Major Substation Equipment – Learn the Purpose, Cost, and Lead Time to Procure

Are you fascinated by the equipment inside the substation? Use this resource to learn about major substation equipment.

Start with the power transformer image below.

Think you have this covered? Test your knowledge – attempt the quiz at the end of this post.

Major Substation Equipment - Learn the Purpose, Cost, and Lead Time to Procure 1

Substation Major Equipment

It’s only stupid-simple, let’s begin.

You are building an interconnect station, tying wind farm generation to the power grid. At the substation, the sources are tied through a tie-breaker. Which device would you install to make sure the sources are synchronized?
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Which combination of devices would you use to implement power line carrier?
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An industrial facility is plagued with voltage flicker (due to harmonics) and poor power factor at the service entrance. Which device would you install to fix both issues?
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What’s the purpose of a conventional power transformer?
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A transformer develops an internal fault. Which device would you install on the transformer high-side to interrupt fault current?
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For which event should a surge arrester operate? Check all that apply.
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In a distribution substation, the available ground-fault current on the low side of the step-down transformer is excessive, over-dutying the switching equipment. What is your cost-effective solution to reducing the fault current?
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Your score is

The average score is 46%


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