Flexelements - GE G60 Instruction Manual

6 ACTUAL VALUES
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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
DCmA
FIELD CURRENT
FIELD GROUND CURRENT
FIELD GROUND FAULT
LOCATION
FIELD GROUND INJECTED
VOLTAGE
FIELD GROUND RESISTANCE
FIELD VOLTAGE
FREQUENCY
FREQUENCY RATE OF CHANGE
PHASE ANGLE
POWER FACTOR
RTDs
SENSITIVE DIR POWER
(Sns Dir Power)
SOURCE CURRENT
SOURCE ENERGY
(Positive and Negative Watthours,
Positive and Negative Varhours)
SOURCE POWER
SOURCE VOLTAGE
STATOR DIFFERENTIAL
CURRENT
(Stator Diff Iar, Ibr, and Icr)
STATOR GROUND 3RD
HARMONIC VOLTAGES
(Stator Gnd Vn/V0 3rd)
STATOR GROUND RESISTANCE
STATOR GROUND SUB-
HARMONIC VOLTAGE
STATOR GROUND SUB-
HARMONIC CURRENT
STATOR RESTRAINING
CURRENT
(Stator Diff Iad, Ibd, and Icd)
SYNCHROCHECK
(Max Delta Volts)
VOLTS PER HERTZ
GE Multilin
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FLEXELEMENTS

FLEXELEMENT 1(16)
FLEXELEMENT 1
OpSig: 0.000 pu
BASE = maximum value of the
DCMA INPUT MAX
under the +IN and –IN inputs.
I = maximum value setting defined for the specific transducer input configured
BASE
I = 5 mA
BASE
BASE = 100%
V = 15 V
BASE
R = 250 KΩ
BASE
V = 500 V
BASE
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
= maximum value of 3 × V
P
BASE
configured for the sensitive power directional element(s).
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
V = maximum nominal primary RMS value of the +IN and –IN inputs
BASE
I = maximum primary RMS value of the +IN and –IN inputs
BASE
(CT primary for source currents, and bus reference primary current for bus differential currents)
V = Primary auxiliary voltage of the
BASE
R = 10 KΩ
BASE
V = nominal secondary voltage of auxiliary VT for the stator ground source
BASE
I = ground CT primary current of stator ground source
BASE
I = maximum primary RMS value of the +IN and –IN inputs
BASE
(CT primary for source currents, and bus reference primary current for bus differential currents)
V = maximum primary RMS value of all the sources related to the +IN and –IN inputs
BASE
BASE = 1.00 pu
G60 Generator Protection System
setting for the two transducers configured
× I
for the +IN and –IN inputs of the sources
BASE BASE
× I for the +IN and –IN inputs
BASE
STATOR GROUND SOURCE
6.3 METERING
6.3.8 FLEXELEMENTS™
6-23
6