Ohmmeter Working and Types
What is an Ohmmeter? An ohmmeter is an electrical instrument used to measure the resistance in a circuit or a component. The opposition to the flow of electric current is a measure of resistance in […]
What is SF6 Circuit Breaker?
SF6 circuit breaker uses SF6 (Sulfur Hexafluoride) gas as an air quenching medium. This gas is electro-negative and it has high dielectric strength to absorb free electrons. This is very effective for high voltage applications […]
Air Break Circuit Breaker (ACB)
Air break circuit breaker uses atmospheric pressure in air as an air quenching medium. This type of circuit breaker employs a high resistance interruption principle. The arc runners and chutes increase the arc length. Moreover, […]
Air Blast Circuit Breaker
What is Air Blast Circuit Breaker? In this Air blast circuit breaker, it uses a high-pressure air as the arc quenching medium. In this type of circuit breaker when the contacts are separated, high-pressure air […]
Oil Circuit Breaker
What is an Oil Circuit Breaker? The oil circuit breaker has an insulating oil which is used as an arc quenching medium for arc extinction. Oil has better insulating property than air. It consists of […]
Vacuum Circuit Breaker
The vacuum circuit breaker (also known as vacuum interrupter or VCB) uses the arc quenching process in the vacuum as a switching medium. The vacuum has the highest insulating strength. So, it has far superior […]
Difference Between Fuse and Circuit Breaker
The fuse and circuit breaker are circuit protection devices used to protect the system from over-current conditions in power system industries. Both do the same but differs from their various characteristics and working principle. Let’s […]
Circuit Breaker
By definition, a Circuit breaker is a mechanical device that isolates the faulty system from a healthy system of the power system by opening or closing the circuit. There are different types of circuit breakers […]
Difference Between Moving Iron and Moving Coil Meter
The difference between Moving iron meter and Moving coil meter is, moving iron meter operates on electromagnetic principle. Whereas, moving coil meter works on DC motor principle. Moving Iron meter measures DC current, AC current, […]
Moving Coil Meter
Moving Coil Meter is a widely used measuring instrument because of its accuracy and sensitivity. These instruments are directional and they can be used for DC measurements. This device can be used as an ammeter, […]