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Volume 16, No. 4 Aug 2010 Impact of Green Power Distributed Generation Traditional interconnection methods to mitigate reliabillity issues.

Volume 16, No. 2 Mar/Apr 2010 Medium-Voltage Drives An overview of the common converter topologies and power semiconductor devices. 9 pages.

Volume 16, No. 2 Mar/Apr 2010 Performance of Common-Mode Chokes "The HF current that occurs in inverter-based drive systems can cause different parasitic phenomena."

Volume 16, No. 2 Mar/Apr 2010 Voltage Distortion on an Electrical Distribution System Harmonic Analysis of a midfrequency welder application for a metal working facility. 7 pages.

Volume 14, No. 6 Dec 2008 Safe and Sound Selection of low voltage motors for hazardous areas when supplied by frequency converter. 8 pages.

Volume 14, No. 6 Dec 2008 The Soft Starters Adjustable-speed systems for multiple megawatt rated motors. 11 pages.

Volume 14, No. 6 Dec 2008 Gas Up A liquified natural gas (LNG) production unit has been equipped with all-electric, variable-speed refrigeration compressor drivers. 10 pages.

Volume 14, No. 6 Dec 2008 The Testing Tools Preventing failures in low- and medium-voltage motors. 6 pages.

Volume 14, No. 6 Dec 2008 Small Power Generation Use of microturbines in remote isolated oil and gas facilities in Brazil. 7 pages.

Volume 14, No. 5 Sept/Oct 2008 The Jump Phenomena Investigation of a sudden overvoltage incident due to ferroresonance. 7 pages. "Ferroresonance is characterized by a sudden jump of voltage or current from one state to another."

Volume 14, No. 5 Sept/Oct 2008 Curb the Disturbance Comparison of methods for the mitigation of line current harmonics. 9 pages.

Volume 14, No. 4 Jul/Aug 2008 Gear Up Your Bearings A field case study on bearing damage in low-voltage ac induction motors. 9 pages. "Surveys suggest that 30% of motor failures operating across the line are related to bearing current."

Volume 14, No. 1 Jan/Feb 2008 Increased Efficiency Versus Increased Reliability A comparison of pre-EP Act, EP Act, and premium-efficient motors. 8 pages

Volume 14, No. 1 Jan/Feb 2008 Test Results for Energy Savings The impact of different lubrication oils on electric motor energy consumption. 6 pages.


Volume 13, No. 5 Sep/Oct 2007 The Power of Paper Effects of power quality distortions on electrical drives and transformer life in paper industries. 11 pages.

Volume 13, No. 2 Mar/Apr 2007 Synchronous Versus Induction Motors The basics of the construction and operation of fully synchronous motors. 10 pages.

Volume 13, No. 2 Mar/Apr 2007 Alternate ASDs Evaluation of the converter topologies suited for integrated motor drives. 13 pages.

Volume 13, No. 1 Jan/Feb 2007 Harmonic Convergence IEEE STD 519-1992 Helps define applicqation of harmonic limits.  7 Pages.

Volume 12, No. 6 Nov/Dec 2006 What Can Bearings Bear? The effects of IGBT devices on bearings. 8 pages.

Volume 12, No. 5 Oct 2006 Voltage Optimization  Achieving regulated, balanced voltage on 600 V distribution systems. "Solutions are required that will balance voltage, compensate for voltage variations, and attenuate voltage harmonics." 6 pages.

Volume 12, No. 5 Oct 2006 Capacitor Failure Analysis A troubleshooting case study of power factor capacitors. 11 pages.

Volume 12, No. 4 Jul/Aug 2006 Are Voltage Sags Destroying Equipment? Equipment failures caused by power quality disturbances. 10 pages.

Volume 12, No. 5 Jul/Aug 2006 Don't Lose Your Bearings Mitigation techniques for bearing currents in inverter-supplied drive systems. 10 pages.

Volume 12, No. 5 Jul/Aug 2006 Great Things in Dense Packages Packaging of variable-frequency drives in low-voltage switchgear and control gear. 9 pages.

Volume 12, No. 3 May/Jun 2006 Data Quality and Grounding Effective data quality and grounding designs consider the neutral, power grounding, bonding, shielding, and transient protection. 7 pages.

Volume 12, No. 3 May/Jun 2006 Management of Electric Motor Repair Improving facility-operating success by increasing reliabilty and lowering cost. 10 pages.

Volume 12, No. 1 Jan/Feb 2006 Petrochemical AC Induction Motor Standards A comparison between IEEE 841, API 541, and API 547. 8 pages.

Volume 12, No. 1 Jan/Feb 2006 Grounding Power Systems above 600 V The three-phase, four-wire, multigrounded distribution system has been seleted by most utilities in North America as the medium-voltage distribution system of choice, even though many utilities started with a three-wire, ungrounded delta system.

Volume 11, No. 5 Sept/Oct 2005 Distribution System Grounding Fundamentals An overview of relationships between currents, impedances and potentials that are encountered in the operation of multigrounded wye distribution systems. 10 pages.

Volume 11, No. 4 Jul/Aug 2005 Circuit Breaker Ratings Weighing high interrupting capacity and short-time current ratings. "A circuit breaker with a high IC - even if it is a low-voltage power circuit breaker - might not have a high short-time current rating. 5 pages.

Volume 9, No. 6 Nov/Dec 2003 Spot, Don't Bump The use of pulsewidth modulated adjustable-speed spotting drives is more effective than bumping large motors. 5 pages.

Volume 9, No. 6 Nov/Dec 2003 AC Induction Motor Specifications An update on currently available procedures and options. 7 pages.

Volume 9, No. 6 Nov/Dec 2003 Earthing or Grounding? A primer of methods for connecting to earth (ground). 13 pages.

 

 




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