Synchrocheck; Tracking Frequency; Flexelements - GE C60 Instruction Manual

6 ACTUAL VALUES
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 METERING
 SYNCHROCHECK 1

MESSAGE
MESSAGE
If a synchrocheck function setting is "Disabled", the corresponding actual values menu item is not displayed.

PATH: ACTUAL VALUES METERING
 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
System section of chapter 5 for details.

PATH: ACTUAL VALUES METERING
 FLEXELEMENT 1

The operating signals for the FlexElements are displayed in pu values using the following definitions of the base units.
Table 6–2: FLEXELEMENT BASE UNITS (Sheet 1 of 2)
BREAKER ACC ARCING AMPS
(Brk X Acc Arc Amp A, B, and C)
BREAKER ARCING AMPS
(Brk X Arc Amp A, B, and C)
DCmA
FAULT LOCATION
FREQUENCY
PHASE ANGLE
POWER FACTOR
RTDs
SOURCE CURRENT
GE Multilin
SETTINGS
settings). The signal used for frequency estimation is low-pass filtered. The
POWER SYSTEM
 

SYNCHROCHECK

SYNCHROCHECK 1 DELTA
VOLT: 0.000 V
SYNCHROCHECK 1 DELTA
PHASE: 0.0°
SYNCHROCHECK 1 DELTA
FREQ: 0.00 Hz


TRACKING FREQUENCY

TRACKING FREQUENCY:
60.00 Hz
setting in the
SETTINGS
 

FLEXELEMENTS

FLEXELEMENT 1
OpSig: 0.000 pu
2
× cycle
BASE = 2000 kA
2
× cycle
BASE = 1 kA
BASE = maximum value of the
under the +IN and –IN inputs.
BASE = Line Length as specified in Fault Report
f = 1 Hz
BASE
ϕ = 360 degrees (see the UR angle referencing convention)
BASE
PF = 1.00
BASE
BASE = 100°C
I = maximum nominal primary RMS value of the +IN and –IN inputs
BASE
C60 Breaker Protection System
 
SYSTEM SETUP SIGNAL SOURCES
SYNCHROCHECK 1(4)
 
SYSTEM SETUP POWER SYSTEM
FLEXELEMENT 1(8)
setting for the two transducers configured
DCMA INPUT MAX
6.3 METERING
).
6.3.3 SYNCHROCHECK
6.3.4 TRACKING FREQUENCY
menu. See the Power
6.3.5 FLEXELEMENTS
6-21
6