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Welcome To Our Power Quality Blog

Power Quality Blog has been created by Power Quality (Thailand) Co., Ltd. to share knowledge, and experience in solving power quality challenges. We focus on a wide range of power quality related issues, such as harmonics, transients, voltage variations, flicker, poor power factor, voltage sags and swells, and unbalance electrical loads etc.

PQ Blog also includes case studies, power standards, power protection, PQ meters, PQ technologies, PQSynergy™ papers and much more.

Latest from the Blog

Electrical Over-Stress (EOS)

Published by Cypress Perform, Cypress Semiconductor Corporation, website: cypress.com Electrical Over-Stress (EOS) Electrical Over-Stress (EOS) is a term/acronym used to describe the thermal damage that may occur when an electronic device is subjected to a current or voltage that is beyond the specification limits of the device.

Electrotek® Concepts | PQView®

IEC 61850 on PQView 4!

Utilities know that merging data from devices within several substations, or even across a whole system, can get complicated—especially when you have devices from a variety of vendors. That’s why they know that IEC 61850 is such a powerful method of integrating those communications. We at Electrotek have been hard at work to bring you the very best of what you need, and now, we are excited to announce the next big chapter in PQView 4 capabilities: IEC 61850 communications!

Here’s how it works:

IEC 61850 is an international standard for TCP/IP networked communications with Intelligent Electronic Devices (IED’s) in substations. IEC 61850 uses object-oriented methods that allow for data to be shared between IEDs and software systems using standard communication methods. By using IEC 61850, PQView can acquire real-time and recorded data from IEDs. Data is stored in the PQView database alongside all other data acquired by PQView’s PQDMS. Unlike traditional polled devices, IEDs send measured values to PQView via IEC 61850 Reports.

For more information on PQView

500kV Disconnect Switch…

High – Voltage Disconnect Switch Arcing

Captured by Neil Brady, the maintenance foreman of the 500 kV Eldorado Substation near Boulder City, Nevada at the time of the event.

Source: http://www.capturedlightning.com/frames/longarc.htm#500_kV_Switch

Electrical Wire Sparking…

Image (Gif) Credit by Andrew Liszewski, July 10th, 2017. Source: Spoild

Electrical fire on street, Wellington road occurred on June 24th, 2017 in London, Ontario, Canada. Credit by ViralHog.

Video source: https://www.youtube.com/watch?v=4ya5O0AQXGo