Siemens introduces virtualized protection for digital substations

Siemens Smart Infrastructure has introduced Siprotec V, a software-based version of its protection and control system for power grids designed for digital substations. The solution replaces dozens of individual protection relays traditionally installed in substation cabinets by running their functions as virtual applications on an industrial server located within the facility. In this way, the functions of up to 60 devices can be consolidated into a single platform, simplifying installation and reducing the need for numerous cables and panels.

According to Siemens, capital investment costs can be reduced by up to 25%, while the space required for equipment in the facility can be lowered by up to 45%. Thanks to reduced copper cabling, CO₂ emissions per substation can drop by up to 50%, along with approximately 20% lower lifecycle costs. Virtualization also enables digital testing of configurations before commissioning, faster deployment, and easier upgrades without hardware replacement.

The platform supports advanced analytics and real-time grid monitoring applications, allowing operators to detect faults more quickly and prevent power outages. Siemens states that Siprotec V represents a step toward software-defined power systems and the modernization of critical infrastructure while maintaining high standards of cybersecurity and reliability.