Cart (Loading....) | Create Account
Close category search window
 

Theory and practical performance of interlocked overcurrent busbar zone protection in distribution substations

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 $31
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

3 Author(s)
Brewis, K. ; VATECH Reyrolle ACP Ltd., UK ; Hearfield, K. ; Chapman, K.

Modern microprocessor based numeric overcurrent protection relays provide multiple overcurrent elements, including instantaneous elements, with tightly defined characteristics. Additionally such relays can provide internal timers with accurate independent pick-up and drop-off time delay settings, initiated from digital status inputs and capable of being mapped to output relays. Numeric relays also provide digital status inputs that can be user selected to internally inhibit the overcurrent elements. A distribution substation normally has overcurrent relays applied to all the incomers and to all outgoing feeders. The instantaneous elements and timers of these relays may be used not only for plain overcurrent protection but also as part of an efficient, cost effective, high speed, busbar zone protection, which protects not only for busbar faults but also internal faults within the circuit breakers. This paper discusses the protection theory and application issues to be considered in the design of busbar protection schemes utilising the instantaneous elements contained in numeric overcurrent relays and also reports on in-service performance

Published in:

Developments in Power System Protection, 2001, Seventh International Conference on (IEE)

Date of Conference:

2001

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.