EN 60255-149:2013
Current
The latest, up-to-date edition.
Measuring relays and protection equipment - Part 149: Functional requirements for thermal electrical relays
10-04-2013
FOREWORD
1 Scope
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) - Simple first-order thermal
model of electrical equipment
Annex B (informative) - Thermal electrical relays
which use temperature as setting parameters
Bibliography
Annex ZA (normative) - Normative references to
international publications with their
corresponding European publications
IEC 60255-149:2013 specifies minimum requirements for thermal protection relays. This standard includes specification of the protection function, measurement characteristics and test methodologies. The object is to establish a common and reproducible reference for evaluating dependent time relays which protect equipment from thermal damage by measuring a.c. current flowing through the equipment. Complementary input energizing quantities such as ambient, coolant, top oil and winding temperature may be applicable for the thermal protection specification set forth in this standard. This standard covers protection relays based on a thermal model with memory function.
Committee |
CLC/TC 95X
|
DevelopmentNote |
Supersedes EN 60255-8. (10/2013)
|
DocumentType |
Standard
|
PublisherName |
European Committee for Standards - Electrical
|
Status |
Current
|
Supersedes |
Standards | Relationship |
NBN EN 60255-149 : 2013 | Identical |
PN EN 60255-149 : 2014 | Identical |
VDE 0435-3149 : 2014 | Identical |
CEI EN 60255-149 : 2014 | Identical |
NEN EN IEC 60255-149 : 2013 | Identical |
I.S. EN 60255-149:2013 | Identical |
IEC 60255-149:2013 | Identical |
BS EN 60255-149:2013 | Identical |
UNE-EN 60255-149:2013 | Identical |
SN EN 60255-149:2013 | Identical |
NF EN 60255-149 : 2014 | Identical |
PNE-FprEN 60255-149 | Identical |
IEC 60947-4-1:2009+AMD1:2012 CSV | Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters |
EN 60085:2008 | Electrical insulation - Thermal evaluation and designation |
EN 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 60085:2007 | Electrical insulation - Thermal evaluation and designation |
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 60947-4-2:2011 | Low-voltage switchgear and controlgear - Part 4-2: Contactors and motor-starters - AC semiconductor motor controllers and starters |
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 |
IEEE C37.96-2012 | IEEE Guide for AC Motor Protection |
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