Optimal coordination of directional overcurrent relays considering two-level fault current due to the operation of remote side relay

N Mohammadzadeh, RM Chabanloo… - Electric Power Systems …, 2019 - Elsevier
Overcurrent relays are widely used for the protection of distribution and sub-transmission
networks. The network topology change is one of the issues that affects the coordination of …

A robust approach for coordination of directional overcurrent relays in active radial and meshed distribution networks considering uncertainties

M Shabani, A Karimi - International Transactions on Electrical …, 2018 - Wiley Online Library
Penetration of distributed generations in distribution networks (active distribution networks)
has resulted in some problems such as change in short circuit level and direction of fault …

[PDF][PDF] A Review on Different Optimization Methods Employed for Optimum Coordination of Over Current Relays

TM Vala, VN Rajput - 2019 - researchgate.net
This paper presents a review on efforts made in protection system design principally to
obtain finest coordination of Over Current Relays (OCRs). A timeline of Graphical approach …