Verification of the real need of surge arresters - Summary

The original project of a new power plant had included, in the high voltage substation isolated with SF6, the installation of four (three-phase) surge arresters. The real convenience of those surge arresters for the protection of the transformers was studied.

The simulations demonstrated that three three-phase of surge arresters, included in the original project, did not give benefits in the protection of the transformers, therefore were not included in the final project. Thanks to the simulations, the costs of the protection system of the new power plant could be subsatnially reduced!

Description