Indepth Electrical engineering

Hybrid Air Conditioners: Are They Worth the Investment? In today’s world, technology keeps evolving —and air conditioning is no exception. From conventional models to energy-efficient inverter ACs, and now to Hybrid Air Conditioners , the industry has seen remarkable shifts. But what exactly are hybrid ACs, and do they make financial and technical sense for Indian households and businesses? Let’s break it down. What is a Hybrid Air Conditioner? A Hybrid Air Conditioner is designed to run on two power sources : Electricity (Grid Power) Solar Energy These ACs are equipped with: Solar panels (to generate electricity during the day) Batteries + inverter system (to store solar energy and run the AC at night) ➡️ This means a hybrid AC can run 100% on solar power during the day and continue to work at night using stored energy. Key Features & Considerations Before Buying Space Requirement Hybrid ACs require additional space for panels, batteries, and t...

Cylindrical capacitors:- Unlike plate capacitors where 2 plates are used to form a capacitor, cylindrical capacitors are made by using two concentric cylindrical shells or wires and these two cylinders and wires are separated by using a dielectric medium. Only difference between plate capacitor and cylindrical capacitor is its shape. Electrical cable is best example for cylindrical capacitors. How to calculate capacitance of a Cylindrical capacitor:- For Calculating capacitance of a cylindrical capacitor let’s take radius of inner cylinder as r1 and outer cylinder as r2. Now let’s take permittivity of dielectric material used to form capacitor as  ε a . As in case of plate capacitor where one plate is acts cathode and other acts as an anode now in similar case let’s take inner cylinder charge per meter length on outer surface of inner cylinder as +q and similarly on inner surface of outer cylinder as –q coulombs. In practical +q charge is considere...

Synchronization of Machines using dark lamp method:- If phase sequence of running machine is RYB and incoming machine who is to be synchronized with the system is abc, than synchronization switch would be put across contacts a-R, b-Y, c-B respectively. Simultaneous closure of these switches causes synchronization of incoming machine with the running machine. In dark lamp method of synchronization , There identical lamp’s L1, L2, L3 are contacted across a-R, b-Y, c-B respectively.  Voltage rating of these lamps should be twice the rated line to neutral voltage of the machine. Correct phase sequence can be verified if all the three lamps become dark together and bright together with same intensity of brightness. If same doesn’t happens than by changing any 2 terminals of incoming machine correct  phase sequence can be achieved. Image below shows how to Synchronize machines using dark lamp method:- If lamps never attain a dark phase but intensity ...

Electrical Braking in Motors: Types, Working & Applications Learn about electrical braking in motors, including regenerative braking, dynamic braking, and plugging. Understand how these methods differ from mechanical braking, their working principles, advantages, and limitations. 🔹 Introduction Brakes are used to reduce the speed or stop rotating equipment . In daily life, we commonly use brakes in vehicles . Similarly, in electrical systems, braking plays a crucial role in controlling motors. There are two main types of braking: Mechanical Braking – Speed reduction by mechanical force (e.g., friction brakes). Electrical Braking – Combination of electrical and mechanical methods, working on the principle of reversing flux direction. Unlike simply switching off the motor (where it slows down naturally), electrical braking is needed in applications requiring controlled deceleration . Different motors (induction motors, DC motors, synch...

Electrical Chimney is now becoming integral part of every house as houses are shrinking so to get natural ventilation becomes very  difficult. Before  purchasing chimney lot you have to carry out lot of research on internet so as to get best product as per your requirements. There are so many chimneys available in the market which can be selected as per requirements. It is always useful to look into technical specifications, prices , size etc. as per kitchen requirements.  Electrical chimneys are basically forced method of ventilation. All chimneys work on the principle of Updraft. Principle of Working of Chimney As Stated earlier that chimney works on the principle of updraft. Updraft is nothing but flow of air from bottom to top.  Pressure difference will created the required updraft. This required pressure difference is created by chimney.  Longer the height or length of pipe in chimney , longer will be the air is forced to travel through it. It must be...