Archive for the ‘Electrical distribution’ Category

AC aircraft brushless generators with constant speed drive unit

February 6th, 2018 | 1 Comment | Posted in Electrical distribution

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As Milan talked earlier, aircraft generators are essential part of aircraft electrical system. Briefly, he mentioned two main types of AC generators, one is constant frequency and another is variable frequency generators.

Now, he’s going to dive deeply in working principle of one most common generator – brushless generator.

Standard generators are bitten from brushless

Classic use of brushes and slip rings for passing excitation current to AC windings made huge problems due to brush consumption and during the time rotating surface make traces on rotor of generator. Also, power that is conveyed is smaller that in brushless type.
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Circuit breaker condition monitoring function

January 8th, 2018 | 1 Comment | Posted in Electrical distribution

Another article from AHand about the SSCBR function.
If you want to participate in the blog and see your work published in our blog followed by thousands members of the Electrical Engineering Community, feel free to send us a mail.

circuit-breaker-condition-monitoring-SSCBR

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Medium voltage switchgear testing principles (mechanical tests)

January 3rd, 2018 | 1 Comment | Posted in Electrical distribution

Happy New Year to you all! We hope that this year will be full of sharings, news and knowledge in the Electrical Engineering Community.

Let’s start with this nice article by AHand a member of the community. Last time he told us about visual inspection and functional tests which are basic MV switchgear testing principles. Today he’s back with another type of testing: mechanical tests.

Figure 1 Operator switching the switch-disconnector manually during site acceptance tests.

Figure 1 Operator switching the switch-disconnector manually during site acceptance tests.

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Medium voltage switchgear testing principles (visual inspection)

November 23rd, 2017 | Make a comment | Posted in Electrical distribution

AHand is an electrical engineer working for a company that integrates solar photovoltaic systems as a temporary job until he starts his PhD. This week, he sent us a nice article focusing on the visual inspection of Medium voltage switchgear during testing phase.

Check his work below and send us a mail if you want your articles to be published in this blog.

medium voltage switchgear testing

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Residual Current Device & Residual Current Circuit Breaker

October 16th, 2017 | Make a comment | Posted in Electrical distribution

megaphone-yellowIt’s been a longtime since Andrei hasn’t published an article for the Electrical Engineering Community Blog. Here’s his participation!

What is Residual Current Device & Residual Current Circuit Breaker and where to use it?

Let’s read his article and remember that you can also publish debates, equipment reviews, articles, essays or testimonies/career stories. Just send us a mail.

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