Synchrocheck - GE L60 Instructions Manual

METERING
This menu displays metered values for current and power demand. The "SRC 1" text is replaced by the name programmed
by the user for the associated source (see
The relay measures (absolute values only) the source demand on each phase and average three phase demand for real,
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
 DEMAND
maximum demand since the last maximum demand reset, and the time and date stamp of this maximum demand value.
Maximum demand quantities can be reset to zero with the
6.4.2.8 Frequency metering
ACTUAL VALUES  METERING  SOURCE SRC 1  FREQUENCY
 FREQUENCY
 SRC 1
The metered frequency values are displayed in this menu. The "SRC 1" text is replaced by the name programmed by the
user for the associated source (see
SOURCE FREQUENCY
Clarke transformation of three-phase voltages or currents, auxiliary voltage, or ground current as per source configuration
(see the
SYSTEM SETUP  POWER SYSTEM
frequency measurement is passed through a validation filter that eliminates false readings due to signal distortions and
6
transients.

6.4.3 Synchrocheck

ACTUAL VALUES  METERING  SYNCHROCHECK  SYNCHROCHECK 1(4)
 SYNCHROCHECK 1

6-20
SRC 1 DMD VAR DATE:

2001/07/31 16:30:07
SRC 1 DMD VA:

0.000 VA
SRC 1 DMD VA MAX:

0.000 VA
SRC 1 DMD VA DATE:

2001/07/31 16:30:07
SETTINGS  SYSTEM SETUP  SIGNAL SOURCES
SRC 1 FREQUENCY:

0.00 Hz
SETTINGS  SYSTEM SETUP  SIGNAL SOURCES
is measured via software-implemented zero-crossing detection of an AC signal. The signal is either a
settings). The signal used for frequency estimation is low-pass filtered. The final
SYNCHROCHECK 1 DELTA

VOLT: 0.000 kV
SYNCHROCHECK 1 DELTA

FREQ:
SYNCHROCHECK 1

DELTA PHASE:
SYNCHROCHECK 1

SYNSCP D_PH: 0.0°
SYNCHROCHECK 1

V1 MAG: 0.000 kv
SYNCHROCHECK 1

V1 ANG: 0.0°
SYNCHROCHECK 1

V2 MAG: 0.000 kV
SYNCHROCHECK 1

V2 ANG: 0.0°
CLEAR RECORDS  CLEAR DEMAND RECORDS
0.00 Hz
0.0°
L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL
CHAPTER 6: ACTUAL VALUES
).
SETTINGS  PRODUCT SETUP
command.
).