ABB Relion RES670, Applications Manual

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different filtering applied to the 3PHSUM block, both SMAI reference block and
3PHSUM shall be connected to the same PHASORREPORT instance. In this
example (Figure
44 ), SMAI3 adapts its filtering according to PHASORREPORT1
instance 2 (due to connection) and 3PHSUM is adapting its filtering according to
PHASORREPORT1 instance 1. On the other hand, since 3PHSUM is set to receive
external DFT reference from SMAI3, therefore If settings for PHASORREPORT1
instances 1 and 2 above differ for SvcClass or ReportRate, then 3PHSUM block
will be affected by two different filtering at the same time which is not possible.
For example in Figure
44 , 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.
6.1.4 Setting guidelines
GUID-83969957-DABF-4B9B-95C7-B9F0AF6E647A v2
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
1MRK 511 407-UEN C
Section 6
Wide area measurement system
Phasor measurement unit RES670 2.2 IEC 101
Application manual