IEC TR 61869-100:2017
Current
The latest, up-to-date edition.
Instrument transformers - Part 100: Guidance for application of current transformers in power system protection
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
English
20-01-2017
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions and abbreviations
4 Responsibilities in the current transformer design
process
5 Basic theoretical equations for transient designing
6 Duty cycles
7 Determination of the transient dimensioning factor
K[td] by numerical calculation
8 Core saturation and remanence
9 Practical recommendations
10 Relations between the various types of classes
11 Protection functions and correct CT specification
Annex A (informative) - Duty cycle C - O software code
Annex B (informative) - Software code for numerical
calculation of K[td]
Bibliography
IEC TR 61869-100:2017(E) is applicable to inductive protective current transformers meeting the requirements of the IEC 61869-2 standard.
It may help relay manufacturers, CT manufacturers and project engineers to understand how a CT responds to simplified or standardized short circuit signals. Therefore, it supplies advanced information to comprehend the definition of inductive current transformers as well as their requirements.
The document aims to provide information for the casual user as well as for the specialist. Where necessary, the level of abstraction is mentioned in the document. It also discusses the question about the responsibilities in the design process for current transformers.
The contents of the corrigendum of October 2023 have been included in this copy.
Committee |
TC 38
|
DevelopmentNote |
Stability Date: 2019. (01/2017)
|
DocumentType |
Technical Report
|
Pages |
135
|
PublisherName |
International Electrotechnical Committee
|
Status |
Current
|
Standards | Relationship |
DS IEC/TR 61869-100 : 2017 | Identical |
PD IEC/TR 61869-100:2017 | Identical |
BS EN 50528:2010 | Identical |
VDE 0414-9-100 : 2018 | Identical |
DIN IEC/TR 61869-100 : 2018 | Identical |
EN 50152-3-2:2016 | Railway applications - Fixed installations - Particular requirements for a.c. switchgear - Part 3-2: Measurement, control and protection devices for specific use in a.c. traction systems - Current transformers |
I.S. EN 50152-3-2:2016 | RAILWAY APPLICATIONS - FIXED INSTALLATIONS - PARTICULAR REQUIREMENTS FOR A.C. SWITCHGEAR - PART 3-2: MEASUREMENT, CONTROL AND PROTECTION DEVICES FOR SPECIFIC USE IN A.C. TRACTION SYSTEMS - SINGLE-PHASE CURRENT TRANSFORMERS |
UNE-EN 50152-3-2:2016 | Railway applications - Fixed installations - Particular requirements for a.c. switchgear - Part 3-2: Measurement, control and protection devices for specific use in a.c. traction systems - Current transformers |
IEC 61869-2:2012 | Instrument transformers - Part 2: Additional requirements for current transformers |
IEC 60617-3:1996 | Graphical symbols for diagrams - Part 3: Conductors and connecting devices |
IEC 60909-0:2016 | Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents |
IEC 61869-1:2007 | Instrument transformers - Part 1: General requirements |
IEC 60255-121:2014 | Measuring relays and protection equipment - Part 121: Functional requirements for distance protection |
IEC 60044-1:1996+AMD1:2000+AMD2:2002 CSV | Instrument transformers - Part 1: Current transformers |
IEC 60255-1:1967 | Electrical relays - Part 1: Instantaneous all-or-nothing relays |
IEC 60255-127:2010 | Measuring relays and protection equipment - Part 127: Functional requirements for over/under voltage protection |
IEC 60255-151:2009 | Measuring relays and protection equipment - Part 151: Functional requirements for over/under current protection |
IEC 60050-321:1986 | International Electrotechnical Vocabulary (IEV) - Part 321: Instrument transformers |
IEC 60255-149:2013 | Measuring relays and protection equipment - Part 149: Functional requirements for thermal electrical relays |
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