teleprotection
Teleprotection refers to a system of protective relays and communication channels used to detect faults in an electrical power system and to rapidly trip circuit breakers to isolate the faulty section. The primary goal of teleprotection is to ensure the stability and reliability of the power grid by minimizing the duration of faults. This is achieved by allowing protective relays at one end of a transmission line to communicate with relays at the other end, enabling faster and more selective fault clearing than would be possible with local relays alone.
The communication channels can be diverse, including dedicated fiber optic cables, power line carrier current (PLCC)
When a fault occurs, protective relays at both ends of the protected equipment measure system parameters like