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  1. jpatricksss

    Plot LV Circuit Breaker Time Current Curve Using Equations

    How to plot the time-current curve from the LV circuit breaker parameters to determine tripping times? What are the standard features of the time current curve and what properties of the CB do you need to know to plot? E.g. I want to plot the time-current curve for In = 100 Amp CB to BS EN...
  2. jpatricksss

    Ground Potential Rise > Surface Voltage Potential - possible?

    Hi all, Is it possible to have a surface voltage potential (surface voltage profile) which exceeds the grid potential (GPR)? Refer to Figure B.8 of IEEE (image attached). Is this what it is showing us? Thanks to all. JP

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