A Pin Insulator is a type of electrical insulator mounted directly on a pole or tower to support conductors and insulate them from the supporting structure. It is one of the oldest and most commonly used insulators for low to medium voltage transmission lines. Pin insulators are typically made of porcelain, glass, or composite polymer […]
A strain insulator is a type of electrical insulator used to withstand mechanical tension in overhead transmission and distribution lines. These insulators are specifically designed to provide both mechanical strength and electrical insulation in situations where conductors are under significant tension, such as at sharp bends, dead-end poles, or long spans.
A suspension insulator is a type of electrical insulator used in overhead power transmission and distribution lines. Its primary function is to insulate the conductor (carrying high voltage) from the supporting structure (e.g., towers or poles) and maintain the mechanical strength required to sustain the conductor.
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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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
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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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
Spot welding is a type of resistance welding process primarily used to join two or more metal sheets by applying pressure and heat generated by an electric current. It is commonly used in the automotive, aerospace, and manufacturing industries for creating strong, reliable joints.
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An HRC (High Rupturing Capacity) fuse is a type of fuse used in electrical systems to provide overcurrent protection. It is designed to handle high fault currents without rupturing the fuse casing or causing an explosion.
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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.