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The closing bounce time is the time between the initial contact of the contacts of a circuit breaker when it is closed, followed by separation, pos...

Vacuum circuit breakers, without exception, adopt a docking contact method. After the moving contact touches the stationary contact, it cannot move...

When there is no external force acting, the moving contact generates a closing force on the inner cavity under atmospheric pressure, which causes i...

Cumulative allowable wear thickness of dynamic and static contacts mm 3.0

Part of the metal vapor condenses on the metal cylinder (shielding cover), and the arc is extinguished at natural zero crossing, and the dielectric...

The contact opening distance is small, and the contact opening distance of a 10KV vacuum circuit breaker is only about 10mm.

1-minute power frequency withstand voltage (kV) 28 42 (pole to pole, pole to ground) 48 (break to break)

Vacuum circuit breakers can usually be divided into multiple voltage levels. Low voltage type is generally used for explosion-proof electrical appl...

The "vacuum circuit breaker" is named after its high vacuum insulation medium for both the arc extinguishing medium and the contact gap after arc e...

The ceramic shell vacuum arc extinguishing chamber is mainly composed of airtight insulation shell, conductive circuit, shielding system, contacts,...

The gas pressure inside the vacuum arc extinguishing chamber increases by 1-2 orders of magnitude, and as the number of refining cycles increases, ...

According to the different installation of vacuum arc extinguishing chambers in switchgear, they can be divided into vacuum arc extinguishing chamb...