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The microcomputer protection device is a high-tech product for power automation that integrates multiple functions such as measurement, control, mo...

Where vacuum circuit breakers are used, microcomputer protection devices will inevitably be used.

Vacuum circuit breakers should undergo power outage inspection and maintenance once a year to ensure normal operation.

The circuit resistance value is a parameter that characterizes whether the connection of the conductive circuit is good, and various types of produ...

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...