Air Circuit Breaker Parts

An air circuit breaker is a circuit operation breaker that operates in the air as an arc extinguishing medium at a given atmospheric pressure.

Air circuit breaker parts.

Air circuit breaker is a switchgear device used to provide overcurrent and short circuit protection for circuits ranging from 800 amps to. A circuit breaker in which the contacts open and close in the air at atmospheric pressure is defined as an air circuit breaker. It operates in air where air blast as an arc quenching medium at atmospheric pressure to protect the connected electric circuits. 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.

The working of air circuit breakers is similar to miniature circuit breakers. Unlike a fuse which operates once and then must be replaced a circuit breaker can be reset either manually or automatically to resume. Most air circuit breakers will have their arc chutes positioned above the contact assemblies as the natural tendency of the arc is to rise and aid in extinguishing the arc. The arc is hurried along the process by various components in the arc chute such as puffers blowout coils arc runners and arcing horns.

For interrupting arc it creates an arc voltage in excess of the supply voltage arc voltage is defined as the minimum voltage required maintaining the arc. Air circuit breaker parts and details this is air circuit breaker not air blast circuit breaker air blast circuit breaker required air preassure from reservior. This circuit breaker increases the arc voltage by mainly three different ways. The arc in the air circuit breaker runs in a mixture of nitrogen oxygen and copper vapour.

The air circuit breaker does the same but in different manner.