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Security relay / centralized busbar - 7SS85
The centralized busbar protection SIPROTEC 7SS85 is a selective, safe, and fast protection against busbar short circuits in medium voltage, high-voltage and very high voltage systems with the most various busbar configurations.Busbar protection devices SIPROTEC 7SS85 are part of the modular SIPROTEC 5 series and their main function bases on the principle of differential protection.
Additional protection and control functions extend the scope of application to a comprehensive station protection.
The flexibility of the functions and the modular hardware structure allow an optimum adaptation of the 7SS85 to the most various system configurations and functional requirements.