Indepth Electrical engineering

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...

Cable Tray Design in Electrical Systems – Example & Calculation Cable trays are one of the most widely used methods for laying power cables in electrical systems. They are preferred over underground trenching where: Digging is not feasible or digging cost is very high. Space constraints exist in industrial or commercial setups. Aesthetic and maintenance-friendly cabling is required. Cable trays (especially perforated type) ensure easy installation, heat dissipation, and organized routing of cables. General Recommendations for Cable Tray Design Spare Capacity: Always design with 10–20% spare capacity for future expansion. Cable Spacing: Maintain 5–10 mm clearance between adjacent cables for ventilation and safety. Weight Capacity: Ensure tray weight carrying capacity > total cable weight per meter. Example: Designing a Cable Tray for Aluminum Cables We will design a tray for the following cables: 10 Nos. 2.5 mm² × 4 Core cables 10 Nos....

In recent days JIO has generated lot of buzz which offers free calling for lifetime and free internet up to December. There is also new technology associated with JIO is VoLTE. Mobile phone manufacturers are selling phones with VoLTE enabled technology. Now there is curiosity what is VoLTE? and how it is different? In this below article we will learn what is VoLTE technology all about?:- VoLTE:- There is new technology in field of data services. VoLTE is known as Voice over Long-Term Evolution. It is used for providing a uniform format of voice traffic on LTE and other systems including CSFB (Circuit Switched Fall Back) and SV-LTE(Simultaneous Voice Long term evolution). This technology is used for better voice call quality. VoLTE uses 4G technology and it is based on packet switching on the other hand 2G and 3G networks uses circuit based switch. Now when we make a call using 2G and 3G then there is bandwidth assigned to that call this will not allow to  terminate ...

Methods for Reducing Harmonics in Electrical Systems Harmonics are one of the biggest challenges in modern electrical systems, especially with the growing use of non-linear loads such as Variable Frequency Drives (VFDs), rectifiers, and electronic devices . Excessive harmonics can lead to equipment overheating, reduced efficiency, nuisance tripping, and overall poor power quality . Fortunately, several methods exist to reduce harmonics and improve system reliability. Let’s explore the most effective solutions. 1. DC Choke Application: Commonly used in VFDs (a major source of harmonics). Working Principle: A DC choke is an inductor in series with the DC link of the semiconductor bridge circuit. Effect: Reduces 5th and 7th order harmonics Improves current waveform smoothness Comparable to AC-side line reactors (though THD reduction is slightly less). ✅ Key Point: DC chokes are simple, cost-effective, and wide...