Classification of compressed air circuit breakers

Compressed air is a major component of the circuit breaker arc chamber. By compressed air blowing arc mode, circuit breaker chamber is divided into horizontal and vertical blow blowing two kinds. In practical applications, usually blow-out of two ways exist, but mainly in a blow-out mode. Interrupter several basic forms.Compressed air circuit breaker having an insulating spacer is a cross-blown arc chamber. The arc perpendicular to the axial direction of airflow. The arc blowing compressed air separator, a zigzag shape so the arc length increases, both in close contact with the separator, the removal of the ionization accelerating processes. Lateral approach, while blowing the arc extinction is better, but interrupter structure is complex, bulky, generally used only for the lower voltage level circuit breaker (such as a generator circuit breaker), does not apply to high voltage, large capacity applications.Is one of several forms of mcb circuit breaker. Flow direction parallel to the arc axis. Vertical arc blow blowing can be divided into one-way and two-way arc blow. In unidirectional arc blow, the two contacts can be both solid (stick), or a hollow and the other is solid. In the bi-Puffer, the two contacts are hollow.Solid contact is air circuit breaker longitudinal blowing interrupter. High air movement along the axial direction and strong arc blow-out, thereby reducing the diameter of the arc surface cooled and removed from the arc gap ionized particles. The disadvantage of this structure is possible to be near the top of the contact and vulnerable blowing burning arc, the arc gap is mcb circuit breaker to have a metal vapor arc gap dielectric strength, arc easily renewed.Having a hollow and a solid one-way vertical blow contact interrupter. Air away from the arc gap ionized particles, through the hollow stationary contacts quickly to the atmosphere. Blowing the arc spout from the static contact face moves to its inner surface. Solid contacts using conical ends.Is a free jet. In breaking, the real heart to leave static contact contact the interrupter external arcing. When the movable contact into the arc chamber body and completely open vents, the compressed air into the atmosphere, so that the arc by a strong horizontal and vertical blow blowing.Is a two-way contacts hollow blown arc interrupter. Compressed air blowing the beginning of the arc radial arc, and then divided into two vertical airflow blowing arc. For two vents, two arc roots are in the inner surface of the contact. Bi-Puffer Puffer more than one way to quickly remove ionized particles from the arc gap. But lower pressure arc gap. In order to improve the arc gap pressure, which can be made of a hollow contacts shrink-section, a two-way asymmetrical vertical blow.