Category Archives: Case Studies

Electric Arc Furnace Modeling for Voltage Flicker Evaluation

Published by Electrotek Concepts, Inc., PQSoft Case Study: Electric Arc Furnace Modeling for Voltage Flicker Evaluation, Document ID: PQS0313, Date: April 16, 2003. Abstract: A steel manufacturer is planning to add a second arc furnace to their existing facility. Concerns are raised as to whether the additional furnace will cause levels of voltage flicker that mightContinue reading “Electric Arc Furnace Modeling for Voltage Flicker Evaluation”

Wind Plant Voltage Flicker Data Analysis

Published by Electrotek Concepts, Inc., PQSoft Case Study: Wind Plant Voltage Flicker Data Analysis, Document ID: PQS1202, Date: January 26, 2012. Abstract: This case study presents the results for a wind plant voltage flicker data analysis. The characteristics of voltage flicker are mainly determined by load characteristics and the short-circuit capacity. The wind plant substationContinue reading “Wind Plant Voltage Flicker Data Analysis”

Substation Voltage Flicker Data Analysis

Published by Electrotek Concepts, Inc., PQSoft Case Study: Substation Voltage Flicker Data Analysis, Document ID: PQS1208, Date: June 4, 2012. Abstract: This case study presents a substation arc furnace flicker measurement data evaluation. The characteristics of voltage flicker are mainly determined by load characteristics and the short-circuit capacity. The analysis included a helpful index forContinue reading “Substation Voltage Flicker Data Analysis”

Voltage Notching and Distribution Systems II – Large DC Drive Examples

Published by Electrotek Concepts, Inc., PQSoft Case Study: Voltage Notching and Distribution Systems II – Large DC Drive Examples, Document ID: PQS0506, Date: June 30, 2005. Abstract: This case study describes voltage notching associated with large DC drives. The notching is a normal characteristic of a phase-controlled rectifier but this paper illustrates problems that can occurContinue reading “Voltage Notching and Distribution Systems II – Large DC Drive Examples”

Voltage Notching and Distribution Systems – Large Induction Motor Drive

Published by Electrotek Concepts, Inc., PQSoft Case Study: Voltage Notching and Distribution Systems – Large Induction Motor Drive, Document ID: PQS0320, Date: July 18, 2003. Abstract: This case describes voltage notching associated with large adjustable speed drives. The notching is a normal characteristic of a phase-controlled rectifier but this paper illustrates problems that can occur onContinue reading “Voltage Notching and Distribution Systems – Large Induction Motor Drive”

PQ Investigation at a Battery Facility

Published by Electrotek Concepts, Inc., PQSoft Case Study: PQ Investigation at a Battery Facility, Document ID: PQS0402, Date: March 30, 2004. Abstract: This case study presents the results of a power quality investigation at a battery manufacturing facility. The facility had been experiencing a high rate of motor failures and was experiencing problems with its computerContinue reading “PQ Investigation at a Battery Facility”

Harmonics & Waveform Measurements Low Pass Filter & Sine Wave Filter for a 460V 100HP AC Motor with VFD

Published by Dranetz™ Technologies, Inc., Case Study, Website: dranetz.com. This case study was submitted by Ing. Leopoldo Martínez Basulto, Dranetz México. INTRODUCTION Harmonics are an important PQ issue today. Variable Frequency Drives (VFD), Uninterruptible Power Systems (UPS), computers, LED lighting, electronic ballasts, etc. are widely used in all kinds of facilities. It is well knownContinue reading “Harmonics & Waveform Measurements Low Pass Filter & Sine Wave Filter for a 460V 100HP AC Motor with VFD”

Placement and Sizing Optimization for DER Based on Single Phase Wind Turbine Generator in Distribution System Using HPSO

Published by Miss Panaya Sudta, Customer Relation Division, Provincial Electricity Authority, Email: nica_pny@hotmail.com Prof. Weerakorn Ongsakul, Energy Field of Study (FoS) of SERD, Asian Institute of Technology, Email: ongsakul@gmail.com Mr.Patiphan Thupphae, Energy Field of Study (FoS) of SERD, Asian Institute of Technology, Email: sunpatiparn@gmail.com Mr. Wichian Khumwong, Customer Relation Division, Provincial Electricity Authority, Email: wichian.k@gmail.comcomContinue reading “Placement and Sizing Optimization for DER Based on Single Phase Wind Turbine Generator in Distribution System Using HPSO”

The Smart on-field Meter Accuracy Investigation System for PEA 4.0

Published by Mr.Chitchai Srithapon, Customer Service Division, Provincial Electricity Authority, Email: chichai.sri@pea.co.th Mr.Pichai Thaniwan, Customer Service Division, Provincial Electricity Authority, Email: phichi.tha08@gmail.com Mr.Weerachat Khuleedee, Customer Service Division, Provincial Electricity Authority, Email: weerachat_ee35@hotmail.com Mr.Wacharapong Rakapong, Information System Division, Provincial Electricity Authority, Email: nidpea@gmail.com Published in PEACON & INNOVATION 2018 “PEA4.0 : Road to Digital Utility” 24th–Continue reading “The Smart on-field Meter Accuracy Investigation System for PEA 4.0”