EN 60255-151:2009
Current
Measuring relays and protection equipment - Part 151: Functional requirements for over/under current protection
10-23-2009
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
IEC 60255-151:2009 specifies minimum requirements for over/under current relays. It includes a specification of the protection function, measurement characteristics and time delay characteristics. Defines the influencing factors that affect the accuracy under steady state conditions and performance characteristics during dynamic conditions.
| Committee |
CLC/TC 95X
|
| DevelopmentNote |
Supersedes EN 60255-3. (04/2010)
|
| DocumentType |
Standard
|
| PublisherName |
European Committee for Standards - Electrical
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| NEN EN IEC 60255-151 : 2009 | Identical |
| DIN EN 60255-151:2010-05 | Identical |
| VDE 0435-3151:2010-05 | Identical |
| IEC 60255-151:2009 | Identical |
| BS EN 60255-151:2009 | Identical |
| NF EN 60255-151 : 2010 | Identical |
| I.S. EN 60255-151:2009 | Identical |
| NBN EN 60255-151 : 2010 | Identical |
| CEI EN 60255-151 : 2011 | Identical |
| UNE-EN 60255-151:2009 | Identical |