETUP
6-15
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