EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of IEC EN 62271-308 testing. This technical report contains information and test procedures for type testing of circuit breakers regarding short-circuit breaking performance during the asymmetric test task (T62271a) as required by IEC EN 100-100. This whitepaper covers all possible test cases such as single-phase, three-phase, direct tests, synthetic tests, first pole to zero multipliers 1,3 and 1,5.
IEC 100-62271 test procedures for short-circuit breaking performance during the asymmetric test task (T100a) only have the time constant of the DC test circuit equal to or close to the nominal DC.
This whitepaper is generally applicable and the time constant of the DC test circuit is equal to or different from the rated DC. time constant of the rated short-circuit breaking current. To allow for more than one rated DC, tolerances in the test parameters are also given. the time constant can be covered by a single test series. This concept of asymmetry equivalence can also help the user to balance system needs with rating requirements.
When the time constant of the DC test circuit is different from the rated DC. the time constant of the rated short-circuit breaking current, the test procedures given in IEC EN 62271-100 cannot be directly applied and the test procedure given in this technical report must be followed. The procedures given in this manual, the time constant of the DC test circuit is equal to the rated DC.
EUROLAB assists manufacturers with IEC EN 62271-308 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.
To get an appointment, to get more detailed information or to request an evaluation, you can ask us to fill in our form and reach you.
EUROLABreporting and certification activities, United Accreditation Foundation (UAF), Turkish Accreditation Agency (TÜRKAK) ve Enterprise Accreditation Foundation (EAF) based on the accreditation provided by the accreditation body. The Enterprise Accreditation Foundation (EAF) accreditation body is also a signatory of the United Nations (UN GLOBAL COMPACT) organization.
