Industrial application of Synchronous motors

July 14th, 2016 | Make a comment | Posted in Energy Efficiency - motors
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D.Ros is so crazy about motors that everytime we receive an article from him, we know what he’ll be about. Despite of this, his material is always very interesting and well explained.

For our pleasure, here’s the latest article from him. He chose to make an insight to typical start-up profiles… Let’s read!

Understanding the basics of how synchronous motors work will surely help you take good decisions upon whether or not to use this type of motor, if you rather get a brushless exciter or not, and choose the right start-up method suitable for your application and power system’s availability.

The next thing you should get to know is how a typical start-up looks like, what problems you might encounter and what are the possible solutions to them.

Normal reactor assisted start-up profile of synchronous motors

Figure 1: Normal reactor assisted start-up profile of a synchronous motor

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Reasons for Load Shedding

July 11th, 2016 | Make a comment | Posted in Electrical Safety
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Today we’re glad to show you this article by A.N, our fellow member of the community. You still can send us your essays by mail. Enjoy!

Load shedding in electrical supply networks is a controlled process in which the utility company drops off part of the load in order to balance the demand and the generated capacity. This is often done whenever there is excess load on the system. In standby generators, it involves disconnecting or shedding some circuits to prevent an overload condition.

turning off some loads

Figure 1: turning off some loads | image:

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

July 7th, 2016 | Make a 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.

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Power factor correction of networks (work experience)

July 4th, 2016 | Make a comment | Posted in Power quality
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electrical-engineer-testimonyIn last month newsletter (newsletter#79), we introduced you to Mile, one of the members of the community.

From then on, he kindly decided to help providing the blog with material, and his 1st attempt is about power factor correction of networks.

Tell this young man from Macedonia what you think about it below!
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How to Select a Reverse Power Relay

July 1st, 2016 | Make a comment | Posted in Electrical distribution
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megaphone-blueHi everybody, it’s Steven Mill.

Last time, I’ve read the article about Reverse power relay basics published in this blog. It was very interesting and well-written so I thought I would give my contribution too about this topic.

I chose to write about selecting a reverse power relay and I hope it will help you all!
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