Sensitive Directional Power; Synchrocheck; Tracking Frequency; Frequency Rate Of Change - GE UR Series L90 Instruction Manual

Line current differential system
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6 ACTUAL VALUES

PATH: ACTUAL VALUES
METERING
 SENSITIVE
 DIRECTIONAL POWER
MESSAGE
The effective operating quantities of the sensitive directional power elements are displayed here. The display may be useful
to calibrate the feature by compensating the angular errors of the CTs and VTs with the use of the
settings.

PATH: ACTUAL VALUES
METERING
 SYNCHROCHECK 1
MESSAGE
MESSAGE
The actual values menu for synchrocheck 2 is identical to that of synchrocheck 1. If a synchrocheck function setting is "Dis-
abled", the corresponding actual values menu item will not be displayed.

PATH: ACTUAL VALUES
METERING
 TRACKING FREQUENCY
The tracking frequency is displayed here. The frequency is tracked based on configuration of the reference source. The
is based upon positive sequence current phasors from all line terminals and is synchronously

TRACKING FREQUENCY

adjusted at all terminals. If currents are below 0.125 pu, then the

PATH: ACTUAL VALUES
METERING
 FREQUENCY RATE
 OF CHANGE
MESSAGE
MESSAGE
MESSAGE
The metered frequency rate of change for the frequency rate of change elements is shown here.
GE Multilin


SENSITIVE DIRECTIONAL POWER

DIRECTIONAL POWER 1
3: 0.000 W
DIRECTIONAL POWER 2
3: 0.000 W


SYNCHROCHECK

SYNCHROCHECK 1(2)
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
NOMINAL FREQUENCY


FREQUENCY RATE OF CHANGE

FREQUENCY RATE OF
CHANGE 1: 0.00 Hz/s
FREQUENCY RATE OF
CHANGE 2: 0.00 Hz/s
FREQUENCY RATE OF
CHANGE 3: 0.00 Hz/s
FREQUENCY RATE OF
CHANGE 4: 0.00 Hz/s
L90 Line Current Differential System
6.3 METERING
6.3.4 SENSITIVE DIRECTIONAL POWER
and
RCA
6.3.5 SYNCHROCHECK
6.3.6 TRACKING FREQUENCY
is used.
6.3.7 FREQUENCY RATE OF CHANGE
CALIBRATION
6
6-21

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