In my opinion, V it is line-to-neutral in a three phase system then from HP to W the factor is
1/.746*1000/3 and the product between power factor and efficiency [average]=0.745:
I=HP/.746*1000/3/.745/V=599.8*HP/V
I use
i = (HP X 746)/(sqrt3 x 0.95 x 0.8 x V)
i = 565 x HP/V
0.95 for line V vs motor V ie 480 vs 460
0.8 ~ pf x eff
the likely used a smaller number for pf x eff
Yes, that is the way. JuliusRight divided HP by 746 instead of multiplying it to find watts.
And still more hilarious jraef objection to it.
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Yes, that is the way. JuliusRight divided HP by 746 instead of multiplying it to find watts.
Thanks.I was Julius.. Wrong!:weeping:
i = (HP X 746)/(sqrt3 x 0.95 x 0.8 x V)
i = 565 x HP/V
0.95 for line V vs motor V ie 480 vs 460
0.8 ~ pf x eff
the likely used a smaller number for pf x eff