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sf6 Load break switch high-voltage switchgears density sensor wika

Integrating switchgear breakers and contactors into a ...· The vacuum contactor is a special design of load-break switch that was developed to switch 3-phase low and medium-voltage electric motors. See Fig. 7 . With the coil energized by the control circuit, the armature is rotated around the pivot, compressing the opening spring and closing the contacts, with assistance from the contact force spring.

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