For worst-case results, motor starting analyses are generally performed considering the weakest source.Motor starting analyses are generally performed for the largest motor connected to a switchboard.The detailed analysis may be performed with the help of available software. The spreadsheet performs an iterative calculation based on pre-start load inputs and starting motor data. Deciding the cable size/number of runs etc.Knowing voltage drop during starting conditions for given motor details and hence deciding the key parameter during design (say max allowable starting current).What should be the rating of the generator (or nos of generator operated in parallel) for a given load and largest motor size.What is the largest motor size that can be started with a given generator rating.This is very helpful especially for quick checks as follows:
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