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Electronics

BJT as Switch

BJT as a Switch Definition A BJT (bipolar junction transistor) is defined as a device that acts as a switch by controlling the base-emitter current to change the emitter-collector resistance. A switch creates an open circuit (infinite resistance) when in the ‘OFF’ position and a short circuit (zero

By Encyclopedia 08/29, 2024
Power Systems

What is a Mixed Media Circuit Breaker?

What is a Mixed Media Circuit Breaker? Mixed media circuit breaker definition Mixed-medium circuit breaker is a high-voltage circuit breaker that uses a variety of media (usually a combination of gas and solid materials) as insulation and arc extinguishing media. This type of circuit breaker is desi

By Encyclopedia 08/24, 2024
Power Systems

What is an Air Switch?

What is an Air Switch? Air circuit breaker definition Air circuit breaker is a kind of high voltage circuit breaker which uses air as arc extinguishing medium. Compared with other types of high-voltage circuit breakers such as SF6 circuit breakers and vacuum circuit breakers, air circuit breakers ar

By Encyclopedia 08/24, 2024
Power Systems

What is SF6 Circuit Breaker?

What is SF6 Circuit Breaker? SF6 Circuit breaker definition SF6 circuit breaker is a high-voltage circuit breaker using SF6 gas as insulation and arc extinguishing medium. SF6 gas has excellent insulation performance and arc extinguishing ability, which makes SF6 circuit breaker become one of the wi

By Encyclopedia 08/24, 2024
Power Systems

What is a Vacuum Circuit Breaker?

What is a Vacuum Circuit Breaker? Vacuum circuit breaker definition Vacuum circuit breaker is a kind of high voltage switchgear which uses the arc extinguishing characteristic in vacuum environment to disconnect and connect the high voltage circuit. Compared with traditional circuit breakers such as

By Encyclopedia 08/24, 2024
Power Systems

What is an Oil Circuit Breaker?

What is an Oil Circuit Breaker? Oil circuit breaker definition The oil circuit breaker is an early type of high voltage circuit breaker that uses insulating oil as an arc extinguishing medium and an insulating medium. Structure Underframe Insulator Transmission system Conducting system Contact Arc s

By Encyclopedia 08/24, 2024
Machines

What is a Centrifugal Switch?

What is a Centrifugal Switch? Centrifugal Switch Definition A centrifugal switch is an electrical component that activates based on the centrifugal force generated by a motor’s rotating shaft to control motor start-up. Operational Mechanism A single-phase AC engine has a centrifugal switch inside it

By Encyclopedia 08/12, 2024
Power Systems

What is a Vacuum Switchgear ?

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

By Encyclopedia 07/30, 2024
Power Systems

What is Indoor Switchgear ?

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

By Encyclopedia 07/30, 2024
circuit diagram

Circuit diagram for controlling multiple lights with a single switch and Circuit diagram for controlling multiple lights with multiple switch

Circuit diagram for controlling multiple lights with multiple switch Circuit diagram for controlling multiple lights with a single switch

By Master Electrician 07/12, 2024
circuit diagram

The circuit diagram of Water level switch

The circuit diagram of Water level switch

By Master Electrician 07/11, 2024
Power Systems

What is an Arc ? | Arc in Circuit Breaker

Before going through details of arc quenching or arc extinction technologies employed in circuit breaker we should know first what is arc actually. What is an Arc? During opening of current carrying contacts in a circuit breaker the medium in between opening contacts become highly ionized through wh

By Electrical4u 03/25, 2024

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

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BJT as Switch

What is a Mixed Media Circuit Breaker?

What is an Air Switch?

What is SF6 Circuit Breaker?

What is a Vacuum Circuit Breaker?

What is an Oil Circuit Breaker?

What is a Centrifugal Switch?

What is a Vacuum Switchgear ?

What is Indoor Switchgear ?

Circuit diagram for controlling multiple lights with a single switch and Circuit diagram for controlling multiple lights with multiple switch

The circuit diagram of Water level switch

What is an Arc ? | Arc in Circuit Breaker

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