Posts Tagged ‘the transformer’

Optimal design of transformer with lower losses

March 14th, 2019 | Make a comment | Posted in Energy Efficiency - building
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Convergence optimization process

Hi everybody, it’s Mile, your fellow electrical engineer from Macedonia. I’m glad to discuss about efficient transformer design with you all today and I hope you’ll like my essay.

Energy efficiency is closely connected to the living environment and is one of the most important questions today. According the laws and regulations, it is important to use energy efficient equipment in the power systems, because of the benefits like energy saving.


Quality Tests Performed on Insulated Oils

January 8th, 2019 | Make a comment | Posted in Power quality
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Hi there! We have discussed in a previous article the theory behind the electrical breakdown in liquids applied to insulated oils inside power transformers.

We found that contaminants inside the oil are the main cause for electrical breakdown inside oils, therefore since mineral oils degrade over time, it is expected to eventually see contaminants inside the oil.

In order to ensure that the quality of the oil remains within acceptable values, it is necessary to develop quality tests to determine if it is necessary to schedule maintenance or not.


How to specify dry type transformer

September 19th, 2016 | 1 Comment | Posted in Electrical distribution
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megaphone-blueHi everyone it’s Steven Mill. It’s been a while but I’m back with an article for my dear community. Today I want to deal with a basic: “how to specify dry type transformer”. Hope it will help some of you.

If you wonder how I get my articles published, well it’s easy as ABC cause I just propose an article by mail to the moderator team and after a quick review, they publish it :) So do not hesitate. The more the merrier!


Generally, specifying dry type transformer is same as specifying oil transformer. Yet, as dry type transformer is usually used in indoor and when apparent risk exist, there are some specifications we should consider.

Delta-Wye transformer: what happens during phase to phase fault?

July 7th, 2016 | 1 Comment | Posted in Electrical distribution
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Hello, it’s Steven Mill and today I want to tell you about a kinda technical subject. I’ll try to answer the following question:

“What happen in Delta-Wye transformer during phase to phase fault?”

I hope you will enjoy it! Remember that you can publish articles just like me, just send a mail to the great team.


Condition monitoring of the transformer (back to basics)

June 13th, 2016 | 2 Comments | Posted in Electrical distribution
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Hi this is Steven Mill! I’m back with a back to basics article about condition monitoring of the transformer. Hope it will help y’all!

The transformer is the most crucial part in electrical distribution system as it is the most expensive equipment in an electrical distribution system. If a transformer fail unexpectedly, not only it will affect the electrical supply but also it will cost you time and money. Hence it is important to detect early sign of fault to avoid power outage and extra cost.

In this article, we will discuss several techniques used to monitor the condition of the transformer. Those techniques are:

  1. Acoustic Monitoring
  2. Infrared Monitoring
  3. Dissolved Gas Analysis
  4. High Performance Liquid Chromatography
  5. Partial Discharge
  6. Frequency Response Analysis
  7. Power Factor
  8. Winding Resistance
  9. Core Insulation Resistance


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