Author Archives: PQBlog

Using Portable/Emergency Generators Safely

Published by U.S. Department of Energy (DOE), Office of Cybersecurity, Energy Security, and Emergency Response, Website: energy.gov Power outages are common during disasters, and they can last for several days. You can reduce your losses and speed the recovery process with an emergency generator. Portable generators made for household use can provide temporary power to a fewContinue reading “Using Portable/Emergency Generators Safely”

Customer Induction Motor Starting Evaluation

Published by Electrotek Concepts, Inc., PQSoft Case Study: Customer Induction Motor Starting Evaluation, Document ID: PQS0904, Date: October 15, 2009. Abstract: This case study shows the results for simulations completed to determine the severity of an undervoltage condition during starting of a customer induction motor starting. The simulations for the case were completed using the PSCADContinue reading “Customer Induction Motor Starting Evaluation”

In Case of a Power Outage

Published by Silicon Valley Power® (SVP), City of Santa Clara, California, USA. Power outages are inconvenient for everyone, and we at Silicon Valley Power (SVP) do everything we can to reliably maintain your power. When we do have an outage, SVP is dedicated to resolving the problem as quickly as possible. We take pride inContinue reading “In Case of a Power Outage”

EMC for 2 to 150 kHz: A Proposal for Emission and Immunity of Equipment including Power-Line Communication

Published by Anders Larsson and Math Bollen, ELFORSK, Elforsk rapport 09:29, October 2008 Summary The frequency range from 2 to 150 kHz is not sufficiently covered in international standards. The contrast with the frequency range below 2 kHz is striking. There have traditionally been good reasons to emphasize on the lower frequency range, where theContinue reading “EMC for 2 to 150 kHz: A Proposal for Emission and Immunity of Equipment including Power-Line Communication”

Harmonic Issues Related to Power Factor Correction

Published by Electrotek Concepts, Inc., PQSoft Case Study: Harmonic Issues Related to Power Factor Correction, Document ID: PQS0604, Date: April 1, 2006. Abstract: Power factor correction is an important facet of power quality. Capacitors may be installed on customer systems to minimize charges for poor power factor on their electric bill. These installations may create problemsContinue reading “Harmonic Issues Related to Power Factor Correction”

Power Factor Correction – Estimating Financial Savings

Published by Electrotek Concepts, Inc., PQSoft Case Study: Power Factor Correction – Estimating Financial Savings, Document ID: PQS0601, Date: January 1, 2006. Abstract: Low power factor means that you are using a facility’s electrical system inefficiently. It can also cause equipment overloads, low voltage conditions, and greater line losses. Most importantly, low power factor can increaseContinue reading “Power Factor Correction – Estimating Financial Savings”

Transient Issues Related to Power Factor Correction

Published by Electrotek Concepts, Inc., PQSoft Case Study: Transient Issues Related to Power Factor Correction, Document ID: PQS0605, Date: April 1, 2006. Abstract: Power factor correction is an important facet of power quality. Capacitors may be installed on customer systems to minimize charges for poor power factor on their electric bill. These installations may create problemsContinue reading “Transient Issues Related to Power Factor Correction”

Power Factor Correction and Harmonic Control for dc Drive Loads

Published by Electrotek Concepts, Inc., PQSoft Case Study: Power Factor Correction and Harmonic Control for dc Drive Loads, Document ID: PQS0410, Date: December 31, 2004. Abstract: This case history describes the design of power factor correction and harmonic control equipment for loads at a plastic film manufacturing plant. Measurements were performed to characterize the harmonic generationContinue reading “Power Factor Correction and Harmonic Control for dc Drive Loads”

Wind Turbine Operation in Power Systems & Grid Connection Requirements

Published by K. B. Mohd. Umar Ansari1, Manjeet Singh2, Sandeep Kumar3 B.E (EEE), M.Tech (Electrical Power & Energy Systems), Ex- Engineer – GET, Tata Motors Pvt. Ltd., Sector 11,Udham Singh Nagar, Pantnagar, UK, India. 1B.Tech (EN), Ex-Electrical Engineer, Flowmore Limited, Sahibabad, Ghaziabad, U.P., India2B.Tech (EE), M.Tech (Power Systems*), Lecturer, Department of Electrical Engg, Sri RamSwaroopContinue reading “Wind Turbine Operation in Power Systems & Grid Connection Requirements”