Catégorie : Transformers

SERGI is a French engineering company dedicated to strengthening the resilience of critical power infrastructure. In an evolving energy landscape shaped by ageing assets, electrification, and the rapid growth of renewables and data-intensive applications, ensuring continuity of service has become essential.

The company supports utilities, industrial operators, and infrastructure owners in managing transformer-related risks and mitigating the impact of major electrical incidents. Through a system-level engineering approach, its solutions enhance operational resilience, protect assets, and reduce downtime across critical networks.

Driven by an engineering philosophy that connects asset-level protection with network-wide resilience, SERGI strengthens grid security, safeguards critical infrastructure, and contributes to safer, more reliable, future-ready power systems.

The Transformer Protector (TP)

The Transformer Protector is SERGI’s patented mechanical safety solution engineered to eliminate transformer explosion risk. In the event of an internal fault, the TP activates within milliseconds, instantly depressurizing the tank and preventing catastrophic rupture. By suppressing fire ignition, oil projection, and blast effects at the source, the TP safeguards personnel, protects critical infrastructure, and ensures operational continuity in the most demanding power environments.

Engineering for Grid Resilience 

SERGI engineers grid resilience by addressing transformer failure mechanisms and controlling their consequences at the source. By supporting operators in the analysis of internal faults and the integration of adapted protection strategies, SERGI’s approach focuses on limiting mechanical rupture, fire propagation, and cascading effects within substations. Combining field experience with system-level engineering, SERGI contributes to safer, more reliable power systems operating under increasingly demanding conditions.

Protection of Critical Electrical Infrastructure

Supporting operators of critical electrical infrastructure, these solutions are engineered to secure the most sensitive and high-value assets. They preserve transformer integrity under fault conditions and prevent escalation into major incidents. This approach minimizes the risk of severe damage and operational downtime, enabling infrastructure owners to maintain control and ensure stable, reliable operations.

OUR ECO-RESPONSIBLE COMMITMENTS

SERGI is ISO 14001, ISO 9001 and ISO 45001 certified, reflecting a strong and structured commitment to environmental responsibility. Protecting critical power infrastructure also means protecting the environment. By preventing catastrophic transformer failures and limiting their consequences, SERGI’s solutions help reduce fire propagation, oil dispersion, and unnecessary equipment replacement. This approach promotes asset longevity, resource efficiency, and a measurable reduction of environmental impact within critical energy systems.

This commitment extends to strict compliance with international regulatory frameworks, including CE marking requirements such as the European Pressure Equipment Directive (PED), as well as ATEX, IECEx, and UL standards for operation in hazardous and regulated environments. Regulatory compliance is fully integrated into SERGI’s engineering approach, ensuring that protection architectures are not only technically robust, but also deployable within complex industrial, energy, and infrastructure systems.