What is a Rogowski Coil?The Rogowski coil is defined as an electrical device that is used to measure alternating current (AC). It is also used to measure the high-speed transient, pulsed current or sinusoidal current. The name Rogowski coil was named after the German physicist Walter Rogowski.A Rogowski coil is an evenly wounded coil with N number of turn and constant cross-section area A. There is no metal core in a Rogowski coil.The end terminal of the coil is returned through the central axis

What is Eddy Current According to Lenz’s law, a conducting loop when subjected to varying magnetic field gets an emf induced into it causing flow of current in a direction opposing the change causing it. The case goes similar to when instead of a conducting closed loop, the change in magnetic field through a conducting body, say a filament or a slab of magnetic material or non-magnetic material, causes currents to flow into its cross sections at appropriate closed paths. These currents are g

What is a Centrifugal Switch?A centrifugal switchis an electrical switch powered by the centrifugal force created by a rotating shaft. This centrifugal force is typically provided by a gasoline engine or electric motor. Centrifugal switches are designed to activate or deactivate the rotational speed of the shaft.How do Centrifugal Switches work?A centrifugal switch is an electrical switch normally found in signal phase induction motors and split-phase induction motors.This switch is used to prov

Introduction of Efficiency of TransformerTransformers form the most important link between supply systems and load. Transformer’s efficiency directly affects its performance and aging. The transformer’s efficiency, in general, is in the range of 95 – 99 %. For large power transformers with very low losses, the efficiency can be as high as 99.7%. The input and output measurements of a transformer are not done under loaded conditions as the wattmeter readings inevitably suffer errors of 1 – 2%. So

Actual safety requires whole hearted cooperation, from all levels of workers involved in the work. It is need not to say, that all the people engaged in the electrical work should well aware of all safety rules and regulations related to the work they are executing. The workers executing the work should be extremely disciplined. Electrical work should not be done by wearing loose dresses.Before starting the work, the working place should be made neat and clean. The place should also be sufficien

Nobody should climb any tower carrying liveoverhead conductors. Cows or other domestic animals should not be tied with any tower legs and stay wires. Nobody should be allowed to throw any metallic strip, metallic wire, ropes and green twinges to the live over head lines. If anyconductoris snapped or dangling from the tower, should not be touched without proper shutdown and temporary earthing arrangement. In this case nobody should be allowed to come closer to the snapped or hanged conductor unt

What is Dielectric Grease?Dielectric grease is a silicone-based grease that is used in an electric circuit to protect components from dirt, moisture, and corrosion. Dielectric grease is also known as silicone grease.It is a non-conductive material used in the electrical circuit to transfer heat from the device. It is a waterproof grease and made by adding a silicone oil with a thickener.What is Dielectric Grease Used For?Dielectric grease is used to disturb the flow of electric current with the

What is a Cut Sheet?A cut sheet (also known as a spec sheet or specification sheet) is an equipment information sheet that provides and describes the specifications and/or features of a piece of equipment. These are common in the electrical industry for equipment such as motors, circuit breakers, transformers, and other electrical equipment.Any commercial electrical job typically has to have all material or equipment approved by the electrical engineers, owners, or both. A cut sheet gives you s

What is a 1900 Electrical Box?A 1900 Electrical Box is defined as a standard 4 inches (4’’) square electrical switch box which is the combination of a gas and electrical box. It is the most commonly used box when a simple switch box is not big enough. 1900 Electrical Box 1900 Combination Gas and Electrical Box Cover There are usually two types of 1900 Electrical Box are available. 1900 Electrical Box 1900 Deep Electrical BoxTwelve 10 AWG (American Wire Gauge) can be installed in a 4-

What is a 1900 Electrical Box?A 1900 Electrical Box is defined as a standard 4 inches (4’’) square electrical switch box which is the combination of a gas and electrical box. It is the most commonly used box when a simple switch box is not big enough. 1900 Electrical Box 1900 Combination Gas and Electrical Box Cover There are usually two types of 1900 Electrical Box are available. 1900 Electrical Box 1900 Deep Electrical BoxTwelve 10 AWG (American Wire Gauge) can be installed in a 4-inch