5.0 | 5 ratings Rate this file 74 Downloads (last 30 days) File Size: 172 KB File ID: #30533 Version: 1.5

OverCurrent Relay (Directional & Non Directional)



24 Feb 2011 (Updated )

Design and Testing of OCR on Power System.

| Watch this File

File Information

File contains the design of a digital over current relay block (Directional and Non Directional) – a key component of any protection scheme – and its performance on SIMULINK®. A 400V industrial distribution power system is used as a tutorial to simulate and test over-current relay’s performance results, with motor start up inrush current consideration and backup relay coordination for safe and reliable operation. Similarly, a 132kV loop network is used as tutorial to simulate and test the directional over-current relay’s performance.

This is authorized work. Any modification in simulation need citation of work or prior permission from author.

For Details Refer Journal Paper:

M.M. Aman;, M.Q.A. Khan;, S.A. Qazi;, Digital Directional and Non-Directional Over Current Relays: Modelling and Performance Analysis, NED University Journal of Research, 8 (2011).


Required Products SimPowerSystems
MATLAB release MATLAB 7.10 (R2010a)
Tags for This File   Please login to tag files.
Please login to add a comment or rating.
Comments and Ratings (6)
10 Oct 2015 ahmad khataibeh  
10 Oct 2015 ahmad khataibeh

i want to study the effect of harmonics on OCR( (effect on pic up and operation time) by this model...can u help me to examine results .

Comment only
21 May 2014 Montazer  
22 Apr 2013 mohammad  
14 Oct 2011 Abdulvehhab  
25 Apr 2011 sara noaman  
07 Dec 2011 1.2

Accepted Journal Paper and link mentioned.

25 Jan 2012 1.3

For details of simulations, paper has been referred now.

01 Apr 2013 1.5

Reference paper details updated

Contact us