In the world of electrical networks, not all outages are created equal. A new study published in *Инженерные технологии и системы* (Engineering Technologies and Systems) has shed light on the stark differences in the consequences of outages between 110 kV and 0.4 kV electrical networks, offering crucial insights for the energy sector. The research, led by Alina V. Vinogradova of the Federal Scientific Agroengineering Center VIM, provides a comparative analysis that could reshape how we approach the design and construction of electrical networks.
The study, which analyzed statistical data from the Oryol region from 2018 to 2023, reveals a striking disparity in the impact of outages. “The consequences of emergency outages in 110 kV electrical networks are on average about 50 times greater than those in 0.4 kV networks,” Vinogradova explains. This finding underscores the significant commercial implications for the energy sector, where the reliability of high-voltage networks is paramount.
One of the most compelling aspects of the research is its focus on specific reliability indexes. By comparing these indexes, Vinogradova and her team have highlighted the need for a more nuanced approach to network design. “The average specific time of emergency interruptions per one outage in 0.4 kV electrical networks is more than 5 times greater than in 110 kV electrical networks,” the study notes. This suggests that while high-voltage networks may experience fewer outages, the impact when they do occur is far more severe.
The commercial impact of these findings cannot be overstated. For energy providers, understanding the specific consequences of outages in different voltage classes is crucial for minimizing downtime and ensuring a stable power supply. “The total annual consequences of accidents in 0.4 kV electrical networks are greater than those in 110 kV networks,” Vinogradova states. This revelation calls for a reevaluation of design standards, particularly for lower-voltage networks, to enhance their reliability and reduce the overall impact of outages.
The study also highlights the need for configuration management and automatic standby power supply systems. By implementing these measures, energy providers can significantly reduce the damage caused by outages, benefiting both rural consumers and power grid operators. “This will significantly reduce damage to both rural consumers and power grid operators,” Vinogradova emphasizes.
As the energy sector continues to evolve, the insights from this research will play a pivotal role in shaping future developments. By focusing on specific reliability indexes and understanding the unique challenges posed by different voltage classes, energy providers can develop more robust and resilient electrical networks. The study published in *Инженерные технологии и системы* serves as a critical stepping stone in this journey, offering valuable data and analysis that will drive innovation and improvement in the field.
In an industry where reliability is key, Vinogradova’s research provides a roadmap for enhancing the stability and efficiency of electrical networks. As the energy sector looks to the future, the lessons learned from this study will be instrumental in building a more resilient and sustainable power grid.

