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earthing switch EK6 indoor type
earthing switch EK6 indoor type

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indoor HV earthing switch absorbs advanced new technics from domestic and aborb

Working Principle

When operate driving mechanism to close earthing switch, applied moment gets principle axis to overcome drag torque, to spur console panel to turn under the closing direction, and gets moving contacts rocker to via spring dead point, and then spring will release energy, to close earthing switch quickly. In closing position, moving contact firmly connected with fixed contacts flange part.

Technical Parameters

  product model                                      /             EK6-40.5/31.5-280

rated voltage(kV)                                                                                  35

the largest working voltage scope(kv)                                                       40.5

4s stable current(kA)                                                                           31.5

moving stable current( peak value)                                                           80

close-open current(peak value)                                                                80

pole central distance(mm)                                                                      280

close-open speed(m/s)                                                                         >6

main circuit contacting resistance(ohm)                                             <120

 

 Working Principle

 When operate driving mechanism to close earthing switch, applied moment gets principle axis to overcome drag torque, to spur console panel to turn under the closing direction, and gets moving contacts rocker to via spring dead point, and then spring will release energy, to close earthing switch quickly. In closing position, moving contact firmly connected with fixed contacts flange part

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