BS EN 60255-127:2014
Current
The latest, up-to-date edition.
Measuring relays and protection equipment Functional requirements for over/under voltage protection
Hardcopy , PDF
English
28-02-2014
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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.
| 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 |
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.
| 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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