Frequency Out-Of-Band Accumulation; Flexelements - GE G30 Instruction Manual

6 ACTUAL VALUES

PATH: ACTUAL VALUES METERING
 FREQUENCY OOB
 ACCUMULATION
MESSAGE
MESSAGE
The frequency out-of-band accumulation metered values are displayed to the nearest percent as a ratio of the present
accumulation to the user-specified limit. Note that this value can be greater than 100%.

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
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
SYNCHROCHECK
(Max Delta Volts)
VOLTS PER HERTZ
XFMR DIFFERENTIAL CURRENT
(Xfmr Iad, Ibd, and Icd Mag)
XFMR DIFFERENTIAL
HARMONIC CONTENT
(Xfmr Harm2 Iad, Ibd, and Icd Mag)
(Xfmr Harm5 Iad, Ibd, and Icd Mag)
XFMR RESTRAINING CURRENT
(Xfmr Iar, Ibr, and Icr Mag)
GE Multilin

FREQUENCY OOB ACCUMULATION
FREQUENCY OOB BAND 1
ACCUMULATION: 0.0%
FREQUENCY OOB BAND 2
ACCUMULATION: 0.0%
↓
FREQUENCY OOB BAND 7
ACCUMULATION: 0.0%
 

FLEXELEMENTS

FLEXELEMENT 1(16)
FLEXELEMENT 1
OpSig: 0.000 pu
BASE = maximum value of the
DCMA INPUT MAX
under the +IN and –IN inputs.
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
V = maximum primary RMS value of all the sources related to 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)
G30 Generator Protection System

6.3.7 FREQUENCY OUT-OF-BAND ACCUMULATION

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
6.3 METERING
6.3.8 FLEXELEMENTS
6
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