We are currently experiencing intermittent issues impacting performance. We apologize for the inconvenience.
By Topic

A fault section detection method using ZCT when a single phase to ground fault in ungrounded distribution system

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)
Lim, I.H. ; Dept. of Electr. Eng. & Comput. Software Eng., Myongji Univ., Yongin, South Korea ; Lim, H.T. ; Myeon-Song Choi ; Seung-Jae Lee
more authors

A single line to ground fault (SLG) detection in ungrounded network is very difficult, because fault current magnitude is very small. It is generated by a charging current between distribution line and ground. As it is very small, is not used for fault detection in case of SLG. So, SLG has normally been detected by switching sequence method which makes customers experience blackouts. A new fault detection algorithm based on comparison of zero-sequence current and line-to-line voltage phases is proposed. The algorithm uses ZCT installed to ungrounded distribution network. The proposed in this paper algorithm has the advantage that it can detect fault phase and distinguish a faulted section as well. The simulation tests of proposed algorithm were performed using Matlab Simulink and the results are presented in the paper.

Published in:

Transmission and Distribution Conference and Exposition, 2010 IEEE PES

Date of Conference:

19-22 April 2010