Air Circuit Breaker Parts And Function

The working of air circuit breakers is similar to miniature circuit breakers.

Air circuit breaker parts and function.

Unlike a fuse which operates once and then must be replaced a circuit breaker can be reset either manually or automatically to resume. An air circuit breaker is a circuit operation breaker that operates in the air as an arc extinguishing medium at a given atmospheric pressure. There are several types of air circuit breakers and switching gears available in the market today that is durable high performing easy to install and maintain. Air circuit breakers are most commonly used in commercial and industrial applications and provide overcurrent protection for 800 1000a circuits.

It operates in air where air blast as an arc quenching medium at atmospheric pressure to protect the connected electric circuits. Air circuit breaker sf6 circuit breaker vacuum circuit breaker and oil circuit breaker have been discussed in a short detailed just to understand the basic concept about these circuit breakers. They are typically used for low voltage energy distribution under 450v but can be used for medium voltage distribution as well 1000v and up. When the current is greater than 100a these gases get dissociated into atoms which changes the characteristics of the arc on account of the associated change in its thermal conductivity.

A circuit breaker in which the contacts open and close in the air at atmospheric pressure is defined as an air circuit breaker. In this article the different types of circuit breakers i e. Air circuit breaker acb air circuit breaker acb is an electrical protection device used for short circuit and overcurrent protection up to 15kv with amperes rating of 800a to 10ka. What are air circuit breakers.

And their subdivision is also discussed along with advantages and disadvantages. The arc in the air circuit breaker runs in a mixture of nitrogen oxygen and copper vapour. Air circuit breaker is a circuit breaker for the purpose of protecting low voltage circuit mainly for energizing and cutting off high current.