Encyclopedia Knowledge

What is a Solar Lantern ? Solar Lantern Definition A solar lantern is a portable solar electric system used for temporary lighting both indoors and outdoors. Main Components Electric lamp Battery Electronic control circuit Functionalit y The solar PV module charges the battery, which powers the lamp

What is Wind Turbine? Horizontal Axis Wind Turbine Definition A 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

What is Hydrant System ? Hydrant System Definition A hydrant system is a water-based fire protection setup in thermal power plants, including components like valves, hoses, and nozzles. Components of a Hydrant System Isolation gate valves installed above ground on RCC pedestals around areas to be pr

What is Power Factor? Power Factor Definition Power factor is defined as the ratio of real power used by a system to the apparent power transmitted through the circuit. Understanding Reactive Power Reactive power does no useful work itself, but it supports the active power in accomplishing useful wo

What is Electrical Reactor ? Electrical Reactor Definition An electrical reactor, also known as a line reactor or choke, is a coil that creates a magnetic field to limit current rise, reducing harmonics and protecting electrical drives from power surges. Types of Reactors Shunt Reactor Current Limit

What is a Shunt Reactor ? Shunt Reactor Definition A shunt reactor is defined as an electrical device used in high voltage power systems to stabilize voltage during load changes. Voltage Stabilization It controls dynamic overvoltage and provides capacitive reactive power compensation in systems abov

What are Dielectric Gaes ? Dielectric Gas Definition A dielectric gas is defined as an insulating gas that prevents electrical discharge and can be polarized by an electric field. Breakdown in Gases Breakdown in gases occurs when the applied voltage exceeds the breakdown voltage, causing the gas to

What is an Electrical Fuse? Electrical Fuse Definition An electrical fuse is a protective device that breaks the circuit when the current exceeds a predetermined value to prevent damage. Fuse Wire Function The fuse wire carries normal current without excessive heating but melts and breaks the circui

What is an Electric Arc? Arc Definition An arc is a glowing path created by ionized gas between circuit breaker contacts when they open. Arc in Circuit Breaker The arc phenomenon in circuit breakers occurs between separating contacts under load, maintaining current flow until quenched. Thermal Ioniz

What is Indoor Switchgear ? Indoor Switchgear Definition Indoor switchgear is defined as a type of electrical switchgear enclosed in a grounded metal case, commonly used for medium voltages. Indoor Switchgear Classification Metal-enclosed indoor switchgear. Metal-clad indoor switchgear Gas-Insulated

What is a Vacuum Switchgear ? Vacuum Switchgear Definition Vacuum switchgear is defined as a type of electrical switchgear that uses a vacuum as the arc quenching medium, providing high reliability and low maintenance. Dielectric Strength Vacuum switchgear offers high dielectric strength, allowing f

What is a Surge Arrester? Definition of Surge Arrester A surge arrester, also known as a lightning arrester, is a device used to protect electrical equipment from overvoltage transients caused by lightning or switching. Characteristics of zinc oxide arrester Circulation capacity Protective character