Standards
Small transformers up to a power of 40kVA are dealt with in the standard DIN EN IEC 61558-1, at the same time VDE0570 Part 1 and IEC 61558-1. It is currently available in the 12/2019 issue. Transition period for issue 07/2006: 21.06.2022
Part 1 of this standard describes general requirements and tests. It is complemented by a larger and growing number of “Parts 2”. These describe the requirements for transformers for a wide range of applications. An overview of these parts 2 can be found at www.vde.com or www.vde-verlag.de. In addition, transformers are also specified in some national and international equipment standards.
Transformers and chokes of higher power ratings are described in the VDE 0532 / EN 60076 family of standards. However, in consultation with the purchaser, the above-mentioned EN 61558 for transformers with rated powers > 25/40kVA (single-phase/multi-phase) can also be used. BREMER Transormatoren GmbH generally proceeds in accordance with this option. Some high-voltage and insulating transformers of the BREMER manufacturing programme are not described appropriately by any standard. For these special transformers, agreements between the user and the manufacturer apply, especially with regard to the test procedures and test levels to be used.
Do not hesitate to ask us about the EN61558 family of standards.