AC high voltage vacuum circuit breakers type indoor series is a three phase AC 50Hz, rated voltage of 40.5kV inside the indoor
unit, suitable for switching various loads of different nature and frequent operation of the occasion, for mining, protection and control of the business, power plants and substations with electrical installations. This product complies with the relevant requirements of GB1984, JB3855 and IEC62271.
ZN85-40.5/1600-25 Vacuum Circuit Breaker, vacuum, when the dynamic and static contact in the Operating mechanism under the action of electric trip, the contact will produce a vacuum arc, and because of the special structure of the contact, the gap in the contact Also produce the appropriate longitudinal magnetic field, to promote the vacuum arc to maintain the diffusion type, and make the arc evenly distributed in the contact surface combustion, to maintain a low arc voltage, current zero crossing, the residual ions, electrons and metal vapor in the micro Sec order of magnitude within the time can be compounded or gathered in the contact surface and shield, interrupter dielectric fracture strength of the fracture is quickly restored, so the arc was extinguished to achieve the purpose of breaking, the vacuum circuit breaker using magnetic field control Vacuum arc, which has a strong and stable breaking current capacity.
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Product Categories : Vacuum Circuit Breaker > 40.5kV Vacuum Circuit Breaker