Non-linear representation of voltage sag profiles for fault location in distribution networks
Document Type
Article
Publication Date
1-1-2011
Abstract
Fault location for distribution networks with multiple laterals would requires additional information such as from fault indicators and protective devices. As SCADA systems to provide such information are limited in 11 kV or lower voltage distribution networks, effective fault location method that only use information from a measurement at primary substation is needed. This paper presents the application of calculated non-linear voltage sag profiles and voltage sag measurement at primary substation to locate a fault in distribution networks. The proposed method firstly identifies the faulted section. From the indentified section, fault distance is calculated. The method has been tested under different fault scenarios that include various fault resistance, loading variation and data measurement errors. The results indicate the possibility of using this method to support automatic fault management system.
Keywords
Faulted section, Non-linear voltage sags profile, Fault distance, Fault resistance, Distribution networks, Distribution-systems
Divisions
fac_eng
Publication Title
International Journal of Electrical Power & Energy Systems
Volume
33
Issue
1
Publisher
International Journal of Electrical Power & Energy Systems
Additional Information
673UR Times Cited:6 Cited References Count:19