Tag Archives: SARFIx

Impact of Protective Relays on Voltage Sag Index

Published by Xinke GAO1,2 , Yapeng LIU3 , Congying WANG4,School of Electronic, Information and Electrical Engineering, Shanghai Jiao Tong University (1),Institute of Information Technology Luoyang Normal College (2),Power Supply of Qingdao Company, Shandong Electric Power Corporation (3),School of foreign language, Shanghai Jiao Tong University (4) Abstract. This paper provides the probability-assessment analysis on the characteristicContinue reading “Impact of Protective Relays on Voltage Sag Index”

Customer Data Analysis

Published by Electrotek Concepts, Inc., PQSoft Case Study: Customer Data Analysis, Document ID: PQS1102, Date: March 15, 2011. Abstract: Monitoring is often used to characterize power quality levels at various locations on utility and customer power systems. Field measurements provide a convenient means to characterize power quality problems. This case study summarizes a commercial customer powerContinue reading “Customer Data Analysis”

Distribution Substation Voltage Variation Measurement Data Evaluation

Published by Electrotek Concepts, Inc., PQSoft Case Study: Distribution Substation Voltage Variation Measurement Data Evaluation, Document ID: PQS1007, Date: October 15, 2009. Abstract: This case study presents a voltage variation data analysis for a 12.47 kV substation monitoring location for a three-month period. The analysis included trends of the rms voltage and unbalance and statistical analysisContinue reading “Distribution Substation Voltage Variation Measurement Data Evaluation”

Statistical Analysis of Voltage Dips and Interruptions – Final Results From the EPRI Distribution System Power Quality Monitoring Survey

Published by D. D. Sabin, Email: dsabin@electrotek.com T.E. Grebe, Email: tgrebe@electrotek.com M. F. McGranaghan, Email: markm@electrotek.com Electrotek Concepts, Inc., 408 North Cedar Bluff Road, Suite 500, Knoxville, TN, 37932 USA, Tel: +1-423-470-9222, Fax: +1-423-470-9223 A. Sundaram, Email: asundara@epri.com EPRI, 3412 Hillview Avenue, Palo Alto, CA, 94304 USA, Tel: +1-650-855-2304, Fax: +1-650-855-8997 SUMMARY This paper describesContinue reading “Statistical Analysis of Voltage Dips and Interruptions – Final Results From the EPRI Distribution System Power Quality Monitoring Survey”