BS EN 50708-3-1:2020
$102.76
Power transformers. Additional European requirements – Large power transformers. General requirements
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 20 |
The scope of this document is to define performance requirements of Large Power Transformers in compliance with EN 50708-1-1:2020. NOTE This document covers the transformers under Commission Regulation (EU) No 548/2014 of 21 May 2014 and its amendment No 2019/1783 of 1 October 2019, gives additional specific guidance for single phase transformers, autotransformers, multi winding transformers and for transformers with OD and OF cooling systems, necessary for the correct application of energy efficiency requirements to these categories of transformers.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions 4 Service condition 5 Rating and general requirements 5.1 Energy performance requirements 5.1.1 General 5.1.2 Minimum PEI values |
| 10 | 5.1.3 Optimization of transformer losses according to application 6 Rating plate 7 Tolerances 8 Acceptance Tests 9 Accessories and fittings 10 Capitalization of losses 11 Transformers overhaul |
| 11 | Annex A (Informative)Peak Efficiency Index formula, graphs and calculations A.1 Calculation of kPEI |
| 12 | A.2 Graph of Efficiency Index and load factor with loss contributions A.2.1 General A.2.2 Example of a typical ONAN or ONAN/ONAF transformer |
| 13 | A.2.3 Example of a typical ONAN or ONAN/ONAF transformer |
| 14 | A.3 Independence of PEI to rated power |
| 15 | A.4 Calculation of losses from PEI, kPEI and Sr |
| 16 | Annex ZZ(informative)Relationship between this European Standard and the ecodesign requirements of Commission Regulation (EU) No 548/2014 of 21 May 2014 and its amendment No 2019/1783 of 1 October 2019 on implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to small, medium and large power transformers aimed to be covered |
