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I.S. EN 60255-151:2009

Current
Current

The latest, up-to-date edition.

MEASURING RELAYS AND PROTECTION EQUIPMENT - PART 151: FUNCTIONAL REQUIREMENTS FOR OVER/UNDER CURRENT PROTECTION
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2009

Publisher

National Standards Authority of Ireland

Preview

For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

FOREWORD
1 Scope and object
2 Normative references
3 Terms and definitions
4 Specification of the function
5 Performance specification
6 Functional test methodology
7 Documentation requirements
Annex A (normative) - Constants for dependent time operating
        and reset characteristics
Annex B (informative) - Reset time determination for relays
        with trip output only
Bibliography
Annex ZA (normative) - Normative references to international
         publications with their corresponding European
         publications

Defines minimum requirements for over/under current relays. It includes a specification of the protection function, measurement characteristics and time delay characteristics.

DevelopmentNote
Supersedes I.S. EN 60255-3. (04/2010) 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
36
PublisherName
National Standards Authority of Ireland
Status
Current

Standards Relationship
IEC 60255-151:2009 Identical
EN 60255-151:2009 Identical

IEC GUIDE 107:2014 Electromagnetic compatibility - Guide to the drafting of electromagnetic compatibility publications
IEC 60050-447:2010 International Electrotechnical Vocabulary (IEV) - Part 447: Measuring relays
EN 60255-1:2010 Measuring relays and protection equipment - Part 1: Common requirements
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
IEC 60255-8:1990 Electrical relays - Part 8: Thermal electrical relays
IEC 60050-444:2002 International Electrotechnical Vocabulary (IEV) - Part 444: Elementary relays

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Hardcopy - English
PDF - English
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