Transformer: Definition, Working, Losses, Efficiency

Transformers are used today in almost every electrical system to either step up, step down, or isolate one voltage level from another. The extensive use of transformers started after what is known in the electrical field as the “War of Currents.” Thomas Edison believed that the U.S. power distribution system …

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Smart Grid Distribution System

smart grid distribution system

As an important form of energy, electricity offers the advantages of being clean, highly efficient and convenient for users. The power system that links the generation, transmission, distribution, and consumption of electricity is one of the most complex man-made systems constructed to date. With the increasing demand for energy throughout …

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How to Resolve Energy Problems of Pakistan?

In general, electricity is a basic necessity for anyone instead of a luxury. In order to attain a certain standard of living, electricity is indispensable. Since, the demand for this energy has been increasing exponentially with the ever-rising number of population of Pakistan, the supply of electricity has been inadequate …

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Voltage Changes in Electrical Power System

Voltage changes in an electrical power system may be categorized as momentary, temporary, or sustained.

AC generators are designed to produce a rated output voltage. In addition, all electrical and electronic equipment is rated for operation at a specific voltage. The rated voltage is a voltage range that was normally ±10%. Today, however, with many components de-rated to save energy and operating cost, the range …

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Types of AC Generators | Single Phase and Three Phase AC Generator

AC Generator

The types of AC generators include single-phase (1φ) and three-phase (3φ) AC generators. Single-phase and three-phase AC generators operate similarly; however, single-phase generators have one armature and three- phase generators have three armatures. Three-phase generators provide a more consistent voltage than single-phase generators. Three-phase AC generators are either wye-connection or …

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AC Generator: Parts & Functions

AC generators consist of field windings, an armature (coil), slip rings, and brushes

Generators convert mechanical energy into electrical energy by means of electromagnetic induction. AC generators, also referred to as alternators, convert mechanical energy into AC voltage and current. AC generators consist of field windings or permanent magnets, an armature, slip rings, and brushes. See Figure 1. Figure 1. AC generators consist …

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DC Generator Types | Series Shunt Compound Generators

The three types of DC generators are series-wound, shunt-wound, and compound-wound generators. The difference between the types is based on the relationship of the field windings to the external circuit. Series-Wound DC Generators A series-wound DC generator is a generator that has its field windings connected in series with the …

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DC Generator: Parts & Working

DC generators consist of field windings, an armature, a commutator, and brushes

A DC generator is a machine that converts mechanical energy into electrical energy by means of electromagnetic induction. DC generators operate on the principle that when a coil of wire is rotated in a magnetic field, a voltage is induced in the coil. The amount of voltage induced in the …

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Solenoid Applications in Daily World

Solenoids can be found in a wide range of equipment. In residential equipment, solenoids can be found in doorbells, washing machines, and kitchen appliances. Solenoids are commonly used in commercial and industrial control circuit applications such as hydraulics/ pneumatics, refrigeration, combustion, general-purpose controls, and pneumatic robotics. Hydraulics/Pneumatics Solenoid-operated valves typically …

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