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Switchgear Riddle No.9 – Medium Voltage Busbar Temperature Rise

  • This topic has 2 replies, 1 voice, and was last updated 2 years, 9 months ago by Sinnadurai Sripadmanaban.
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  • 2021-08-03 at 11:08 am #506
    Ikhan

      How to calculate the suitable busbar according to temperature rise
      How to calculate the suitable busbar according to temperature rise

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    • 2021-08-03 at 11:08 am #1945
      Hamid

        For enclosed switchgear it is seen that the oxidation of aluminium or copper starts at about 85-90

        2021-08-03 at 11:08 am #2402
        Sinnadurai Sripadmanaban

          Some people say that surface area too should be considered because if the cooling surface area is high cooling takes place quickly and temperature rise becomes lower. For example consider a cross section of 200mm^2. If you choose 40x5mm,surface area will be 90 x length while for 50x4mm it will be 108 x length.

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