Power System

Pole Mounted Substation – Definition, Single Line Diagram & Components

A pole mounted substation is a type of outdoor substation used for distributing power in low-voltage systems. It is typically mounted on a pole structure and is designed to step down the high-voltage (HV) electricity from the transmission or distribution line to a lower voltage (LV) suitable for end-users, such as residential or small industrial […]

Pole Mounted Substation – Definition, Single Line Diagram & Components Read More »

What is Shackle Insulator? Construction, Working, Types, Advantages, Disadvantages & Applications

A Shackle Insulator, also known as a spool insulator, is a type of low-voltage electrical insulator commonly used in distribution networks to support and insulate conductors. Shackle insulators are compact, durable, and designed for horizontal or vertical mounting on poles or walls. They are widely utilized for low voltage (up to 33 kV) applications, particularly

What is Shackle Insulator? Construction, Working, Types, Advantages, Disadvantages & Applications Read More »

What is Pin Insulator? Construction, Working, Types, Advantages, Disadvantages & Applications

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

What is Pin Insulator? Construction, Working, Types, Advantages, Disadvantages & Applications Read More »

What is Strain Insulator? Construction, Working, Types, Advantages, Disadvantages & Applications

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.

What is Strain Insulator? Construction, Working, Types, Advantages, Disadvantages & Applications Read More »

What is Suspension Insulator? Construction, Working, Types, Advantages, Disadvantages & Applications

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.

What is Suspension Insulator? Construction, Working, Types, Advantages, Disadvantages & Applications Read More »

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

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

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

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

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

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

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

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

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

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

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.

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