Who protects the grid when auxiliary power fails?

POWERSAVE – Self-Powered Distance Protection for Modern Power Networks

The energy transition is making power networks more decentralized, complex and increasingly dependent on reliable protection systems.

At the same time, a failure of the auxiliary power supply can compromise protection exactly when it is needed most.

This presentation introduces POWERSAVE a self-powered distance protection solution that combines current-transformer-powered operation with distance protection to provide reliable tripping without relying on conventional auxiliary power.

We will explore how this approach can strengthen grid resilience, support blackout prevention and enable the modernization of existing networks through practical retrofit solutions.

Real-world applications demonstrate how self-powered protection can help utilities prepare their networks for a more decentralized and demanding energy future.