Effect of fault location on optimal coordination of directional over current relay

Author

Aggarwal, Chetan ; Mangalvedekar, H.A. ; Chaudhari, H.B.

Author_Institution

Electr. Dept, VJTI-Siemens-AICTE High Voltage Lab.

fYear

2008

fDate

19-21 Nov. 2008

Firstpage

1

Lastpage

5

Abstract

The objective of optimal relay coordination in interconnected power system is to achieve selectivity without sacrificing sensitivity & fast fault clearance time. This paper presents the effect of fault location on the flow of current direction & optimal coordination of directional over current relay. In this coordination problem Time Dial Setting (TDS) & Pick up Current Setting (Ip) of all relays considered as optimal parameter & it will provide coordination for all kind of fault (LLL, LLG, LG). The problem is solved using optimization toolbox of MatLab for continuous value of TDS & Ip.

Keywords

fault location; mathematics computing; power system protection; relay protection; MatLab; current relay; directional relay; fault location; optimization toolbox; pick up current setting; time dial setting; Fault currents; Fault location; Integer linear programming; Power system faults; Power system interconnection; Power system protection; Power system relaying; Power system reliability; Protective relaying; Relays; LLL LLG LG fault coordination; Optimal relay coordination; Over current relay; Power system protection;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 2008 - 2008 IEEE Region 10 Conference

Conference_Location

Hyderabad

Print_ISBN

978-1-4244-2408-5

Electronic_ISBN

978-1-4244-2409-2

Type

conf

DOI

10.1109/TENCON.2008.4766588

Filename

4766588