Category Archives: Power Quality

Smart Grid

Published by SmartGrid.gov The Smart Grid Maybe you have heard of the Smart Grid on the news or from your energy provider. But not everyone knows what the grid is, let alone the Smart Grid. “The grid,” refers to the electric grid, a network of transmission lines, substations, transformers and more that deliver electricity fromContinue reading “Smart Grid”

Power Quality the Economic Challenge for Utilities & Users

Published by Terry Chandler, Director of Engineering, Power Quality Thailand LTD/Power Quality Inc., USA.E-mail: terryc@powerquality.org, terryc@powerquality.co.th Please feel free to leave a question in the comments section or contact Terry Chandler, terryc@powerquality.org, terryc@powerquality.co.th

Characterizing PQ values Power Quality Incidents

Published by Terry Chandler, Director of Engineering, Power Quality Thailand LTD/Power Quality Inc., USA. E-mail: terryc@powerquality.org, terryc@powerquality.co.th PQIncidentsTM A PQIncidenstTM occurs when one or more of the PQ parameters exceeds a specification or causes a problem for a load A PQIncidenstTM is comprised of one or more events A PQIncidentsTM is a definable point in time and powerContinue reading “Characterizing PQ values Power Quality Incidents”

The Effects of Changes to IEEE 519-1992 to 2014

Published by EATON, Powering Business Worldwide, Application Note AP040094EN, Effective November 2014 Introduction Recent changes have been made to IEEE 519. These revisions add clarity to the 1992 document as well as present new definitions, methods and recommendations. This brief summary of changes to IEEE 519 as it pertains to low voltage adjustable frequency drivesContinue reading “The Effects of Changes to IEEE 519-1992 to 2014”

Power Quality, Electronic Motor Drives, & Other Sensitive Loads

Published by Power Quality (Thailand) Co., Ltd. http://www.powerquality.co.th Classes of Sensitive Loads Electronic motor drives Computers Computerized equipment Automated machines that have PLC’s Automatic test equipment Electronic scales Electronic Motor Drives Types of drives Basic electrical operations Understanding electric motors DC drives AC drives Harmonics and power factor Future What is an Electronic Drive? TheContinue reading “Power Quality, Electronic Motor Drives, & Other Sensitive Loads”

Examples of Capabilities of Class A PQ Instruments vs Dranetz Instruments with Beyond Class A Capability

Published by Terry Chandler, Director of Engineering, Power Quality Thailand LTD/Power Quality Inc., USA. E-mail: terryc@powerquality.org, terryc@powerquality.co.th Please feel free to leave a question in the comments section or contact Terry Chandler, terryc@powerquality.org, terryc@powerquality.co.th

Energy Terminology

Glossary of terms are used within the Energy Sector Compliments of the Australian Energy Market Commission (AEMC) is an independent statutory body with two key roles: making and amending rules for the National Electricity Market, elements of the natural gas market and related retail markets; and providing strategic and operational advice to the COAG EnergyContinue reading “Energy Terminology”

Power Quality (PQ) & Quality of Supply (QOS)

Published by Terry Chandler, Director of Engineering, Power Quality Thailand LTD/Power Quality Inc., USA. E-mail: terryc@powerquality.org, terryc@powerquality.co.th Please feel free to leave a question in the comments section or contact Terry Chandler, terryc@powerquality.org, terryc@powerquality.co.th