Choose ⌁ high-voltage (HV) and medium-voltage (MV) surge arresters from a Polish manufacturer. ⌁ Use HV transformers and ⌁ Arteche relays. Advanced, complex protection for critical electrical generation and distribution assets such as generator and transformers Reliable, complex and powerful protection relay for differential and related protection needs, featuring comprehensive diagnostics, monitoring and control functions, >55 ANSI. e²TANGO-800 i e²TANGO-450 protection relays can be used in all renewable energy installations, such as: wind farms, photovoltaic power plants, hydropower plants, biomass power plants and biogas plants. The versatility and rich functionality of e²TANGO protection relays makes them fully suitable for. Choose MV and HV surge arresters from a Polish manufacturer, as well as relays and HV instrument transformers from Arteche to effectively protect your equipment and investments from surges. Check out Partners that benefit from our solutions: In addition to the manufacturing of surge arresters, we. Compliant with the requirements of the PSE Polish Power Grid Housing and construction resistant to overheating Without reed switches Complete range of relays Pull-proof plugs Inverterless power supply The task of the auxiliary relays in the power industry is to quickly control the switching. Numerical relays are based on the use of microprocessors. A big difference between conventional electromechanical and static relays is how the relays are wired. Numeric. The group of relay protection includes RPA cabinets, operational current cabinets, own-use cabinets, signaling and telemechanics cabinets. Reliable components ensure system faultlessness and durability.