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Due to rapid growth of loads in a distribution system and more network connections, high current flows in the event of short circuit faults in the system. In such cases, the relay coordination is disturbed and hence the equipment like circuit breakers needs to be enhanced in ratings perspective. So the relay can handle the new operating currents which are often expensive retrofit costs. The line impedance is kept normally low to accommodate more number of loads and distributed generator (DG)fatcat:q6fxtuxmsvcmbl564qg7twkj3u