Voltage Dip Immunity of Equipment and Installations

April 20, 2010

The CIGRE/CIRED/UIE  joint working group C4.110 report on “voltage dip immunity of equipment and installations” is out and can be downloaded from the following link: http://www.uie.org/node/401.

The report summarises on the following:

  • Aspects of voltage sag characteristics that equipment manufacturer should account for and test especially during equipment development;
  • Recommendations on equipment testing for voltage sags;
  • Industrial process immunity assessment to voltages sag problems;
  • Proposal for a classification of equipment based on voltage-dip immunity.

A small part of my doctoral research ‘process immunity to voltage sags’ work contributed to this report.


Alex McEahern: Use all Senses Except Taste to Identify PQ Problems

October 19, 2009

I have had an opportunity to meet Alex McEahern and talk to him during his visit and meeting with my PhD academic supervisor Prof. J V Milanovic. It was a pleasure talking and listening to his ideas, work and his company ‘Power Standards Lab’.

He developed an  interactive software teaching toy for young engineers like to me to understand and identify various  power quality problems. Links: Power Quality Teaching ToyOnline PQ tutorials; and Power Standard Lab.


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