Electric Portal is about electrical concepts and other electrical machines like motor transformer,dol starter,star delta starter,auto transformer starter and much more
What is a soft starter, application, and working principle pdf Soft Starters are starting devices, used for the acceleration, deceleration, and protection of the three phase electrical induction motors through the controlling applied voltage to 3 phase motor.Induction motor is the most frequently used motor for industrial as well as domestic applications. Most industrial motors are […]
Auto transformer is a transformer in which part of the winding is common to both the primary winding circuit and a secondary winding. In normal two winding transformers, primary and secondary winding are electrically isolated but in the case of an autotransformer, the two winding are connected electrically as well as magnetically. Auto transformer are also called […]
In the Delta connection, the dissimilar terminals of three phase windings are connected together. The finishing end of one phase is joined to the starting end of the other phase to obtain mesh or delta-connected winding. Delta connection in the power system is shown in the below diagram As shown in the diagram of the […]
The working principle of the transformer is based on Faraday’s law of electromagnetic induction. The three-phase power transformer is the main device of every power system. the main function of transformer is to step up or step down the voltage level. Considering the insulation part of the generator, the generation of electrical power is limited […]
A fuse is a small wire connected between two terminals that are mounted on an Insulating base and connected in series with a circuit. A fuse is the simplest and cheapest current interrupting device used to protect equipment from overload or short circuit faults in medium and low voltage applications. A high rupturing capacity fuse […]
SF6 circuit breaker uses sulfur hexafluoride gas as an arc quenching medium. SF6 gas is used because it has high dielectric strength which acts as a good arc-quenching medium. SF6 is an electro-negative gas and has a high capacity to absorb free electrons. SF6 circuit breakers’ contact is opened in the high-pressure flow of SF6 […]
Armoured cables represent a significant advancement in the field of electrical engineering, designed to offer enhanced safety and protection in demanding industries and environments. Comprising various elements such as conductors, insulation, bedding, armour, and sheath, these power transmission linchpins are constructed with careful attention to detail to ensure optimal resilience and reliability. Understanding the anatomy […]
There are in general two types of transformer Shell type and core type transformer These two types differ from each other in the manner in which winding wound on the magnetic core. Core type Transformer In core type, the magnetic core is built of laminations to form a rectangular frame and the windings are arranged […]
In our technologically advanced world, the versatility and efficiency of induction motors have made them integral in varying industrial applications. From the functioning of a small home appliance to the powering of enormous machines, the induction motor lies at the heart of numerous operating systems. This humble electrical device, composed of essential elements like the […]
In power system protection, circuit breaker tripping is crucial if any fault occurs in the system. If the trip circuit is unhealthy and the fault occurs, the circuit breaker will not trip, the fault will pass through the circuit breaker into the system and equipment will get damaged or the upstream breaker would have to […]
