Published by Electrotek Concepts, Inc., PQSoft Case Study: MG Set Provides Voltage Sag Support Voltage Sag Ride-Through, Document ID: PQS0412, Date: December 31, 2004. Abstract: Today’s high-tech computer and multi-media equipment require “clean” electric power protected against normal split-second voltage variations. A technology that has recently received much attention for providing this ride-through is the written-poleContinue reading “MG Set Provides Voltage Sag Support Voltage Sag Ride-Through”
Category Archives: Case Studies
Improving Equipment Ride Through Voltage Sag Evaluation
Published by Electrotek Concepts, Inc., PQSoft Case Study: Improving Equipment Ride Through Voltage Sag Evaluation, Document ID: PQS0405, Date: June 30, 2004. Abstract: Voltage variations, such as voltage sags and momentary interruptions are two of the most important power quality concerns for customers. Customers understand that interruptions cannot be completely prevented on the power system. However,Continue reading “Improving Equipment Ride Through Voltage Sag Evaluation”
Analysis of Power Quality Factors: A Case Study of Windhoek, Namibia
Published by Aldrin Mubiana, Michael Mutingi, Member, IAENG, Gideon Gope, Charles Mbohwa. Conference: Proceedings of the World Congress on Engineering and Computer Science 2016 Vol II WCECS 2016, October 19-21, 2016, San Francisco, USA. Abstract—Power quality (PQ) is concerned with control of harmonic distortions, voltage variations, voltage reductions, power interruptions and voltage surges. Enterprises devicesContinue reading “Analysis of Power Quality Factors: A Case Study of Windhoek, Namibia”
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”
Distribution Feeder Voltage Sag Evaluation
Published by Electrotek Concepts, Inc., PQSoft Case Study: Distribution Feeder Voltage Sag Evaluation, Document ID: PQS0905, Date: October 15, 2009. Abstract: This case study shows the results for simulations completed to evaluate the impact of a distribution feeder fault on the operation of a customer adjustable-speed drive during the resulting voltage sag and momentary interruption. TheContinue reading “Distribution Feeder Voltage Sag Evaluation”
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”
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”
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”
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