MEASURING RELAYS AND PROTECTION EQUIPMENT - PART 149: FUNCTIONAL REQUIREMENTS FOR THERMAL ELECTRICAL RELAYS (IEC 60255-149:2013 (EQV))

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Hardcopy , PDF

Language(s)

English

Published date

01-01-2013

Publisher

National Standards Authority of Ireland

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FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Specification of the function
5 Performance specification
6 Functional test methodology
7 Documentation requirements
Annex A (informative) - Simple first-order thermal
        model of electrical equipment
Annex B (informative) - Thermal electrical relays
        which use temperature as setting parameters
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

Defines a common and reproducible reference for evaluating dependent time relays which protect equipment from thermal damage by measuring a.c. current flowing through the equipment.

DevelopmentNote	Supersedes I.S. EN 60255-8. (10/2013) For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
DocumentType	Standard
Pages	52
PublisherName	National Standards Authority of Ireland
Status	Current
Supersedes	I.S. EN 60255-8:1998

Standards	Relationship
EN 60255-149:2013	Identical

IEC 60947-4-1:2009+AMD1:2012 CSV	Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters
EN 60085:2008	Electrical insulation - Thermal evaluation and designation
EN 61850-7-4:2010	Communication networks and systems for power utility automation - Part 7-4: Basic communication structure - Compatible logical node classes and data object classes
IEC 60085:2007	Electrical insulation - Thermal evaluation and designation
EN 60255-1:2010	Measuring relays and protection equipment - Part 1: Common requirements
IEC 61850-9-2:2011	Communication networks and systems for power utility automation - Part 9-2: Specific communication service mapping (SCSM) - Sampled values over ISO/IEC 8802-3
IEC 60947-4-2:2011	Low-voltage switchgear and controlgear - Part 4-2: Contactors and motor-starters - AC semiconductor motor controllers and starters
IEC 60255-1:1967	Electrical relays - Part 1: Instantaneous all-or-nothing relays
IEC 61850-7-4:2010	Communication networks and systems for power utility automation - Part 7-4: Basic communication structure - Compatible logical node classes and data object classes
IEEE C37.96-2012	IEEE Guide for AC Motor Protection

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I.S. EN 60255-149:2013

Current

Table of Contents

Abstract

General Product Information

International Equivalents

Standards Referencing This Book

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