Thenwe can choose the cable that has the current-carrying capability of 17.82 A, which is the cable with the cross-section of 1.5 mm2. Below is a table with examples of calculating 3 phase with the known kW: NO KW Voltage Ampere Safety Factor 125 % Cross Section Cable. 1 4KW 380V 7.61A 9.51A 0.75 mm². Horsepowerto Watts Conversion. According to the University of Wisconsin, one horsepower equals 746 watts. Since you have a 7.5 horsepower motor, multiplying 7.5 by 746 results in 5,595 watts of power being consumed. This is your starting point. P= V x I Cos Φ for 1 phase load . Rated Load Current = P / (1.732 x V x Pf x Eff) I= 90000 / (1.732 x 415 x 0.8 x .99 ) =90000/540= 157 amp ~ 157 A. in ideal case 157 amp shall be current capacity of cable and if we look at the cable size chart we will find that for 157 amp the current rating cable size 70mm2 cable size would be perfect. phase2 apparent power = 70 x 230 = 16,100 VA = 16.1 kVA. phase 3 apparent power = 82 x 230 = 18,860 VA = 18.86 kVA. Total three phase power = 18.4 + 16.1 + 18.86 = 53.36 kVA. Similarly given the power in each phase you could easily find the phase currents. If you also know the power factor you can convert between kVA and kW as shown earlier. Anoperating three-phase motor has voltages measured with a voltmeter on each phase of 453, 458, and 461 volts, the amperage measured on each phase with an ammeter is 14.1, 13.9, and 13.8 amps, the power factor is given as 0.82. was measured in The average voltage is 453 plus 458 plus 461 divided by 3 which equals 457 volts. Fora 400 amp service, a whole house generator should be sized based on your total electrical load, but a rough estimate might be in the range of 40-60 kW. How many watts is 200 amp 3-phase? A 200 amp 3-phase service can deliver up to approximately 69 kW (kilowatts) of power, assuming a line-to-line voltage of 480V. wubZIA. DeltaVFD-VL, 3-Phase Elevator Drive, 5.5 kW to 22 kW. ₹ 11,000/ Piece Get Latest Price. Application: Elevator For PM and IM Motor. Model Name/Number: VFD-VL Series. Motor Power: 5.5 kW to 22 kW. Input Voltage: 460 V. P= V x I Cos Φ for 1 phase load . Rated Load Current = P / (1.732 x V x Pf x Eff) I= 90000 / (1.732 x 415 x 0.8 x .99 ) =90000/540= 157 amp ~ 157 A. in ideal case 157 amp shall be current capacity of cable and if we look at the cable size chart we will find that for 157 amp the current rating cable size 70mm2 cable size would be perfect. AbsoluteGenerators specializes and inventories cost-effective 3-phase power solutions from 5 kW to 100 kW. Please see our locked rotor design code guide and generator power calculator for more assistance with purchasing. Please also call in to begin working with us on your next 3-phase power need application. NEMA L16-20R (20 Amp 480) Example A 200 volt, two-phase circuit operating at 0.8 PF is loaded with 10 kW load. Find the current. Solution: I = [10 * 1000] / [200 * 0.8 * 2] = 31.25 A. Three phase kW to Customer 7500 watts at 240 volt SINGLE phase is 31.25 amps (watts divided by volts)---7500 watts / 208 volts=36.06 times 1.732 is= 62.46 amps----shouldn't the amperage on 3 phase be lower than single phase ??? Jason : Now that I look at it again, I believe we are both misapplying the formula. 1000kW. 8,333 amps. 120 volts. 11.1 kW to amps. 11 Kilowatts to Amps is a tool to convert 11 kilowatts to amps. To calculate how many amps in 11 kW, multiply kW to 1,000, then divide by volts.

7.5 kw to amps 3 phase