GE G60 UR Series, Инструкция по эксплуатации

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GE Multilin G60 Generator Protection System 6-19
6 ACTUAL VALUES 6.3 METERING
6
6.3.6 FREQUENCY RATE OF CHANGE
PATH: ACTUAL VALUES
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METERING
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FREQUENCY RATE OF CHANGE
The metered frequency rate of change for the frequency rate of change elements is shown here.
6.3.7 FREQUENCY OUT-OF-BAND ACCUMULATION
PATH: ACTUAL VALUES
ÖØ
METERING
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FREQUENCY OOB ACCUMULATION
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%.
6.3.8 FLEXELEMENTS™
PATH: ACTUAL VALUES
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METERING
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FLEXELEMENTS
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FLEXELEMENT 1(16)
The operating signals for the FlexElements™ are displayed in pu values using the following definitions of the base units.
„
FREQUENCY RATE
„
OF CHANGE
FREQUENCY RATE OF
CHANGE 1: 0.00 Hz/s
MESSAGE
FREQUENCY RATE OF
CHANGE 2: 0.00 Hz/s
MESSAGE
FREQUENCY RATE OF
CHANGE 3: 0.00 Hz/s
MESSAGE
FREQUENCY RATE OF
CHANGE 4: 0.00 Hz/s
„
FREQUENCY OOB
„
ACCUMULATION
FREQUENCY OOB BAND 1
ACCUMULATION: 0.0%
MESSAGE
FREQUENCY OOB BAND 2
ACCUMULATION: 0.0%
↓
MESSAGE
FREQUENCY OOB BAND 7
ACCUMULATION: 0.0%
„
FLEXELEMENT 1
„
FLEXELEMENT 1
OpSig: 0.000 pu
Table 6–2: FLEXELEMENT™ BASE UNITS (Sheet 1 of 2)
dcmA BASE = maximum value of the DCMA INPUT MAX setting for the two transducers configured
under the +IN and –IN inputs.
FREQUENCY f
BASE
= 1 Hz
FREQUENCY RATE OF CHANGE df/dt
BASE
= 1 Hz/s
PHASE ANGLE
ϕ
BASE
= 360 degrees (see the UR angle referencing convention)
POWER FACTOR PF
BASE
= 1.00
RTDs BASE = 100°C
SENSITIVE DIR POWER
(Sns Dir Power) P
BASE
= maximum value of 3
×
V
BASE
×
I
BASE
for the +IN and –IN inputs of the sources
configured for the sensitive power directional element(s).
SOURCE CURRENT I
BASE
= maximum nominal primary RMS value of the +IN and –IN inputs
SOURCE ENERGY
(SRC X Positive and Negative
Watthours); (SRC X Positive and
Negative Varhours) E
BASE
= 10000 MWh or MVAh, respectively