Increasing the life of a transformer – How important is cooling?

May 26th, 2015 | Make a comment | Posted in Power quality
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If you’ve been following this blog for a long time, you know that we dealt with transformers a lot. This topic is interesting and much requested so we did our possible to add more publications about it.

Steven Mill, one of our active members, chose to talk about the role of cooling in the life of a transformer. You can check his essay below…


Copper loss or I2R is the main reason for the heat generated in an electrical power transformer. Though there are other losses such as hysteresis and eddy current losses which are also responsible for the heat generation, I2R is considered as the main factor.
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LV and MV Switchgears – How to inspect, test and measure?

May 21st, 2015 | Make a comment | Posted in Electrical Safety
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Eric S., one of the readers of the blog sent us an article in which he gives information on how to inspect, test and measure low and medium voltage switchgears. But first, he starts with few words on the importance of these checks and maintenance.

Enjoy and don’t forget you can send us your articles by mail.

Importance of routine checks and regular maintenance

If switchgears are installed in well ventilated, air-conditioned and clean environmental conditions, they do not require much maintenance.


Major inspections are needed and are done only during plant shut downs. These inspections include contact wear identification, checking on interlock operations, observing overload settings, size of the fuses employed, overheating and finally, checking if there is any dirt or corrosion in the switchgear components.

In case of medium voltage switchgears, more concentration should be placed on checking the protective devices, oil levels in the circuit breaker and contact distances of the vacuum bottles and see if they are as per the manufacturer’s specifications.
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Electrical Transformer Specialist – Career Story

May 19th, 2015 | Make a comment | Posted in Others
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Howdy! This week we received a testimony in our mailbox. It was signed “G.” and it is about this mysterious sender’s career as an american electrical transformer specialist. Hmm, interesting!

Check what he has to say below…

“As an electrical transformer specialist for a major gas company in the U.S, I have a critical role to play.
But before I move on to the job details, I will give you a little brief of my educational skills, so that you can get an idea as to what background is necessary to better perform in the role of an electrical transformer specialist.

Educational Background

Electrical Transformer Specialist1

Initially, I studied AS in Electromechanical Engineering from Bristol Community College and then went on to complete my BS in Electrical Engineering Technology from Roger Williams University.

I then later completed Masters in Management from Lesley College.
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8 top most advantages of automated power distribution

May 15th, 2015 | Make a comment | Posted in Electrical distribution
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We know that you appreciate when we publish “Top 10″ like articles, that’s why we post this Top 8 of the advantages of Automated Power Distribution. Enjoy!


Distribution automation is the kind of solution that most electric utilities are looking for, in order to face the following 3 main economic challenges:

  • Increasing cost of electricity generation
  • Increasing cost of maintenance
  • Poor customer service

Most electric utilities want to save costs and at the same time want to provide better services to their customers. This can only be achieved by updating their electric utilities to automated power distribution.

This will not only help them face the above mentioned economic challenges but will also help them gain a few more advantages.

Following are the eight top most advantages of using automated power distribution:
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Low Voltage Circuit Breakers – 4 Ways Of Securing Them

May 12th, 2015 | Make a comment | Posted in Electrical distribution
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As we all have learnt earlier, circuit breakers are generally used to safeguard electrical equipment from voltage spikes.

In this article, one of the member of the community Eric S. will discuss about the different methods that are used to secure low voltage circuit breakers in a typical setting.

You can also send us articles in our boxmail, we will publish it with great pleasure.


There are four standard ways of securing low voltage circuit breakers. They are:

  • Securing with the help of bolts
  • Securing by bolting circuit breakers to bus bar
  • Securing by stab locking breakers to bus or any other receptacle connection
  • Securing by mounting the breakers on din rail

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