TILI Automation

 Electricity is a very basic need in our day-to-day life. In today’s world, it is almost impossible to survive without electricity; as almost all devices from a small fan to a PC to an AC work with electricity. So, even a small amount of interruption for some period of time can hamper our lives. We get power supply from the primary source, which is directly from electrical power distribution grids. This is called a mains power supply. But, for backup purposes, in case of mains power failure, other secondary sources are used like diesel generators, UPS, or inverters. Related to both of these, we will learn about an important device that is used for power supplies – auto changeover switch. In this post, we will learn the concept of an auto changeover switch. What is an Auto Changeover Switch? Suppose you have two sources of electricity – primary and secondary. Earlier, when the mains power supply went off, the operator used to go and manually turn on the secondary source power supply...

 In this post, we will learn the reason behind the use of a capacitor in a fan. Ceiling fan or table fan is one of the most commonly used devices everywhere. It is almost impossible to survive without a fan in an area where there is no natural ventilation or air conditioning. So, it is important to understand the importance of a fan. You must have heard that a capacitor is one of the most essential used parts of a fan. But, do you know why such a small part can affect the working of the fan? Why is Capacitor Used in a Fan? Let us first start from the basics. A fan works on a single-phase motor. You will not have heard of a fan working on three phases. So, a fan always requires a single-phase AC supply. Now, if you see the working of a motor, you will be knowing that it is a device that converts electrical energy into mechanical energy. This is due to Faraday’s law of electromagnetic induction. If electrical energy is passed through a magnet, an electromagnetic field is generated wh...

 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 ...

 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...

 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...

 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...

 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...