Fluke 43B
Applications Manual
46
10 Move the left cursor to the
beginning of the inrush.
11 Select the right cursor.
12 Move the right cursor to the
end of the inrush.
Read the peak currents at the cursors. Can fuses and breakers withstand
these currents? Are conductors properly sized?
Read the time between the cursors. Can fuses and breakers withstand the
inrush current during this period? Fast acting breakers and fuses may trip.
13 Repeat this measurement for phase 2 and phase 3.
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