Tracking Frequency - GE C70 Instruction Manual

6.3 METERING
The magnitudes of the raw differential current and compensated operating currents (in per-units of the differential CT) are
displayed for each phase.
e) NEUTRAL CURRENT UNBALANCE
PATH: ACTUAL VALUES
 NEUTRAL CURRENT
 UNBALANCE 1
The magnitudes of the raw neutral split-phase current and compensated operating current (in per-units of the ground CT
input) are displayed in this menu.
PATH: ACTUAL VALUES
 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
Power System section of chapter 5 for additional details.
PATH: ACTUAL VALUES
 FLEXELEMENT 1

The operating signals for the FlexElements are displayed in pu values using the following definitions of the base units.
6
Table 6–2: FLEXELEMENT BASE UNITS
dcmA
FREQUENCY
PHASE ANGLE
POWER FACTOR
RTDs
SOURCE CURRENT
SOURCE POWER
SOURCE THD & HARMONICS
SOURCE VOLTAGE
6-20
 
METERING CAPACITOR BANK
Raw INsp: 0.0000 pu
Comp Iop: 0.0000 pu
 
METERING

TRACKING FREQUENCY

TRACKING FREQUENCY:
60.00 Hz
setting in the
SETTINGS
 
METERING FLEXELEMENTS
FLEXELEMENT 1
OpSig: 0.000 pu
BASE = maximum value of the
under the +IN and –IN inputs.
f = 1 Hz
BASE

= 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 = 1%
V = maximum nominal primary RMS value of the +IN and –IN inputs
BASE
C70 Capacitor Bank Protection and Control System
 
NEUTRAL CURRENT... NEUTRAL CURRENT UNBALANCE 1(3)
 
SYSTEM SETUP

FLEXELEMENT 1(16)
setting for the two transducers configured
DCMA INPUT MAX
 I
for the +IN and –IN inputs
BASE BASE
6 ACTUAL VALUES
6.3.5 TRACKING FREQUENCY
menu. Refer to the
POWER SYSTEM
6.3.6 FLEXELEMENTS™
GE Multilin