Measuring relays and protection equipment Functional requirements for over/under voltage protection

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

02-28-2014

Publisher

British Standards Institution

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

Specifies minimum requirements for over/under voltage relays. And it includes specification of the protection function, measurement characteristics and time delay characteristics.

This part of IEC 60255 specifies minimum requirements for over/under voltage relays. The standard includes specification of the protection function, measurement characteristics and time delay characteristics. This standard defines the influencing factors that affect the accuracy under steady state conditions and performance characteristics during dynamic conditions. The test methodologies for verifying performance characteristics and accuracy are also included in this standard. The over/under voltage functions covered by this standard are as follows: IEEE/ANSI C37.2
Function numbers IEC 61850-7-4
Logical nodes Phase undervoltage protection 27 PTUV Positive sequence undervoltage protection 27D PTUV Phase overvoltage protection 59 PTOV Residual/zero-sequence overvoltage protection 59N/59G PTOV Negative sequence/ unbalance overvoltage protection 47 PTOV The general requirements for measuring relays and protection equipment are specified in IEC 60255-1.

Committee	PEL/95
DevelopmentNote	Together with BS EN 60255-151, it supersedes BS EN 60255-3. Supersedes 08/30186712 DC. (02/2014)
DocumentType	Standard
Pages	28
PublisherName	British Standards Institution
Status	Current
Supersedes	08/30186712 DC : DRAFT JULY 2008 BS EN 60255-3:1998

Standards	Relationship
IEC 60255-127:2010	Identical
EN 60255-127:2014	Identical

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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BS EN 60255-127:2014

Current

Table of Contents

Abstract

Scope

General Product Information

International Equivalents

Standards Referencing This Book

Category

Subcategory

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