Relay setting details
How to set the various setting value of a relay depend upon the electrical motors ?
its very simple first note the current rating of the motor on the name plate then adjust the current setting just above the name plate motor of the motor
Calculation of electrical cable size
Will u please give the formula, for selection of cable sizing (both copper and aluminium) depend upon the electrical loads...
It depends on a lot of factors like current density for mm^2 temperature is the cable on cable trays or buried or inclosed in PVC is that a 3 phase cable multicore or what and also depends on the voltage but in general making a current density 2 A/mm^2 for copper for simple applications is good.
First we calculate the amp rating of the equipment.for cu we take 2.5A & for alu we take 1.5 to 1.7A for 1sqmm cable.
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