Flexelements™ - GE t60 Instruction Manual

6.3 METERING
PATH: ACTUAL VALUES
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
dcmA
FREQUENCY
PHASE ANGLE
POWER FACTOR
RTDs
SOURCE CURRENT
SOURCE ENERGY
(SRC X Positive and Negative
Watthours); (SRC X Positive and
Negative Varhours)
SOURCE POWER
SOURCE THD & HARMONICS
SOURCE VOLTAGE
VOLTS PER HERTZ
XFMR DIFFERENTIAL CURRENT
(Xfmr Iad, Ibd, and Icd Mag)
XFMR DIFFERENTIAL
HARMONIC CONTENT
6
(Xfmr Harm2 Iad, Ibd, and Icd Mag)
(Xfmr Harm5 Iad, Ibd, and Icd Mag)
XFMR RESTRAINING CURRENT
(Xfmr Iar, Ibr, and Icr Mag)
PATH: ACTUAL VALUES
VOLTS PER HERTZ 1
The V/Hz actual values are displayed in this menu.
PATH: ACTUAL VALUES
RESTRICTED
GROUND FAULT 1
The differential and restraint current values for the Restricted Ground Fault Element are displayed in this menu.
6-16
METERING FLEXELEMENTS
FLEXELEMENT 1
OpSig: 0.000 pu
BASE = maximum value of the
under the +IN and –IN inputs.
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
E = 10000 MWh or MVAh, respectively
BASE
P = maximum value of V
BASE
BASE = 100% of fundamental frequency component
V = maximum nominal primary RMS value of the +IN and –IN inputs
BASE
BASE = 1.00 pu
I = maximum primary RMS value of the +IN and -IN inputs
BASE
(CT primary for source currents, and transformer reference primary current for transformer
differential currents)
BASE = 100%
I = maximum primary RMS value of the +IN and -IN inputs
BASE
(CT primary for source currents, and transformer reference primary current for transformer
differential currents)
METERING VOLTS PER HERTZ 1(2)
VOLTS PER HERTZ 1:
0.000 pu
METERING RESTRICTED GROUND FAULT CURRENTS
RGF 1 DIFF
0.000 A
RGF 1 RESTR Igr:
MESSAGE
0.000 A
T60 Transformer Management Relay
FLEXELEMENT 1(16)
setting for the two transducers configured
DCMA INPUT MAX
× I
for the +IN and –IN inputs
BASE BASE
6.3.7 RESTRICTED GROUND FAULT
RESTRICTED GROUND FAULT 1(4)
Igd:
6 ACTUAL VALUES
6.3.5 FLEXELEMENTS™
6.3.6 VOLTS PER HERTZ
GE Multilin