Application of a new IEC magnetic field assessment methodology to promote transformer substation sustainable development

The publication of the new Technical Report IEC/TR 62271-208 allow transformer substation (TS) manufacturers and users to assess the generated magnetic fields (MF) since it describes standard methods for its evaluation and opens the possibility of employing simulation tools for this purpose. This paper describes the validation process of a finite-element method simulation tool to be used for 50 Hz MF assessment according to IEC/TR 62271-208. The analysis has been carried out for an underground packaged TS, manufactured by ORMAZABAL. The model has been validated by comparisons with on-site measurements. Once the simulation tool had been validated, IEC/TR 62271-208 allows its use for evaluating the MF generated by the TS without empirical testing. This implies not only a reduction of costs and time-to-market, but also a highly efficient method to test what if virtual scenarios able to address to better sustainable products. A methodology has been developed with this purpose.