Overloading protection of future low voltage distribution networks

The future distribution networks are going to be challenged by increasing penetration of distributed generators and simultaneously by increasing loading (inter alia heat pumps, air conditioners or electric vehicles). The increasing penetration of those appliances can escalate and jeopardize the functionality of current protection devices. Therefore, this article proposes a new overloading protection scheme applicable at low voltage level distribution networks to tackle this situation. The overloading problem is presented and the new protection scheme is demonstrated in a case study. The proposed protection should help to increase the flexibility of distribution networks, their safety and reliability.