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The naming convention popularly known as Vector Group of Transformer was established by the International Electrotechnical Commission (IEC) through IEC 60076-1. This was done in order to create a notation for three-phase transformer winding configuration. Vector Group of Transformer: Common Symbol Designation Y or y – star winding D or d – delta winding N or n – neutral 0 to 12 – phase displacement in terms of clock position in multiples of 30°.  According to the standard, the notation should follow HV-LV-Phase displacement sequence with the HV winding in uppercase and LV winding in lowercase. SANKALP INDUSTRIAL SERVICES www.sankalpindustries.in

What is fiber optics? Fiber optics refers to the technology that transmits information as light pulses along a glass or plastic fiber. A fiber optic cable can contain a varying number of glass fibers, from a few up to a couple hundred. Another glass layer called cladding surrounds the glass fiber core. The buffer tube layer protects the cladding, and a jacket layer acts as the final protective layer for the individual strand. Fiber optic cables are used because of their advantages over copper cables. Some of those benefits include higher bandwidth and transmit speeds. Fiber optics is used for long-distance and high-performance data networking. It is also commonly used in telecommunication services, such as internet, television and telephones. Advantages and disadvantages of fiber optics Advantages- They support higher bandwidth capacities. Light can travel further without needing as much of a signal boost. They are less susceptible to interference, such as electromagnetic interference....

Copper and aluminum are two of the main choices for wiring in a home and each wiring material comes with its own advantages and disadvantages. ALUMINUM WIRE Advantages- Aluminum wire is generally easier to use than copper because it’s lighter and more malleable, making it an ideal wiring material to use over long distances. Likewise, it is significantly more affordable than copper, so much so that you will generally have half as much copper wire than you would with aluminum for the same cost.  Disadvantages- Aluminum wiring is vulnerable to corrosion and therefore cannot match the lifespan of copper wire.  Likewise, its softness makes it prone to breakage and loose connections. COPPER WIRE Advantages- Copper is the popular choice for many wiring applications, mainly because of its durability and high conductivity.  Disadvantages- It is costlier than aluminum wire.  Apart from its higher cost, it is also heavier, which means it requires the construction of...

Top 6 Causes for power system failures 1- Underground cables Electrochemical treeing of underground power cables is one of the alarming causes for the downscaling of power system reliability. Treeing is a process in which the dielectric strength of an insulating material perishes as a result of moisture penetration while the electric field is still in operation.Once the dielectric strength of the insulating material weakens considerably, a lightning strike or even a switching can destroy the insulation.   Solution for this is one can considerably reduce electrochemical treeing by installing surge protection devices on the electric poles, which are capable of transitioning voltage transients into the ground. Alternatively, one can also purchase cables that are treeing resistant. 2-Transformer breakdowns Transformers are one of the most important components of a distributed power system and can pose a lot of complicacies if they breakdown. Though voltage transients and faults can imp...

Insulator  The main purpose of an insulator is to control the unwanted flow of electricity from the powered conductor or conducting components. Electrical insulation plays an important role in every electrical application. Electrical insulating materials are introduced as substances that present a high resistance to the flow of electricity, and for that aspect, they are employed to keep current in its suitable path within the conductor. Let's discuss insulating materials, the property of insulating material and different types of insulating materials. What are the different types of insulator materials? Classification of insulator material.  It is possible to classify insulation materials according to their substances and their temperature. A large number of materials and substances can be defined as insulators, many of which have to be used in practice, as no single material or substance can meet all the requirements contained in the numerous and different applications of ins...

Indoor Safety- Periodically test the electrical installation for insulation strength and replace if required. Replace damaged electrical components like switches, plug sockets etc., immediately when noticed. Use only ISI marked electrical appliances, cables and wires. Use 30 mA ELCB the "LIFE SAVER" at the main supply point. Get electrical work done only by qualified licensed electrical contractors. Install switches and plug sockets at an inaccessible height and away from children. Do not use electrical appliances that have been wet. Make sure that there is easy access to switch off the supply source quickly in case of an emergency.  Do not fix a nail on the wall where concealed PVC conduit wiring has been done.  Outdoor safety- Avoid fallen electricity poles and power lines or anything in contact with these. Do not touch water or anything in contact with water near where there is a downed power line. Do not try to free somebody who is in contact with an electrical power line...

Industrial lighting fixtures come in a variety of shapes and sizes, each designed for a specific purpose. Some fixtures are used to provide general illumination, while others are used for more specialized purposes, such as task lighting or accent lighting.  With so many different types of fixtures available, it can be difficult to know which one is right for your needs.  Five of the most common types of industrial lighting fixtures include: Fluorescent lighting High Intensity Discharge lighting Incandescent lighting LED Metal halide Fluorescent light  – Fluorescent light fixtures produce artificial lighting using fluorescent gas. These fixtures work well in office and industrial settings because they are efficient and have a long lifespan. Here’s how they work.  Fluorescent lights use an electrical current to ionize gas inside the bulb. This process emits ultraviolet light, which then interacts with the phosphorous coating on the inside of the bulb to create visible ...