Published by Electrotek Concepts, Inc., PQSoft Case Study: Modeling Ferroresonance in an Underground Distribution System, Document ID: PQS0610, Date: July 1, 2006. Abstract: The objective of this case study is to provide an overview of ferroresonance phenomena, its modeling aspects, and practical experience in recognizing, avoiding, and solving the problem. In particular, it will present symptomsContinue reading “Modeling Ferroresonance in an Underground Distribution System”
Category Archives: Case Studies
General Reference – Ferroresonance
Published by Electrotek Concepts, Inc., PQSoft Case Study: General Reference – Ferroresonance, Document ID: PQS0607, Date: July 1, 2006. Abstract: The term ferroresonance refers to a special kind of resonance that involves capacitor and iron-core inductance. The most common condition in which it causes disturbances is when the magnetizing impedance of a transformer is placed inContinue reading “General Reference – Ferroresonance”
Ferroresonance in an Underground Distribution System
Published by Electrotek Concepts, Inc., PQSoft Case Study: Ferroresonance in an Underground Distribution System, Document ID: PQS0710, Date: October 15, 2007. Abstract: The term ferroresonance refers to a special kind of resonance that involves capacitor and iron-core inductance. The most common condition in which it causes disturbances is when the magnetizing impedance of a transformer isContinue reading “Ferroresonance in an Underground Distribution System”
Ferroresonance Analysis – 25kV Single 5-Legged Core Transformer
Published by Electrotek Concepts, Inc., PQSoft Case Study: Ferroresonance Analysis – 25kV Single 5-Legged Core Transformer, Document ID: PQS0318, Date: July 18, 2002. Abstract: Ferroresonance is a concern for medium voltage underground systems. As part of an evaluation of the design of a new 25kV underground system, the potential for ferroresonance was analyzed. Ferroresonance requires aContinue reading “Ferroresonance Analysis – 25kV Single 5-Legged Core Transformer”
Monitoring and Analysis of Power Quality Issues in Distribution Network
– A Case Study Published by V. S. Jape#1, D. S. Bankar*2, Tejaswini Sarwade#3Electrical Engineering1, Electrical Engineering2, Electrical Engineering3, BVDU Pune1, BVDU Pune2, SPPU Pune31jape_swati@yahoo.co.in , 2dsbankar@bvucoep.edu.in , 3sarwadet@gmail.com Abstract — Tracking of system overall performance in phrases of Power Quality disturbances and its ill effects on distribution network is growing attention of application towardsContinue reading “Monitoring and Analysis of Power Quality Issues in Distribution Network”
Distribution Feeder Energizing
Published by Electrotek Concepts, Inc., PQSoft Case Study: Distribution Feeder Energizing, Document ID: PQS0711, Date: October 15, 2007. Abstract: The energization transients for distribution feeders are generally a combination of line energizing, transformer inrush, and load inrush. Line energizing transients typically decay to negligible values in about one-half cycle and they generally do not pose significantContinue reading “Distribution Feeder Energizing”
Voltage Sag Study – Application of a Static Transfer Switch
Published by Electrotek Concepts, Inc., PQSoft Case Study: Voltage Sag Study – Application of a Static Transfer Switch, Document ID: PQS0317, Date: July 18, 2003. Abstract: The purpose of this case study is to determine the feasibility of reducing process equipment disruptions due to utility voltage sags at a large industrial facility. The facility consistsContinue reading “Voltage Sag Study – Application of a Static Transfer Switch”
Voltage Sags and Their Impact on Industrial Customers
Published by Electrotek Concepts, Inc., PQSoft Case Study: Voltage Sags and Their Impact on Industrial Customers, Document ID: PQS0509, Date: September 30, 2005. Abstract: This case study describes the impact of voltage sags on a utility and one industrial customer. Several utility measures are presented to minimize the customer’s exposure to voltage sags. However, these measuresContinue reading “Voltage Sags and Their Impact on Industrial Customers”
Voltage Sag Study for a Distribution System Customer
Published by Electrotek Concepts, Inc., PQSoft Case Study: Voltage Sag Study for a Distribution System Customer, Document ID: PQS0308, Date: February 4, 2003. 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.Continue reading “Voltage Sag Study for a Distribution System Customer”
Voltage Sag Protection Using a Micro-SMES Device
Published by Electrotek Concepts, Inc., PQSoft Case Study: Voltage Sag Protection Using a Micro-SMES Device, Document ID: PQS0508, Date: September 30, 2005. Abstract: This case study describes the use of a micro superconducting magnetic energy storage (micro-SMES) device to improve power quality at a large semiconductor manufacturing facility by providing short term back-up power during utilityContinue reading “Voltage Sag Protection Using a Micro-SMES Device”
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