ABB Relion REG670, Applications Manual

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• SendFreqInfo : Enables/Disables sending of the frequency-deviation and
Rate Of Change Of Frequency (ROCOF) data by choosing On / Off setting.
• ReportRate : It refers to the 2-byte DATA_RATE field of the configuration
frames 1, 2 and 3 organization defined in IEEE C37.118.2 message format.
The DATA_RATE field is identifying the Rate of phasor data
transmissions by a 2-byte integer word (–32 767 to +32 767). Here the user
can select the synchrophasor data reporting rate from the PMU based on the
number of frames per second.
In general, the IED has 5 different reporting rates (10, 25, 50, 100, 200 fr/
s) on the 50 Hz system frequency, and has 8 different reporting rates (10, 12,
15, 20, 30, 60, 120, 240 fr/s) on the 60 Hz system frequency. The options are
as follows:
•
10/10 fr/s (60/50Hz)
• 12/10 fr/s (60/50Hz)
• 15/10 fr/s (60/50Hz)
• 20/25 fr/s (60/50Hz)
• 30/25 fr/s (60/50Hz)
• 60/50 fr/s (60/50Hz)
• 120/100 fr/s (60/50Hz)
• 240/200 fr/s (60/50Hz)
The first number is identifying the reporting rate in a 60Hz system, and the
second number is the reporting rate in a 50Hz system. For example, if the
selected setting is
15/10 fr/s (60/50Hz) , this means that the synchrophasor
data reporting rate would be 15 frames per second if the system frequency
is 60Hz. Likewise, if the system frequency is 50Hz, the selected rate is
equal to 10 frames per second.
• RptTimetag : It refers to the method of time-tagging used in the IED which
is related to the phasor estimation and filtering technique. The options are
FirstSample , MiddleSample and LastSample . The time-stamp of the PMU
output represents the phasor equivalent, frequency, and ROCOF of the
power system signal at the time it is applied to the PMU input. All of these
estimates must be compensated for PMU processing delays including
analog input filtering, sampling, and estimation group delay. If the sample
time tags are compensated for all input delays, the time tag of the sample in
the middle of the estimation window can be used for the phasor estimation
(output) time tag as long as the filtering coefficients are symmetrical across
the filtering window.
Note: It is recommended to set this parameter on MiddleSample .
2. PHASORREPORT is the function block responsible for reporting the
synchrophasors. Each instance of PMUREPORT function block has 32 phasor
channels with the following setting parameters; where X is a number from 1 to 32:
•
PhasorXReport : Enables/Disables the phasor channel X (reporting of
PhasorX) by choosing On / Off setting.
• PhasorX : The group selector for PhasorX. Here, the user can select the type
of reported synchrophasor from the phasor channel X as either a 3-phase
symmetrical component or a single-phase phasor. The options are as
follows:
Section 6
1MRK 502 071-UEN -
Wide area measurement system
124 Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
Application manual