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Short circuits, overloads, or voltage fluctuations that may occur in electrical transmission and distribution lines do not only damage devices; they can cause an entire region to remain without power. Protection relays, developed to prevent such scenarios, act as the "fuse" and "supervisor" of the grid.

Rapid Response, Maximum Protection

In the event of a fault, being able to respond within milliseconds is vital to isolate the rest of the system. As RELKO – ROLESAN, we design our high-precision protection relays used in MV, LV, and HV segments to operate stably even in the harshest field conditions. Our line differential, distance protection, and overcurrent relays, developed with our indigenous engineering power, carry grid security above international standards.

System Continuity and Selective Protection

A correctly configured relay coordination ensures that only the faulty section is disconnected from the system, preventing unnecessary outages. With over 30 years of sectoral experience, we maximize operational continuity through the selective protection solutions we offer in our projects. Our hardware, which supports next-generation communication protocols, operates in full integration with SCADA systems, providing instantaneous data tracking and remote intervention capabilities.

A Secure Future with National Engineering

The security of energy infrastructures is directly related to technological independence. By managing all processes from design to software in-house, we equip Turkey's energy networks with local and national technologies. Our protection and supervision systems, which we constantly update through our R&D studies, continue to be the address of trust in energy transmission.