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  • Users: Fazlay
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  1. Fazlay

    Distribution System Overhead Line Configuration

    Of a overhead distribution line, I have the Three Phase Geometrical Mean Spacing which is 58.371 Inches and Line to Neutral Spacing 48 Inches. Also have the sequence components. Is there any way to find the Phase to Phase distance?
  2. Fazlay

    Loss factor

    How to derive this formula of loss factor
  3. Fazlay

    Autocad map Scale

    i have a DWG formated(autocad file) map of an area but in the map the scaling isn't mentioned .To work with an area map real scaling is very important. How can i find the real scaling of the map ?
  4. Fazlay

    Relay pick up current

    As far i know for a protection relay, Pick up current (Min Trip Current) = CT ratio × PSM (plug setting) According to this formula,For below information i got 68A pick up current. Is this correct?
  5. Fazlay

    TCC curve in excel

    I was trying to draw TCC curve of some relays. While going through my office's old files, i found a excel file where previous employees (10-15 years ago) draw TCC curves of some relays . I couldn't figure out how they have manipulated required data. Here is the file that i found . Relay...
  6. Fazlay

    How to draw TCC curve of Relay ?

    for co-ordination study i have to draw the TCC curve of a relay , I have the specification of the relay i have attached the specification . Can any one give me any idea (or resource to study ) how can i draw the time vs current curve for this relay ?

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