METERING
If synchrocheck or a setting is "Disabled," the corresponding actual values menu item does not display.
6.4.4 Tracking frequency
ACTUAL VALUES METERING TRACKING FREQUENCY
TRACKING FREQUENCY
The tracking frequency displays 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.
6.4.5 Frequency rate of change
ACTUAL VALUES METERING FREQUENCY RATE OF CHANGE 1(2)
FREQUENCY RATE
OF CHANGE 1
The metered frequency rate of change for the frequency rate of change elements is shown here.
6.4.6 FlexElements
6
ACTUAL VALUES METERING FLEXELEMENTS FLEXELEMENT 1(8)
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
Base unit
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
FREQUENCY RATE OF CHANGE
PHASE ANGLE
POWER FACTOR
RTDs
SOURCE CURRENT
SOURCE POWER
SOURCE VOLTAGE
6-20
SYNCHROCHECK 1 PROJ
V2 ANG: 0.0°
SYNCHROCHECK 1 PROJ
DELTA_PHASE: 0.0°
SYNCHROCHECK 1 PROJ
SYNSCP D_PH: 0.0°
TRACKING FREQUENCY:
60.00 Hz
setting in the
SETTINGS SYSTEM SETUP POWER SYSTEM
FREQUENCY RATE OF
CHANGE1: 0.00 Hz/s
FLEXELEMENT 1
OpSig:
0.000
Description
2
BASE = 2000 kA
× cycle
2
BASE = 1 kA
× cycle
BASE = maximum value of the DCMA INPUT MAX setting for the two transducers configured
under the +IN and –IN inputs.
BASE = Line Length as specified in Fault Report
f
= 1 Hz
BASE
df/dt
= 1 Hz/s
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
P
= maximum value of V
BASE
BASE
V
= maximum nominal primary RMS value of the +IN and –IN inputs
BASE
× I
for the +IN and –IN inputs
BASE
D30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 6: ACTUAL VALUES
menu. See the Power