G K Agrawal

Low Power Factor Correction, Its Causes, How and Why to Correct PF

G K Agrawal / AC supply, blog, Electrical, Power factor, Power system / 25/12/2022

In this post, I discuss: why “power factor correction” and its method, the causes and problems of low power factor, and how to correct power factor and its advantages. You will also learn fixed step type and continuous variable PF correction, the need for fast correction (SVC), and the need for an extra inductor.

There are many more advantages of power factor correction discussed in this article.

I will also discuss extra knowledge as per my industry experience of designing such control equipment. The power factor correction is done for many reasons.

Low Power Factor Correction, Its Causes, How and Why to Correct PF Read More »

How to use an open circuit CT Transformer

G K Agrawal / blog, Electrical, Electrical transformer / 12/12/2022

In this post, I explain, how to use a CT transformer (current transformer) with an open circuit secondary under certain conditions with a few examples. I will also explain, why high voltage comes in an open circuit, voltage limiting factors, electrical and flux equivalent circuit of the open circuit CT.

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Difference between CT and PT Transformers

G K Agrawal / blog, Electrical, Electrical transformer / 07/12/2022

In this post, you will learn the various differences between CT and PT transformers like functions, inputs, outputs, connections, construction, short circuit, open circuit, accuracy, etc.

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How the Current Transformer works | CT burden calculation

G K Agrawal / blog, Electrical, Electrical transformer / 30/11/2022

You will learn in this post, what is and how the current transformer works. Also learn loading resistor burden calculation, applications, typical specifications, types, tests, and also extra knowldge as per my experience etc.

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How the SMPS Transformer works – concept

G K Agrawal / blog, Electrical, Electrical transformer / 22/11/2022

I will explain about the SMPS switching transformer working concept. I will also discuss the core type, losses, Litz winding type, voltage and flux generation sequence, and reason for the small size and less weight of the SMPS transformer and differences from the power transformer.

I will also tell about using 1952 numbers of transformers used in one of our projects.

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What is a Potential Transformer (PT), and its Use

G K Agrawal / blog, Electrical, Electrical transformer / 17/11/2022

You will learn, what is a potential transformer, and also its applications. specifications and the test conducted on the potential transformer (PT). I will tell some extra knowledge as per my experience. I will also explain about capacitove voltage transforme ralso.

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