Published by Electrotek Concepts, Inc., PQSoft Case Study: General Reference – Modeling for Transient Analysis, Document ID: PQS0316, Date: July 18, 2003. Abstract: Transient voltage and currents are a result of sudden changes within the electric power system. Opening or closing of a switch or circuit breaker causes a change in circuit configuration and the associatedContinue reading “General Reference – Modeling for Transient Analysis”
Category Archives: App Notes / White Papers
Program on Technology Innovation: A History of Power Quality
Addressing Evolving Customer Technologies and an Increasingly Complex Power Grid Published by Electric Power Research Institute (EPRI), Inc. Document ID: 3002022396, March 2022. Introduction Over the past 50 years, the concept of power quality (PQ) has evolved from being an unknown and undefined concept to being understood as a fundamental component of grid performance, utilityContinue reading “Program on Technology Innovation: A History of Power Quality”
ITI (CBEMA) Curve Application Note
Published by Information Technology Industry Council (ITI), 1250 Eye Street NW Suite 200, Washington DC 20005, 202-737-8888, http://www.itic.org The ITI (CBEMA) Curve, included within this Application Note, is published by Technical Committee 3 (TC3) of the Information Technology Industry Council (ITI, formerly known as the Computer & Business Equipment Manufacturers Association). It is available atContinue reading “ITI (CBEMA) Curve Application Note”
Paralleling Dissimilar Generators: Part 2 – Compatible Alternators
Published by By Gary Olson, Director of Technical Support, Cummins Power Generation, Power topic #9016 | Technical information from Cummins Power Generation – White Paper Paralleled alternators are compatible if they can operate in parallel without having damaging or disruptive neutral currents flowing between them. The magnitude of neutral current flow related to the dissimilarityContinue reading “Paralleling Dissimilar Generators: Part 2 – Compatible Alternators”
Technical Paper: Semiconductor Equipment Voltage Sag Immunity Improvements
This Technical Paper Written by: Mark Stephens, P.E. Engineering Manager, EPRI PEAC Corporation, Semiconductor & Industrial PQ Group, EPRI PEAC Corporation, 942 Corridor Park Boulevard Knoxville, Tennessee 37932, Phone: (865)-218-8022, Fax: (865)-218-8001 mstephens@epri-peac.com, http://www.f47testing.com, June 13th, 2002 Introduction The end of the report read…“…Imagine a time in the not so distant future when the industryContinue reading “Technical Paper: Semiconductor Equipment Voltage Sag Immunity Improvements”
K-Factor Defined
Published by Xitron Technologies, Manufacturers of Engineering and Production Test Equipment, An ISO 9001:2000 registered company, AN102 Application Note. In today’s industrial workplace, the proliferation of solid state devices (lighting ballasts, motor drives and controls, communications equipment, and other DC-powered loads) has created a major problem for specifying engineers, contractors and building owners. The non-linearContinue reading “K-Factor Defined”
Variable Frequency Drive (VFD) Testing Applications
Published by Dranetz Technologies, Inc. VFD motor controls have become very popular for both retrofits and in new applications. They offer increased energy efficiency, potential for less motor wear, lower startup currents and more. Potential disadvantageous include producing harmonics and damaged motors if they are not controlled properly. VFD’s use a Pulse Width Modulated (PWM) voltageContinue reading “Variable Frequency Drive (VFD) Testing Applications”
Dranetz HDPQ Family Generator & Mission Critical Testing
Published by Dranetz Technologies, Inc. INTRODUCTION Data centers, hospitals, mission critical and other facilities rely on standby power. This is often generators that are ready to carry the load if there is an interruption in the primary power source. Such facilities often have UPS systems for a seamless transition to standby power, and to carry theContinue reading “Dranetz HDPQ Family Generator & Mission Critical Testing”
Strategies for Investigating Flicker
Published by Wayne LaFleur, Senior Engineer, Power Monitors, Inc. Email: wlafleur@powermonitors.com, Website: powermonitors.com, (800) 296-4120, February 2014. White Paper. ABSTRACT Investigating f licker issues with PMI recorders can be straightforward if the right data is collected, and analyzed with ProVision. By enabling and examining Pst and IFL flicker data, in addition to RMS voltage andContinue reading “Strategies for Investigating Flicker”
Energy Platform EP1 Trend Data Time Interval
Published by Terry Chandler, Director of Engineering, Power Quality (Thailand) Co., Ltd. Emails: terryc@powerquality.co.th,TChandler@Dranetz.com The EP1 is Energy Platform has a slightly different time interval for the trended data from the other Dranetz portable products. The PX/PG/PV have a minimum intervals of 1 second, 10 seconds and 1 minute. Note: There are some limitations onContinue reading “Energy Platform EP1 Trend Data Time Interval”
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