Blog by G K Agrawal
A few of the important technical blog posts are Neutral wire voltage, Power factor, Open circuit CT transformer, why 30 mA RCCB breaker, Motor type in train engine, AFCI AFDD breaker, and AC DC supply danger to humans.
You will learn the difference between power factor and reactive power in this post. We will discuss also active power, reactive power, apparent power, and power factor and also the formula of correlation between them with calculation and examples.
And also as usual extra knowledge based on my industrial design experience.
Power Factor and Reactive Power Difference Read More »
We use MCB and fuse in the electrical circuits for protecting the electrical circuits. But there are many differences between the MCB breaker and a fuse.
I will explain 17 differences between the MCB breaker and fuse.
17 differences between MCB breaker and Fuse Read More »
In this article, we will discuss the application of the autotransformer. As an autotransformer is small in size, cost, and weight, and also can provide variable voltage.
So both the step type and variac type of the autotransformer find use in home, industry, and high voltage labs.
Application of the Autotransformer – 8 uses Read More »
In this article, I explain the advantages and disadvantages of the Autotransformer (Auto-transformer).
I will also explain the disadvantage of the autotransformer during fault at the output and also due to damage in a winding.
Advantages and disadvantages of the Autotransformer Read More »
We will discuss the need, advantage, and use of neutral in a three-phase induction motor in the complex VVVF (Variable voltage variable frequency) drive system.
You will learn how the use of neutral in an induction motor can make fault finding easy and improve protection and the reliability of the system
Why use Neutral in three-phase induction motor in VVFD Read More »
In this post, you will learn the concept of the connections of the Zener diode in series and parallel. I explain the total voltage and power calculation in different combinations.
I will also explain the difference between theoretical and practical values of the voltage and current distribution, and also the total useful watts of the Zener didoes.
Zener Diodes in series and parallel connections, calculation Read More »
