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Showing posts from September, 2022

What Happens When the Power Plant Blackout?

 Electricity is one of the basic needs of human beings in today’s life. Everything from our life is utilized by electrical energy that may be from health to fun and from transportation to traffic. As a result, social and economic influences are inevitable in an interrupted situation.  In normal operating conditions energy production systems enable electricity to reach consumers easily. Energy interruptions can occur due to disturbing currents.  When the power system is defined as a power grid collapse, which is partially or completely out of order, it is the most negative situation for power system operators. Blackout of Electrical Power Grid The electric power grid serves as a bridge between energy production plants and consumers. Energy supply and demand balance problems may occur at any time. These problems cause the voltage and frequency of the power grid to increase or decrease. Through these distortions, the power system is causing the power generation plants to be ...

Difference between KW and KVA

 In this post, we will learn the difference between KW and KVA in electrical engineering. Electrical power is a very important term which is commonly used in electrical circuits. When you are choosing or designing system, you first of all consider it’s power rating. In electrical power, two of the most general purpose terms are – KW and KVA. KVA is usually heard in generators and transformers. But, it is also used in many other types of electrical devices. Both these terms are power ratings used in every measuring the current characteristics. They are common electrical power abbreviations. In this post, we will see the difference between KW and KVA. Difference between KW and KVA KW stands for Kilowatts and KVA stands for Kilo Volts Ampere. KW is the amount of power that is converted into a useful output. Therefore, KW is usually also known as actual power or working power. KVA is the measure of apparent power. Basically, it gives an indication of how much total input power is being...

Career Scope in Civil Engineering

 In this post, we will discuss some future career opportunities in civil engineering. Engineering is a very vast field and has many branches for students to pursue their career in. Some courses are rare, some are very common. But, engineering finds it’s value in day to day life and it is impossible to work in an environment without engineers. There are many engineering fields where an under graduate can look to develop his career in. One such field is civil engineering. Career Scope in Civil Engineering Construction is a very basic requirement in any field. Be it any building, industry, highway or any commercial complex; good construction knowledge is a must. There are many challenges in this field; because any lag in construction can endanger the lives of people using it. And as the civilization is growing with times and recent advances in construction technology, this engineering field will always remain in demand. Not only for living purposes; but today, builders are looking for...

What is Eddy Current and Eddy Current Loss?

 Today in this article, we will learn about Eddy Current Loss which is widely used by Electrical as well as Instrumentation Engineers. Eddy Current Loss is one of the most important and interesting concepts. What is Eddy Current? When any magnetic material comes under the magnetic field generated by an alternating current, an emf is induced in the core material. The law which supports this statement is Faraday’s Law of Electromagnetic Induction. All magnetic materials have electrical conducting properties and the induced emf in the magnetic material causes the current to flow in the magnetic material in a specific direction. This current circulates within the magnetic material. The circulating current caused by Induced EMF is termed as Eddy Current. What is Eddy Current Loss? As Eddy current exists, heat loss will also definitely occur. The heat loss which is caused by the eddy currents in the magnetic material is termed as eddy current loss. Lenz’s law describes about the eddy cur...

What is a Laser Sensor? Principle

 A laser sensor is a very important technique used in electronics. As the name implies, it is a sensor that uses laser light or rays for sensing an object. It makes optics and photo electricity into pictures for working. As a transducer, it converts light energy into electrical energy. It is used in many industrial automation applications. In this post, we will the concept of a laser sensor. What is a Laser Sensor? A laser is a focused beam of light. So, this sensor emits laser light in a small bright dot form. This beam is very fine and provides a great level of accuracy. Laser light is emitted from the sensor to the object which is to be sensed. Light is reflected from the object back to the sensor. The sensor has an internal digital circuit that uses signal processing, to study light behavior. That means, it calculates the time taken for the light to emit and then reflect back to the receiver. And as the laser light emission speed is fixed, it calculates the distance of the obje...

What is IO-Link in Smart Manufacturing?

 In this post, we will learn the concept of IO-Link in smart manufacturing. Four Generations of Automation Currently, in industrial automation, the fourth generation of technology is evolving and being used. There are four generations of automation. The first revolution (1.0) dealt with shifting work from manual labor to systems working by steam-powered or water-powered engines and other machine tools. The second revolution (2.0) involved the use of steel and electricity in industries. Due to electrification, a huge amount of efficiency was increased and systems became more reliable. During this phase, production in assembly lines was started. In the third revolution (3.0), the use of computers, PLCs, robotics, digital automation, and networks played a bigger role in increasing and controlling production to a great extent. Now, the fourth revolution (4.0) has taken the third generation to a new level through the use of IoT (Internet of Things), cyber security, real-time data access...

What is a Photoelectric Sensor?

 In this post, we will learn the working principle of a photoelectric sensor, and the types, and features of these sensors. The photoelectric sensor is a very important technology used in instrumentation. It makes optics and photo electricity into picture for working. As a transducer, it converts light energy into electrical energy. It is used in many industrial automation applications. In this post, we will see the concept of a photoelectric sensor. What is a Photoelectric Sensor? A photoelectric sensor emits light from the transmitter, which consists of a light-emitting element. A receiver at the other end will detect this light beam. When this emitted light is cut by any object in between, the light beam intensity received at the receiver changes. The light intensity is continuously processed and converted into an electrical output. As the intensity changes, the electric output changes. This electrical output is then fed to any circuit and shows whether any object has passed bet...

Features of Scada Which are Must in an IoT System

 In this post, we will learn the features of SCADA which are a must in an IoT system. You are working on an industrial automation project and you will surely require a SCADA for that. Many times, we get confused as to what is the right SCADA that needs to be chosen for an application. Because there are many factors involved and ignoring even any one of them will surely cause a hurdle in the performance. You have set your machine mechanically and electrically; but if you have chosen the wrong SCADA for the same, then the design is of no use. So, it is important to select the right SCADA for the application, and for that, it is necessary to understand the various criteria involved in it. Features of Scada in IoT System One thing to note is that in this time of the fourth industrial revolution, there are some general features of SCADA that must be considered when you are choosing the right system. It is wrong that if you are provided with all the basic features, then you have selected...