TILI Automation

 Interposing Relay is the auxiliary relay which is used to isolate the two different systems / devices. This could be because they have different 0V references, different voltages, AC vs. DC. Interposing Relay We discuss the interposing relay with two cases, as discussed below : Case-I Suppose we want to operate a Contactor through PLC Panel having Coil Voltage 230 V AC, But PLC relay Output Voltage is 24 V DC. In this case we require a Interposing relay Having Coil Voltage 24 V DC but its contact rating should be 230 V AC. So PLC relay will operate interposing relay first & then through its Auxiliary contacts We can Operate Contactor easily. Case-II For example, let’s say the relay of a PLC can only avail 1 A at 110 VAC, but the Controller which is to be connected to the relay requires 3 A at 110 VAC. In this case, an interposing relay with contacts rated for operation at 5 A(>3 A) at 110 VAC would be used as an interposing relay “between” the PLC relay and the Controller. ...

 Fasteners such as head bolts and lug nuts help securing different parts that are under constant tension and stress. They come in different sizes and levels of hardness. Screw thread type fasteners must be tightened to a specific amount of torque. Hence, we use Torque Wrenches to do this job. But an important question is: What Size Torque Wrench Do You Need? In this guide, we will see briefly about Torque Wrenches, types of torque wrenches and what size torque wrench to use. An Overview of Fasteners and Torque Any decent automobile technician must know about different types of fasteners (nuts and bolts), tightening procedures, what size torque wrench to use, etc. Speaking of tightening fasteners, we should not over tighten or under tighten it as it can damage or break or become loose over time. But how do we make sure that a fastener is tightened properly? This is where the torque specifications of nuts and bolts come handy. As it is difficult to precisely measure the tightening fo...

 Smart Bulbs are one of the first things you can automate in your home. You can control them over the internet. Want to change the color of the light? Smart Bulbs can do it. You can set the mood of the house using these incredible devices. All these “features” make them more expensive than regular LED Bulbs. This makes many consumers wonder: How Long Do Smart Bulbs Last? It is a fair question as we don’t want to buy these pricey items frequently and expect them to last longer. In this guide, we will explore the World of Smart Bulbs. See what are the possible things to fail in a smart bulb. We will also see how long smart bulbs last. An Overview of Smart Bulbs We all have light bulbs in our homes. Over the years, we moved from incandescent to Fluorescent to LED Bulbs. Until a better lighting technology comes in the future, it looks like LEDs have a “bright” future. The main advantages of LED Light Bulbs are high energy efficiency, long lifetime, and adjustable brightness. One other ...

 What is Capacitor? Capacitor is also known as condenser. This is one of the passive components like resistor. Capacitor is generally used to store the charge. In capacitor the charge is stored in the form of “electrical field”. Capacitors play a major role in many  electrical and electronic circuits. Generally, a capacitor has two parallel metal plates which are not connected to each other. The two plates in the capacitor are separated by non conducting medium (insulating medium) this medium is commonly known as Dielectric. There are different types and different shapes of capacitors  available , from very small capacitors which are used in resonance circuits to large capacitors for  stabilising HVDC lines. But all capacitors are doing the same work that is storing the electrical charge. The shape of a capacitor is rectangular, square, circular, cylindrical or spherical shape. Unlike a resistor, an ideal capacitor does not dissipate energy.As the different types of ...

 Introduction Nowadays, many electromechanical or electrical equipments from household appliances, such as uninterrupted power supplies to industrial power and motor control equipments , consist of power electronic circuits, in which Thyristors play an important role as solid-state switching devices. The conventional methods of power control involve use of variable tap-changing transformers, shunt and series regulators to produce the variable voltage in steps. But these are cost effective and inefficient. Later, magnetic amplifiers are invented to produce the static control of power with a greater reliability. However, due to the bulkiness of the controllers and less efficiency, these are limited to certain applications. A Brief History of Thyristor The development of power control with electronic methods is started with the use of thermonic and gas-discharge valves. These devices include mercury arc converters and thyratrons and ignitrons. The thyratrons are gas-filled triodes use...

 If you are setting up a new internet connection or upgrading to the latest optical fiber connection, then there is very little you need to do in terms of any settings or configuration. Most of the time, you simply plug-in the cable/optical fiber/RJ-45 Cable from your ISP (Internet Service Provider) into respective equipment (Modem/Router) and it just works. But sometimes, very rarely, you might face network speed issues or complete lack of connectivity. In situations like these, the problem will usually be from the ISP side (their server side or equipment) and they will fix it after you complain. Other times, the problem may be due to settings in your router and you have to tweak a little bit with its configuration settings. One such parameter is the MTU Size. But what is MTU? Why do we need to specify its size? We will find answers to all MTU Size related questions in this guide. What is MTU Size? The Maximum Transmission Unit or MTU for short, is the largest data packet size tha...

 While Copper, Steel and PVC remain the popular choices for residential and commercial pipes and tubes, the PEX pipe is showing tremendous growth in demand due to its cost and labor efficiency. Some applications of PEX pipes are radiant heating systems, snow melting, carrying municipal water and hot/cold water distribution. But what is a PEX? What are the advantages and applications of PEX pipes? We will learn more about PEX pipes in this guide. We will also see a PEX Pipe Size Chart, which lists out all the important dimensions of standard PEX pipes. What is PEX Pipe? Cross-Linked Polyethylene or PEX is a flexible, high-temperature plastic (polymer) tubing invented in Germany in the late 1960’s. Soon, it became the primary choice for residential water-supply plumbing across Europe. But this was not the case in the U.S. Frequent comparisons of PEX and Polybutylene (PB) piping was one of the main reasons for Americans not accepting PEX piping in the initial days. If you are unfamili...