Answer / nagesh.patwari

Yes there's a thumb rule for cable size calculation for 1sqmm Aluminum cable can carry 2Amps and 1 Sqmm Copper wire can carry 4 Amps.

However the cable size increase above 100 Sqmm this thumb rule can not be considered. You need to refer the cable size calculation chart.

define reactive power?

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What is the disadvantage in proportional controller?

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Earth bits close or open. Which is correct

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