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  • Users: PowerSynch
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  1. PowerSynch

    Fuse and Circuit Breaker Selection Method

    Hello All, What is the method for selection of fuses and circuit breakers when they are used in the same circuit. For axample we have a 75KW motor on a 415V system, If we choose a 160A circuit breaker, what should the fuse size be in the same circuit to buck up the C/B? Is there a ratio between...
  2. PowerSynch

    Minimum short circuit fault level calculations

    What is the requirement for calculating the minimum fault levels? According to IEC Standard, Maximum and Minimum short circuit levels must be produced. I have a SKM PowerTools for Windows software which calculates Comprehensive Fault Currents without a mention of the minimum fault currents. If...

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