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  • Users: Henri_EE
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  1. Henri_EE

    Showing Two Motor HP Values on a 480V MCC One Line

    See this image snipped from an older 480V MCC one line drawing I came across today: img https://res.cloudinary.com/engineering-com/image/upload/v1696424511/tips/480V_MCC_Motor_Load_Notation_vlwwur.jpg] I've never seen this done before, showing two different motor HP values (5 and 7.2) on the...
  2. Henri_EE

    ETAP/SKM Modeling of Allen-Bradley 140G Series Circuit Breakers with ETUs

    I am having issues with the modeling of Allen-Bradley 140G Series molded case circuit breakers (MCCBs) with electronic trip units (ETUs) in SKM and ETAP software. The issues are with the maximum clearing times of these devices in the fault current region, which is extremely important since it...

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