Phone Number : 13587461262
April 14, 2020
The working principle of the vacuum circuit breaker is: when the dynamic and static contacts are opened under the action of the operating mechanism, an arc is generated between the contacts, and the surface of the contacts evaporates steam at high temperature. Due to the special shape of the contacts, the current A magnetic field is generated when passing, and the arc moves rapidly along the tangent direction of the contact surface under the action of this magnetic field, and part of the metal vapor condenses on the metal cylinder (shield), and the arc extinguishes when the natural zero crossing occurs. The medium strength recovered quickly.
