Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

What is Wind Turbine?Horizontal Axis Wind Turbine DefinitionA horizontal axis wind turbine (HAWT) is defined as a wind turbine with a horizontal rotation axis parallel to the ground, commonly used for large-scale power generation.Main Components The rotor, which consists of the blades and the hub that connects them to the shaft. The generator, gearbox, brake, yaw system, and other mechanical and electrical components. The tower supports the nacelle and the rotor and elevates them above the groun

What is a Solar Lantern ?Solar Lantern DefinitionA solar lantern is a portable solar electric system used for temporary lighting both indoors and outdoors.Main Components Electric lamp Battery Electronic control circuitFunctionalityThe solar PV module charges the battery, which powers the lamp, providing efficient lighting.Different ModelsSolar lanterns come in various configurations based on lamp type, battery capacity, and PV module rating.LED BenefitsLED-based solar lanterns are energy-effici

What is a Solar Cell?Solar Cell DefinitionA solar cell (also known as a photovoltaic cell) is an electrical device that transforms light energy directly into electrical energy using the photovoltaic effect.Working PrincipleThe working of solar cells involves light photons creating electron-hole pairs at the p-n junction, generating a voltage capable of driving a current across a connected load.Construction DetailsSolar cells consist of a thin p-type semiconductor layer atop a thicker n-type laye

What is Solar Electricity?Solar Electricity DefinitionSolar electricity is produced by sunlight hitting photovoltaic cells, generating power.Photovoltaic EffectSolar energy electrical engineering relies on the photovoltaic effect, where sunlight creates electricity in semiconductor materials.Structure of Solar CellsA solar cell consists of a thin n-type layer on top of a thicker p-type layer, with a depletion region at their junction.Charge SeparationSunlight causes electrons to move to the n-la

What is Photovoltaic Effect?Photovoltaic Effect DefinitionThe photovoltaic effect is the direct conversion of light energy to electrical energy using semiconductor materials.Semiconductor RoleSemiconductors like silicon are crucial as they facilitate the movement and interaction of electron-hole pairs necessary for electricity generation.Charge Carrier DynamicsThe movement of electrons and holes across the semiconductor junction is essential for establishing an electric field that aids in electr

What is a Steam Turbine?Steam Turbine DefinitionA steam turbine is a device that converts high-pressure steam into mechanical energy to generate electricity.AdvantagesSteam turbines are smaller, simpler, and operate at higher speeds with less vibration compared to diesel engines.Working PrincipleSteam turbines use the dynamic action of expanded steam to produce mechanical movement.Impulse and Reaction TurbinesImpulse turbines expand steam in a nozzle and strike the blades, while reaction turbine

What is a Deaerating Heater ?Deaerating Heater DefinitionA deaerating heater (deaerator) is defined as a device that removes dissolved gases from boiler feedwater to prevent corrosion and improve efficiency.How It WorksDeaerating heaters use steam to heat the feedwater and strip dissolved gases, which are then vented away.Efficiency Factors Temperature Pressure Steam quality Deaerator designBenefits Improve boiler efficiency Reduce corrosion lower chemical costs Increase reliabilityTypes of Deae

What is Cogeneration ?Cogeneration DefinitionCogeneration, or combined heat and power (CHP), is defined as a system that produces both electricity and heat from a single fuel source.High Efficiency Cogeneration plants are highly efficient, with efficiency rates of 80-90%, compared to the 35% efficiency of conventional power plants. Environmental Benefits Cogeneration reduces emissions of pollutants and greenhouse gases, helping to combat climate change.Economic Advantages Cogeneration helps to i

What is MHD Generation?MHD Generation DefinitionMHD power generation is a process that directly converts thermal energy into electrical energy, bypassing mechanical stages, making it highly efficient.Faraday’s PrincipleThe principle of MHD generation relies on Faraday’s law of electromagnetic induction, where movement of a conducting fluid through a magnetic field induces electrical current.The power generated per unit length by MHD generator is approximately given by u is the fluid velocity B i

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