Voltsx Amps / 1,000 = kVA. However, you need to add an extra component in the formula for computing a three-phase transformer: the square root of 3 (√3) or 1.732. This constant is necessary for three phases, as coils could not simultaneously produce a
01 kW: 0.1359621617 horsepower (metric) 1 kW: 1.3596216173 horsepower (metric) 2 kW: 2.7192432346 horsepower (metric) 3 kW: 4.0788648519 horsepower (metric) 5 kW: 6.7981080865 horsepower (metric) 10 kW: 13.596216173 horsepower (metric) 20 kW: 27.1924323461 horsepower (metric) 50 kW: 67.9810808652 horsepower (metric) 100
Motorsof higher speed usually take a lower current than that shown in the table; while motors of lower speed usually take higher current. Wide variations from these figures can arise, especially on single phase motors, and engineers should, whenever possible, determine the actual f.l.c from the motor rating plate in each case. Single Phase Motors
ACsingle phase current I (A) = 746 x P (HP) / (pf x V (V)) in Amps. Note: The single-phase AC current I (A) can be measured through the phase side only. Example: A 10 HP AC single phase motor has 230 Volts of voltage flow with 0.86 power factor, calculate the current. AC Current = 746*10 / (230*0.86) = 37.71 Amps. HP to Three phase amps
Theformula to convert kVA to amps in a three-phase circuit looks like this: I (A) = S (kVA) × 1,000 / √3 × V L-L(V) For a balanced load where the current is the same on all phases, the current I in amps is equal to 1,000 times the apparent power S in kVA divided by the square root of 3 (1.732) times the line to line voltage V .
Thephase voltage multiplied by 1.73 gives us the line voltage: 277V (As measured from phase to neutral or gnd) * 1.73 = 479.21 (or 480V nominal) which is the most common 3 phase circuit in industrial applications. 480V 3ph is used to power motors and tank heaters while the 277V single phase of the 3 phase system is commonly used for
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5.5 kw to amps 3 phase
