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

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

The button controls the star Triangle step-down start circuit

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 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

Cage motor autotransformer starts manual control circuit

What is a Power Plant?Power Plant DefinitionA power plant (also known as a power station or power generating station) is an industrial facility for generating and distributing electric power on a large scale.Types of Power Plants Thermal Nuclear HydroelectricThermal Power PlantsUse coal to produce steam that drives turbines to generate electricity.Advantages Fuel used i.e coal is quite cheaper. Initial cost is less as compared to other generating stations. It requires less space as compared to h

What is an Incandescent Lamp?Incandescent Lamp DefinitionAn incandescent lamp is a light source that produces visible light by heating a filament until it glows.Working PrincipleThe lamp works by passing an electric current through a filament, causing it to heat up and emit light.Filament ConstructionThe filament is made of tungsten and is housed in a glass bulb that may be filled with inert gases or vacuum-sealed.Material and EfficiencyTungsten is used for its high melting point and efficiency,

What is an Electric Lamp?Electric Lamp DefinitionAn electric lamp is defined as a light-emitting component used for lighting and indicating purposes in circuits.ConstructionElectric lamps have a tungsten filament inside a transparent glass cover that glows when current flows through it.Voltage RatingThis rating indicates the voltage needed for proper brightness. Exceeding the voltage can damage the lamp.Types of Electric Lamps Edison Screw lamps Miniature Center Contact lamps Small Bayonet Cap l

A circuit that uses a leakage switch as a scram switch

What is Tunnel Lighting?Tunnel Lighting Design DefinitionTunnel lighting design is about creating a lighting plan that helps drivers’ eyes adjust to the tunnel environment for safety and comfort.Adaptability CriteriaLighting must transition gradually from high to low levels to help drivers’ eyes adjust smoothly when entering or exiting the tunnel.40 m Length RuleThe first 40 meters of a tunnel should be designed to let in daylight and ensure visibility of objects inside.Classification of Inside