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CENELEC
EN 60255-127:2014

EN 60255-127:2014

Current

Current

The latest, up-to-date edition.

Measuring relays and protection equipment - Part 127: Functional requirements for over/under voltage protection

Published date

10-01-2014

Publisher

European Committee for Standards - Electrical

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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 (informative) - Reset time determination
        for relays with trip output only
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

IEC 60255-127:2010 specifies minimum requirements for over/under voltage relays. The standard includes specification of the protection function, measurement characteristics and time delay characteristics.

Committee
CLC/TC 95X
DevelopmentNote
Supersedes EN 60255-3. (01/2014)
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Current
Supersedes

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CLC/TS 50549-2:2015 Requirements for generating plants to be connected in parallel with distribution networks - Part 2: Connection to a MV distribution network
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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 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 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

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