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.
Metal oxide varistor (MOV) finds use in many electrical and electronic equipment. I will explain in detail, that what is metal oxide varistor and how to use it.
I also will explain, from where the voltage spike comes in the electrical cccircuits with the help of various circuit diagrams.
What is Metal Oxide Varistor (MOV), and its use Read More »
The type of AC or DC motor used in a locomotive train engine depends on the technology available, and technical advantages. And it also depends on the cost of running the train.
I also will discuss, reason for the using AC or DC motor in the train engine.
Which Motor (AC, DC) is Used in a Train Engine and Why Read More »
I discuss, an arc fault detection device (AFDD) or arc fault circuit interrupter (AFCI). You also learn some functions in AFCI AFDD breaker like flame formation, electric current signature sensor, algorithm concept of measurement, a block diagram of AFDD, causes of arc fault, and types of arc faults.
What is AFCI or AFDD Breaker, and How it works Read More »
I will explain, AC or DC, which is more dangerous in this post. There are many factors that decide the intensity of electric shock on the human body. These other factors also play a very important role in addition to DC or dangerous AC frequency.
I will explain all these like AC or DC, which is more dangerous frequency to the human body in this post. Further, I also will discuss in detail the other factors affecting the intensity of electrical shock to the human body.
AC or DC current, which is More Dangerous to the human body Read More »
In this post, learn, that what is an electrical relay, and how it works. What are “NO” and “NC” contacts, contact working and the applications of the relay. I will also discuss the problem of low voltage in relay and voltage currentr rating of the relay.
What is a Relay, How an Electrical Relay works, its applications Read More »
In this post, I will explain what is an optocoupler, and how an optocoupler works. I also will explain the applications, types, and a circuit diagram explanation with signal, and also experience-based knowledge of the optoisolator.
What is an Optocoupler, and how does it work Read More »
