ABB Relion 670 Series Applications Manual page 93

1MRK 511 407-UUS Rev. J
IEC140000120 V2 EN-US
Figure 34: Multiple instances of ANALOGREPORT blocks
Figure 35
in the bottom of each function block. For each instance, there are three separate BINARYREPORT
blocks capable of reporting up to 24 Binary signals (8 Binary signals in each BINARYREPORT block).
These binary signals can be for example dis-connector or breaker position indications or internal/
external protection alarm signals.
IEC140000121 V2 EN-US
Figure 35: Multiple instances of BINARYREPORT blocks
6.1.3 Operation principle
The Phasor Measurement Unit (PMU) features three main functional principles:
• To measure the power system related AC quantities (voltage, current) and to calculate the
phasor representation of these quantities.
• To synchronize the calculated phasors with the UTC by time-tagging, in order to make
synchrophasors (time is reference).
• To publish all phasor-related data by means of TCP/IP or UDP/IP, following the standard IEEE
C37.118 protocol.
The C37.118 standard imposes requirements on the devices and describes the communication
message structure and data. The PMU complies with all the standard requirements with a specific
attention to the Total Vector Error (TVE) requirement. The TVE is calculated using the following
equation:
Phasor measurement unit RES670
Application manual
shows both instances of BINARYREPORT function blocks. The instance number is visible
© Copyright 2017 Hitachi Power Grids. All rights reserved
Wide area measurement system
IEC140000120-2-en.vsd
IEC140000121-2-en.vsd
GUID-EB2B9096-2F9D-4264-B2D2-8D9DC65697E8 v3
Section 6
87