Beware Rotation Issues on Transformers

Published by Tom Shaughnessy, Shaughnessy Consulting Services 208 Jasper Way, San Marcos, CA 92078 408-666-4009 Background Phase rotation is something that contractors and electricians routinely check during construction and installation of motors and UPS systems. In facilities with only one service, seldom does a rotation change require utility involvement. However, complications can and do ariseContinue reading “Beware Rotation Issues on Transformers”

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”

DranXperT

New Portable Power Logger + PQ Detector! Introducing DranXperT – a new portable, low cost, power logger and PQ detector from Dranetz. DranXperT is two products in one: Accurate, 3 phase, bi-directional power/energy logger PQ detector with 1/2 cycle resolution to identify and record common PQ issues such as sags/dips, swells, and interruptions, as well as changesContinue reading “DranXperT”