IEC 61869-9:2016

Instrument transformers - Part 9: Digital interface for instrument transformers

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.

Transformateurs de mesure - Partie 9: Interface numérique des transformateurs de mesure

L'IEC 61869-9:2016 est une norme de familles de produits applicable aux transformateurs de mesure à sortie numérique. La norme de produit est composée de l'IEC 61869 1 et de l'IEC 61869 6, en plus de la présente norme et des normes spécifiques aux produits correspondants dans la série IEC 61869 (Partie 7, Partie 8, Partie 12, Partie 13, Partie 14 et Partie 15). La présente norme définit les exigences en matière de communication numérique des mesurages de transformateurs de mesure. Elle repose sur la série IEC 61850, sur le document Implementation guideline for digital interface to instrument transformers using IEC 61850-9-2 de l’UCA International Users Group et sur les parties correspondantes de l'IEC 60044-8 qui sont remplacées par la présente norme. Elle inclut des améliorations supplémentaires, notamment la synchronisation basée sur le réseau de l'IEC 61588. Cette première édition remplace les exigences spécifiques correspondantes de l'IEC 60044-8, parue en 2002. La présente Norme internationale contient les exigences spécifiques relatives aux transformateurs de mesure électroniques de faible puissance (LPIT) équipés d’une sortie numérique. La présente publication contient un fichier joint sous la forme de fichier .xml. Ce fichier est destiné à être utilisé en complément de la présente publication et n’en fait pas partie intégrante.

General Information

• Status: Published
• Publication Date: 26-Apr-2016
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 17.220.20 - Measurement of electrical and magnetic quantities
• Technical Committee: TC 38 - Instrument Transformers
• Drafting Committee: WG 37 - TC 38/WG 37
• Current Stage: PPUB - Publication issued
• Start Date: 31-May-2016
• Completion Date: 27-Apr-2016

Standards Content (Sample)

IEC 61869-9 ®
Edition 1.0 2016-04
INTERNATIONAL
STANDARD
colour
inside
Instrument transformers –
Part 9: Digital interface for instrument transformers

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IEC 61869-9 ®
Edition 1.0 2016-04
INTERNATIONAL
STANDARD
colour
inside
Instrument transformers –
Part 9: Digital interface for instrument transformers

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 17.220.20 ISBN 978-2-8322-3331-3

– 2 – IEC 61869-9:2016  IEC 2016
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 12
2 Normative references . 12
3 Terms and definitions . 13
3.5 Terms and definitions related to other ratings . 13
3.7 Index of abbreviations . 13
4 Normal and special service conditions . 14
5 Ratings . 14
5.6 Rated accuracy class . 14
5.901 Performance requirements . 15
6 Design and construction . 16
6.901 Technological boundaries . 16
6.901.1 Interface point . 16
6.901.2 Digital output interface . 16
6.901.3 Human-machine interface . 16
6.902 Electrical requirements . 17
6.902.1 Frequency response requirements . 17
6.902.2 Maximum processing delay time requirement . 17
6.903 Specification of the communications profile . 19
6.903.1 General . 19
6.903.2 Variants . 19
6.903.3 Digital output sample rates . 20
6.903.4 Logical devices . 21
6.903.5 Logical nodes LPHD . 21
6.903.6 Logical nodes LLN0 . 21
6.903.7 Logical nodes TCTR . 21
6.903.8 Logical nodes TVTR . 24
6.903.9 Quality . 25
6.903.10 Dataset(s) . 26
6.903.11 Multicast sampled value control block(s) . 27
6.903.12 Configuration of the merging unit . 27
6.903.13 Rated conformance classes . 28
6.904 Synchronization . 34
6.904.1 General . 34
6.904.2 Precision time protocol synchronization . 34
6.904.3 1PPS synchronization . 35
6.904.4 Sample value message SmpSynch attribute . 35
6.904.5 Holdover mode . 36
6.904.6 Free-running mode . 37
6.904.7 Time adjustments . 37
7 Tests . 38
7.2 Type tests . 38
7.2.6 Test for accuracy . 38
7.2.901 Digital output conformance tests . 38
7.2.902 Maximum processing delay time test . 38

7.2.903 Loss of synchronization tests . 39
7.2.904 1PPS test . 39
Annex 9A (informative) Dynamic range considerations . 40
Annex 9B (informative) Time synchronization and management example . 43
Annex 9C (informative) Example merging unit ICD file . 45
Annex 9D (informative) Test circuits for accuracy measurement . 56
Annex 9E (informative) Electronic nameplate . 59
Bibliography . 60

Figure 901 – General block diagram of an electronic LPIT with digital output . 8
Figure 902 – General illustration of the objects within a merging unit (example) . 9
Figure 903 – Electronic LPIT with digital output (concept example) . 10
Figure 904 – Standalone merging unit . 11
Figure 905 – Duplex LC connector . 16
Figure 906 – Maximum processing delay time . 17
Figure 907 – Output message timestamp point . 19
Figure 908 – TCTR naming example . 23
Figure 909 – 1PPS signal waveform at the merging unit clock input . 35
Figure 910 – Time adjustment example (6 ASDU example) . 37
Figure 9A.1 – Nomogram for current . 41
Figure 9A.2 – Nomogram for voltage . 42
Figure 9B.1 – Sampled value signal processing example showing 2ASDUs per
message (F4800S2I4U4 example) . 43
Figure 9D.1 – Example test circuit . 56
Figure 9D.2 – Example test circuit . 58

Table 901 – Maximum processing delay time limits . 18
Table 902 – Standard sample rates . 20
Table 903 – Extensions to the LPHD class . 21
Table 904 – AmpSv object attribute values . 23
Table 905 – Extensions to the TCTR class . 24
Table 906 – VolSv object attribute values . 25
Table 907 – Extensions to the TVTR class . 25
Table 908 – Configuration parameters of the merging unit . 28
Table 909 – Basic conformance statement . 29
Table 910 – ACSI models conformance statement . 29
Table 911 – ACSI service conformance statement . 31
Table 912 – PICS for A-Profile support . 33
Table 913 – PICS for T-Profile support . 34

– 4 – IEC 61869-9:2016  IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INSTRUMENT TRANSFORMERS –
Part 9: Digital interface for instrument transformers

FOREWORD
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