Key points are not available for this paper at this time.
The overcurrent relay protection is the most commonly used against line to line faults in medium voltage power lines. The main requirements for the relay protection are selectivity, sensitivity, quick operation and reliability. The continuity of the power supply is one of the main requirements for the operators of the electric system. This leads to increased requirements for the relay protection. Present paper discusses the parameters for setting the overcurrent relay protection, providing the requirements for selectivity and sensitivity of the relay protection.
Mehmed-Hamzа et al. (Thu,) studied this question.