<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>47</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Richard Guinee</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Novel Correlation Tester for Multicore Power Cable Fault Finding and Identification using Pseudonoise Sequences</style></title><secondary-title><style face="normal" font="default" size="100%">Proceedings of the 44th International Universities Power Engineering Conference</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Diagnostics and Measurements in Power Systems</style></keyword><keyword><style  face="normal" font="default" size="100%">Fault identification</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">September</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%"></style></number><edition><style face="normal" font="default" size="100%"></style></edition><publisher><style face="normal" font="default" size="100%"></style></publisher><pub-location><style face="normal" font="default" size="100%">University of Strathclyde</style></pub-location><volume><style face="normal" font="default" size="100%"></style></volume><pages><style face="normal" font="default" size="100%"></style></pages><isbn><style face="normal" font="default" size="100%"></style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Power line testing and fault finding is a well established test and measurement trouble-shooting strategy deployed in the electrical power utilities and ICT sectors to guarantee stable electrical energy supply to consumers and quality of service to telephone subscribers. Time domain reflectometry (TDR), as a test strategy, has been the mainstay of fault diagnostics on transmission systems for many years and in the development of high frequency test and measurement network analyzers. However it suffers from the drawback of relying on a single reflected pulse echo for power cable fault signature analysis that is susceptible to measurement inaccuracy due to link attenuation with lengthy fault distance and phase distortion with frequency as well as resolution error in the presence of noise pickup. In this paper a novel pulse tester correlation strategy with experimental validation, using pseudonoise (pN) sequences, is presented here as a superior alternative to TDR for multi-core power cable fault location and identification. This fault identification procure can used in a number of essential industrial scenarios embracing overhead power lines and underground cables in inaccessible locations which rely on a pathway for power transfer and/or signal propagation. The method is based on the injection of a pseudorandom pulse train into the faulty cable under test which results in a pulse echo reflection from the fault interface back to the test signal source. The reflected echo is then cross correlated (CCR) with the pN test input to give a unique signature for (i) identification of the fault type or load termination present as well as (ii) its distance from the point of test stimulus injection. A key feature is the potential usage of pN sequences for long distance fault finding at low amplitude levels online over several pN cycles to reject 50/60Hz mains voltage and extraneous noise pickup, without disturbance to normal signal traffic if present, during the CCR process for the purpose of multiple fault coverage, resolution and identification.</style></abstract><issue><style face="normal" font="default" size="100%"></style></issue><work-type><style face="normal" font="default" size="100%"></style></work-type><accession-num><style face="normal" font="default" size="100%"></style></accession-num><call-num><style face="normal" font="default" size="100%"></style></call-num><notes><style face="normal" font="default" size="100%"></style></notes><custom1><style face="normal" font="default" size="100%"></style></custom1><custom2><style face="normal" font="default" size="100%"></style></custom2><custom3><style face="normal" font="default" size="100%"></style></custom3><custom4><style face="normal" font="default" size="100%"></style></custom4><custom5><style face="normal" font="default" size="100%"></style></custom5><custom6><style face="normal" font="default" size="100%"></style></custom6><custom7><style face="normal" font="default" size="100%"></style></custom7><research-notes><style face="normal" font="default" size="100%"></style></research-notes><num-vols><style face="normal" font="default" size="100%"></style></num-vols><orig-pub><style face="normal" font="default" size="100%"></style></orig-pub><reprint-edition><style face="normal" font="default" size="100%"></style></reprint-edition><section><style face="normal" font="default" size="100%"></style></section><auth-address><style face="normal" font="default" size="100%"></style></auth-address><remote-database-name><style face="normal" font="default" size="100%"></style></remote-database-name><remote-database-provider><style face="normal" font="default" size="100%"></style></remote-database-provider><label><style face="normal" font="default" size="100%"></style></label><access-date><style face="normal" font="default" size="100%"></style></access-date></record></records></xml>
