Generally there are two phases - Single phase or three phase.Voltage Drop - Generally we take the percentage of voltage drop and the most common percentage of voltage drop is 3 percent and 5 percent. Power & Amp - The amount of voltage running through the lines is related to the power and amp. The power and amps depends on the type of circuit. . 2003. 8. 19. · Cos θ = Power Factor: Motors

Single Phase. 746 x HP. E x I x PF. Input Watts. V x A. AC Efficiency and Power Factor Formulas. To Find. Efficiency. Power Factor. Three Phase.

3 Phase Induction Motor current calculator is used to calculate the rated and full load amperes of the motor. Enter the rated volts, amps, power, 

3 Phase AC Motor Starting & Running Current Calculator getcalc.com's Starting & Running Current Calculator is an online electrical engineering tool to calculate starting, running & full-load current of 3 phase AC induction motor. Definition & Formulas Starting & Running current are the three important factors for the rating of AC induction motor.

Electrical. Single & Three Phase Line kVA calculator is an online tool used in electrical engineering to measure the unknown quantity by two known quantities applied to the below formulas for single phase and three phase connection. To calculate kVA, you need to enter the known values of voltage and the current into the respective fields.

To figure out how many amps does a motor with certain kW power have, we have to rearrange this equation a bit. We get the 3-phase current formula like this: I (Amps) = P (kW) × 1,000 ÷ (V (Volts) × PF × 1.732) Using this power formula, we can, for example, do a 3-phase motor kW to amps calculation.

A heater is a device that protects a motor from thermal overloads due to excess current in the windings. According to the NEC, the overload rating must not exceed 115% of the full-load current of the motor. For example, the full-load current of a 10 HP motor at 230V is 28 Amps. Therefore, the heater must be sized for 28 * 1.15 = 32.2 Amps.

Conversion Formula · 5 HP Motor single phase Amps = 5 * 746 / (E * %Efficiency * PF) · 5 HP Motor Three phase Amps = 5 * 746 / (E * %Efficiency * PF * 1.73) 

Jul 20,  · I have a pump with Diesel engine 1450 RPM, 160 KW, Soi wants to change the diesel engine by Electrical Motor 1450 RPM, 160 KW, 3 Ph, 380 Volts, 50 Hz, so I need to know how many Amp. I need for each one phase ( they write in the motor 280 Amp is this total for all 3 ph or 280 Amp for each one phase ) Cheers.

Locked Rotor Current (IL) From Nameplate Data ; Three Phase: IL = 577 x HP x kVA/HP E ; Single Phase: IL = 1000 x HP x kVA/HP E 

P (kW) = (I (Amps) × V (Volts) × PF × 1.732) ÷ 1,000. As we can see, the electrical power in the 3-phase AC circuit depends on: I (Amps): Electrical current, measured in amps. The more amps