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:
• A
• B
• C
• NEGSEQ
• POSSEQ
• ZEROSEQ
• PhasorXUseFreqSrc: Enables/Disables the contribution of Phasor channel X
in automatic frequency source selection by choosing On/Off setting. Each
voltage-connected preprocessor block delivers the frequency data, derived
from the analog input AC voltage values, to the respective voltage phasor
channel. Every phasor channel has a user-settable parameter
(PhasorXUseFreqSrc) to be used as a source of frequency data for reporting to
the PDC client. It is very important to set this parameter to On for the voltage-
connected phasor channels. There is an automatic frequency source selection
logic to ensure an uninterrupted reporting of the system frequency to the PDC
client. More information is available under the section Frequency reporting.
3. ANALOGREPORT is the function block responsible for reporting the analog values.
Each instance of ANALOGREPORT function block has 24 analog channels with the
following setting parameters; where X is a number from 1 to 24:
• AnalogXRange: This parameter defines a range between -AnalogXRange and
+AnalogXRange for AnalogX value. The range will be used by the IED to apply
a proper scale factor to the AnalogX values when Integer format is used. It
refers to the 4-byte ANUNIT field of the configuration frames 1, 2 organization
and the 8-byte ANSCALE field of the configuration frame 3 organization
defined in IEEE C37.118.2 message format. The AnalogXRange value can be
a number between 3277.0 and 10000000000. This setting is only important if
the AnalogDataType setting is selected as Integer. More information is
available under the section
Scaling Factors for ANALOGREPORT channels.
• AnalogXUnitType: Unit type for analog signal X. It refers to the 4-byte
ANUNIT field of the configuration frames 1, 2 organization defined in IEEE
1MRK 506 369-UUS - Section 6
Wide area measurement system
Line distance protection REL670 2.2 ANSI 133
Application manual
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