Basic Electrical

What is Underground Cable? Construction, Types, Advantages, Disadvantages & Applications

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An underground cable is a type of electrical cable used for transmitting and distributing electricity beneath the ground’s surface. Unlike overhead transmission lines, these cables are concealed, offering better protection from external environmental factors, enhanced safety, and improved aesthetic appeal. Underground cables are widely used in urban areas, industrial installations, and specialized applications like submarine […]

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What is Oil Circuit Breaker? Definition, Construction, Working, Diagram, Types & Applications

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An Oil Circuit Breaker (OCB) is a type of circuit breaker that uses insulating oil as both an arc-quenching medium and an insulating medium. The oil is vaporized during the interruption process, producing gases that effectively cool and extinguish the arc formed when contacts separate under load or fault conditions. It is widely used in

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What is Kit Kat Fuse? Definition, Working, Construction, Diagram, Types & Applications

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A Kit Kat fuse is a simple, reusable fuse primarily used for low and medium-voltage applications. It consists of a porcelain base and a fuse carrier that holds the fuse element. Kit Kat fuses are commonly used in domestic, industrial, and agricultural electrical installations for overcurrent protection. Figure 1: Kit Kat Fuse. Parts of Kit

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Vacuum Circuit Breaker – Definition, Construction, Working, Diagram, Types & Applications

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A Vacuum Circuit Breaker (VCB) is a type of electrical circuit breaker that interrupts current flow and isolates a circuit during faults or maintenance by extinguishing the arc in a vacuum. The vacuum serves as the arc-extinguishing medium, offering superior insulation and rapid arc suppression. VCBs are widely used in medium- and high-voltage power systems

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Buchholz Relay – Definition, Working Principle, Diagram, Construction, Advantages & Applications

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A Buchholz Relay is a gas-actuated safety device used in oil-immersed transformers to detect and protect against internal faults. It operates on the principle of gas accumulation or sudden oil flow caused by electrical faults inside the transformer. It is typically installed in the pipeline connecting the transformer’s main tank and the conservator.

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Lightning Arrester – Definition, Working, Diagram, Types & Location of Lightning Arrester

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A lightning arrester is a device that provides a low-impedance path to ground for lightning or transient overvoltages, effectively protecting the electrical system from high-voltage surges. It operates by limiting the voltage across its terminals to a safe value and shunting the excess energy to the ground. What is a Lightning Arrester? A lightning arrester,

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What is an Energy Meter? Working, Diagram, Construction, Advantages, Types & Applications

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An Energy Meter, also known as a watt-hour meter, is an electrical device used to measure the amount of electrical energy consumed by a residence, business, or electrically-powered device. The energy is typically measured in kilowatt-hours (kWh), which is the standard billing unit for energy consumption.

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