Impact of Time Multiplier Setting Range on Optimum Coordination of Directional Overcurrent Relays

Forfattere

  • Amol A Kalage Department of Electrical Engineering, Government College of Engineering, Amravati, Maharashtra, India
  • Nitin D Ghawghawe Department of Electrical Engineering, Government College of Engineering, Amravati, Mahara

Nøgleord:

Relay coordination, IDMT relay, TLBO, MATLAB

Resumé

Over-current relays especially Inverse Definite Minimum Time (IDMT) relays are most commonly used protective device in the distribution system. It is vital that during abnormalities or faults, the IDMT relays must be capable to isolate only the faulty part of power system from the healthy system. The operating time of IDMT relays can be reduced with proper coordination between primary and backup relays by selecting optimum settings. Heuristic-based optimization techniques are used to find the optimum solution for time multiplier setting (TMS) and plug setting (PS) of IDMT relays. In this paper, investigations are carried out to explore the impact of TMS range selected in the optimization problem on optimum settings of IDMT relays. The results of these investigations have shown that better results can be obtained with a minimum range of TMS. Three case studies are presented to show the impact of TMS range on optimum relay settings.  Keywords: Relay coordination, IDMT relay, TLBO, MATLAB

Downloads

Publiceret

2014-12-13

Nummer

Årg. 4 Nr. 3 (2014)

Sektion

Research Articles

Licens

Declaration and Copyright Transfer Form

(to be completed by authors)

 

I/ We, the undersigned author(s) of the submitted manuscript, hereby declare, that the above manuscript which is submitted for publication in the STM Journals(s), is not published already in part or whole (except in the form of abstract) in any journal or magazine for private or public circulation, and, is not under consideration of publication elsewhere.

·         I/We will not withdraw the manuscript after 1 week of submission as I have read the Author Guidelines and will adhere to the guidelines.

·         I/We Author(s ) have niether given nor will give this manuscript elsewhere for publishing after submitting in STM Journal(s).

·         I/ We have read the original version of the manuscript and am/ are responsible for the thought contents embodied in it. The work dealt in the manuscript is my/ our own, and my/ our individual contribution to this work is significant enough to qualify for authorship.

·          I/We also agree to the authorship of the article in the following order:

Author’s name                                    

 

1. ________________

2. ________________

3. ________________

4. _______________

 

We  Author(s) tick this box and would request you to consider it as our signature as we agree to the terms of this Copyright Notice, which will apply to this submission if and when it is published by this journal.