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Fluke 433/434
Users Manual
15-4
Tips and Hints
Check the peak currents and their duration. Use the Cursor for readout of momentary
values. Check if fuses, circuit breakers, and conductors in the power distribution system
can withstand the inrush current during this period. Check also if phase voltages stay
stable enough.
High peak currents can cause circuit breakers to trip unexpectedly. Measuring Inrush
Current can help in setting trip levels. Since the Analyzer simultaneously captures Inrush
Current and Voltage Trends you can use this measurement to check voltage stability as
large loads come on line.