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BS EN IEC 61869-9:2019

$198.66

Instrument transformers – Digital interface for instrument transformers

Published By Publication Date Number of Pages
BSI 2019 66
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IEC 61869-9:2016 is a product family standard applicable to instrument transformers with digital output. The product standard is composed of IEC 61869-1 and IEC 61869-6, in addition to this standard and the relevant product specific standards in the IEC 61869 series (Part 7, Part 8, Part 12, Part 13, Part 14, and Part 15). This standard defines requirements for digital communications of instrument transformer measurements. It is based on the IEC 61850 series, UCA international users group document Implementation guideline for digital interface to instrument transformers using IEC 61850-9-2, and the relevant parts of IEC 60044-8 that are replaced by this standard. It includes additional improvements including the IEC 61588 network based time synchronization. This first edition replaces the corresponding specific requirements previously contained in IEC 60044-8, published in 2002. This International Standard contains specific requirements for electronic low power instrument transformers (LPIT) having a digital output. However, the reader is encouraged to use its most recent edition. This publication contains an attached file in the form of a .xml file. This file is intended to be used as a complement and does not form an integral part of the publication.

PDF Catalog

PDF Pages PDF Title
2 National foreword
7 CONTENTS
9 FOREWORD
12 INTRODUCTION
13 Figures
Figure 901 – General block diagram of an electronic LPIT with digital output
14 Figure 902 – General illustration of the objects within a merging unit (example)
15 Figure 903 – Electronic LPIT with digital output (concept example)
16 Figure 904 – Standalone merging unit
17 1 Scope
2 Normative references
18 3 Terms and definitions
3.5 Terms and definitions related to other ratings
3.7 Index of abbreviations
19 4 Normal and special service conditions
5 Ratings
5.6 Rated accuracy class
20 5.901 Performance requirements
21 6 Design and construction
6.901 Technological boundaries
6.901.1 Interface point
6.901.2 Digital output interface
6.901.3 Human-machine interface
Figure 905 – Duplex LC connector
22 6.902 Electrical requirements
6.902.1 Frequency response requirements
6.902.2 Maximum processing delay time requirement
Figure 906 – Maximum processing delay time
23 Tables
Table 901 – Maximum processing delay time limits
24 6.903 Specification of the communications profile
6.903.1 General
6.903.2 Variants
Figure 907 – Output message timestamp point
25 6.903.3 Digital output sample rates
Table 902 – Standard sample rates
26 6.903.4 Logical devices
6.903.5 Logical nodes LPHD
6.903.6 Logical nodes LLN0
6.903.7 Logical nodes TCTR
Table 903 – Extensions to the LPHD class
28 Figure 908 – TCTR naming example
Table 904 – AmpSv object attribute values
29 6.903.8 Logical nodes TVTR
Table 905 – Extensions to the TCTR class
30 6.903.9 Quality
Table 906 – VolSv object attribute values
Table 907 – Extensions to the TVTR class
31 6.903.10 Dataset(s)
32 6.903.11 Multicast sampled value control block(s)
6.903.12 Configuration of the merging unit
33 6.903.13 Rated conformance classes
Table 908 – Configuration parameters of the merging unit
34 Table 909 – Basic conformance statement
Table 910 – ACSI models conformance statement
36 Table 911 – ACSI service conformance statement
38 Table 912 – PICS for A-Profile support
39 6.904 Synchronization
6.904.1 General
6.904.2 Precision time protocol synchronization
Table 913 – PICS for T-Profile support
40 6.904.3 1PPS synchronization
6.904.4 Sample value message SmpSynch attribute
Figure 909 – 1PPS signal waveform at the merging unit clock input
41 6.904.5 Holdover mode
42 6.904.6 Free-running mode
6.904.7 Time adjustments
Figure 910 – Time adjustment example (6 ASDU example)
43 7 Tests
7.2 Type tests
7.2.6 Test for accuracy
7.2.901 Digital output conformance tests
7.2.902 Maximum processing delay time test
44 7.2.903 Loss of synchronization tests
7.2.904 1PPS test
45 Annex 9A(informative)Dynamic range considerations
46 Figure 9A.1 – Nomogram for current
47 Figure 9A.2 – Nomogram for voltage
48 Annex 9B(informative)Time synchronization and management example
Figure 9B.1 – Sampled value signal processing example showing 2ASDUsper message (F4800S2I4U4 example)
50 Annex 9C(informative)Example merging unit ICD file
61 Annex 9D(informative)Test circuits for accuracy measurement
Figure 9D.1 – Example test circuit
63 Figure 9D.2 – Example test circuit
64 Annex 9E(informative)Electronic nameplate
65 Bibliography
BS EN IEC 61869-9:2019
$198.66