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
Category Archives: Power Quality
Power Quality in Metering
Published by Ming T. Cheng, Directory of Asian Operations, Power Metrix.
Power Quality Issues in UPS (India)
Published by A.D. Thirumoorthy, Member APQI Coimbatore, India.
Frequency Measurements & Data Recorded of PQ Instruments that meet the IEC 61000-4-30 Class A
Published by Terry Chandler, Director of Engineering, Power Quality Thailand LTD/Power Quality Inc., USA. E-mail: terryc@powerquality.org, terryc@powerquality.co.th An example is the Dranetz HDPQ family, the PX-5 family and the 61K family. The IEC standard for frequency measurement calculation and accuracy is This specifies the time of the reference channel is measured for 10 seconds. That value isContinue reading “Frequency Measurements & Data Recorded of PQ Instruments that meet the IEC 61000-4-30 Class A”
Power Quality Issues in Grid Connected Wind Farms (India)
Published by A.D. Thirumoorthy, Energy Consultant Coimbatore, India.
Power Quality Monitoring System at the Consolidated Edison Company of New York
Published by Terry Chandler, Director of Engineering, Power Quality Thailand LTD/Power Quality Inc., USA. E-mail: terryc@powerquality.org Brian Todd, Global Vice President of Sales for Dranetz Technologies, Inc. and General Manager at Electrotek Concepts, Inc. E-mail: btodd@electrotek.com Kevin Kittredge, Senior Power Systems Engineer, Electrotek Concepts, Inc. E-mail: kkittredge@electrotek.com
SAIFI SARFI & SARFI (X) Indexes for Power Reliability & Power Quality
Published by Terry Chandler, Director of Engineering, Power Quality Thailand LTD/Power Quality Inc., USA. E-mail: terryc@powerquality.org
Characterizing Voltage Sag Waveforms using IEEE P1159.2 Algorithms
Published by Dan Sabin, Monitoring System Applications Architect, Electrotek.
Dranetz Portable Instruments Power Visa & HDPQ Visa using Dran-View 7 Software to View the Waveforms & Correct A CT Connection Error
Case 1. Display waveforms of voltage, current and Power before, during and after an event. Case 2. Display waveforms of voltage, current and calculate the power waveform from the data of any waveforms recorded by the instrument. HDPQ waveforms of Voltage, current and Power from 10 cycles of waveform data. Case 3. Display harmonicContinue reading “Dranetz Portable Instruments Power Visa & HDPQ Visa using Dran-View 7 Software to View the Waveforms & Correct A CT Connection Error”
Active Harmonic Mitigation – What the Manufacturers Don’t Tell You!
Published by Tony Hoevenaars, PEng., MIRUS International Inc.
