Application of Zone Selective Interlocking in Electrical Power Distribution System
K. Shashidhar Reddy1, M.Lakshmi Swarupa2, D.Mamtha3
1Dr.K. Shashidhar Reddy, Electrical and Electronics Engineering Department, CVR College of Engineering, Hyderabad, India.
2Dr. M. Lakshmi Swarupa, Electrical and Electronics Engineering Department, CVR College of Engineering, Hyderabad, India.
3Ms.D.Mamtha, Electrical and Electronics Engineering Department, CVR College of Engineering, Hyderabad, India.
Manuscript received on November 22, 2019. | Revised Manuscript received on December 15, 2019. | Manuscript published on December 30, 2019. | PP: 2294-2299 | Volume-9 Issue-2, December, 2019. | Retrieval Number: B3622129219/2019©BEIESP | DOI: 10.35940/ijeat.B3622.129219
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The two major concerns in today’s electrical distribution system are the potential damage from fault stress and the costs associated with power outages. The optimal way to limit fault stress is to clear the fault in the shortest amount of time. Unfortunately, clearing the fault within the shortest amount of time might sacrifice coordination and lead to broader power outages. Zone Selective Interlocking Coordination assures the possible sustaining of faults for over currents and voltages with different faults. The circuit breaker operation and principle depend upon the open and close operation for the continuity of supply/service. To reduce the stress on the system, generated energy during fault conditions to be considered and its coordination to be checked.
Keywords: Distribution system, Zone selective interlocking, Coordination, MATLAB – SIMULINK.