ABB Relion 670 Series Applications Manual page 115

1MRK 511 401-UUS F
ReportRate, then 3PHSUM block will be affected by two different filtering at the same time which
is not possible. For example in Figure 47, PHASOR2 from PHASORREPORT1 instance 1 may not be
fully compliant with IEEE C37.118 standard.
Note: If the SMAI reference block is not connected to any PHASORREPORT block, then 3PHSUM
block can be freely connected to any PHASORREPORT block regardless of its DFT reference
setting.
Note: If more 3PHSUM blocks need to be used, all 3PHSUM blocks (using external DFT ref) have to
be connected to the same instance of PHASORREPORT blocks (PHASOR1-32 of Instance number 1
or 2).
Note: If settings SvcClass and ReportRate are the same for different instances of PHASORREPORT
blocks, then 3PHSUM block can be freely connected to any of them regardless of 3PHSUM block
DFT reference setting or the reference SMAI block connection.
Note: Violation of rules 2 or 3 results in non-compliancy with IEEE C37.118 standard for some of the
synchrophasors. In case of rule 2 violation, the non-compliancy only applies to synchrophasors
from instance 2 and the synchrophasors from instance 1 will be still compliant. The non-
compliancy with the standard may be quite obvious as in case of rule 2 violation with different
SvcClass settings. This produces big angle error. On the other hand, it may be difficult to detect
the non-compliancy with the standard if rule 2 is violated with different ReportRates, or if rule 3 is
violated. In such cases, the synchrophasors may only fail to comply (with small error) in some
particular test case(s).
For more information regarding 3PHSUM block application, please refer to the Application Manual
under section Basic IED functions.
6.2.4 Setting guidelines
Based on the functionality and appearance in PCM600, the PMU reporting functionality is
categorized into 4 different categories (function block) as follows:
1. PMUREPORT
2. PHASORREPORT
3. ANALOGREPORT
4. BINARYREPORT
Each category has its corresponding parameter settings except for BINARYREPORT function block
which does not have any specific parameters and settings.
1. PMUREPORT is the main function block which controls the operation of other PMU reporting
function blocks. Each instance of PMUREPORT function block has the following parameters:
•
•
Bay control REC670
Application manual
Operation : Enables/Disables the operation of the corresponding instance of PMU
reporting functionality by choosing
SvcClass : It refers to the 1-byte SVC_CLASS field of the configuration frame 3 (CFG-3)
organization defined in IEEE C37.118.2 message format. Here the user can select the
performance class (service class) used for synchrophasor data measurement according
to IEEE C37.118.1 standard. The options are
Note: There are 2 PMUREPORT instances available (PMUREPORT:1 and PMUREPORT:2)
corresponding to 2 independent data streams. The user can set different or identical
service class for each data stream. In case of different service classes, special rules shall
be considered in PCM600 ACT for the connection of preprocessor blocks (SMAI) and
3PHSUM blocks to PHASORREPORT blocks. More details are available under section
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On / Off setting.
P class or M class .
Section 6
Wide area measurement system
GUID-83969957-DABF-4B9B-95C7-B9F0AF6E647A v2
PMU
109