Published by Ponemon Institute LLC, December 2013. Ponemon Institute© Research Report is Sponsored by Emerson Network Power. Part 1. Executive Summary Ponemon Institute and Emerson Network Power are pleased to present the results of the 2013 Cost of Data Center Outages. First conducted in 2010, the purpose of this benchmark study is to determine theContinue reading “2013 Cost of Data Center Outages”
Category Archives: Case Studies
Beware Rotation Issues on Transformers
Published by Tom Shaughnessy, Shaughnessy Consulting Services 208 Jasper Way, San Marcos, CA 92078 408-666-4009 Background Phase rotation is something that contractors and electricians routinely check during construction and installation of motors and UPS systems. In facilities with only one service, seldom does a rotation change require utility involvement. However, complications can and do ariseContinue reading “Beware Rotation Issues on Transformers”
A PQ Case Study: At A Quartz Tube Factory in Wuxi China
Published by Qianlu Yan, Vice General Manager, Beijing Joint Harvest Science & Technology Co., Ltd. Terry Chandler, Director of Engineering, Power Quality Thailand LTD/Power Quality Inc., USA. E-mail: terryc@powerquality.org
Effect of Harmonics from DC Arc Furnace on 115kV Capacitor
Published by Phongphat Waraphok, Provincial Electricity Authority (PEA), Thailand.
The Challenges of Harmonic Measurements to Identify the Source of Harmonic Distortion in a Network
Published by Terry Chandler, A Power Quality Practitioner ™ for 30 years, Director of Engineering Power Quality Thailand LTD/Power Quality Inc. USA,Consultant for Dranetz Corporation USA (Asia business unit General manager) Harmonics defined by multiple standards around the world. IEC 61000-4-7 Class I defines harmonics and how to measure them. IEEE 519-2014 defines harmonic limits.Continue reading “The Challenges of Harmonic Measurements to Identify the Source of Harmonic Distortion in a Network”
Power Quality Causes & Effects with Biomass Power Plant
Published by Danaisak Tangsakha, Provincial Electricity Authority (PEA), Thailand.
Solar Plant in Thailand & its Impact on Power Quality
Published by Panida Boonyaritdachochai, Power Quality Engineer, Power Quality (Thailand) Co., Ltd.
The Study of Medium Voltage Source Change Effect to Voltage Sag in Low Voltage Customer in Distribution System
Published by Nat Songkram, Power Quality Section, Provincial Electricity Authority (PEA), Thailand.
Energy Usage Report for A Small Office Facility
Published by Thaweesak Aranchot, Electrical Engineer, Power Quality (Thailand) Co., Ltd. Plan Measure actual usage of each load for recording a consumption. Then determine a way to reduce the usage without impacting a business efficiency Investigate the actual data comparing with Electricity bill Introduction The energy consumption at PQT was studied to determine\how much energyContinue reading “Energy Usage Report for A Small Office Facility”
Electric Vehicle Charger
Published by Terry Chandler, Director of Engineer, Power Quality Inc. Power Quality study for EV charger post• Manufacturer of EV has experienced several internal battery charger failures in new EV’s• 2 sites, 1 in Arizona USA, 1 in Seoul, Korea. The plan for USA site and Korea site• Monitor the voltage quality supplying the chargerContinue reading “Electric Vehicle Charger”
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