Assuming constant element resistance and neglecting the rather epensive option of using a transformer to boost voltage to 400 and rewiring all elements in parallel, you will get only (240/400)^2 or 36% of the rated input power on 240 volts. This translates to 1/0.36 = warmup times about 2.8 times longer than normal for the power rating. Re: 440V 3Ph without neutral transform to 220V AC Single phase. 05/07/2009 9:06 AM. You want to buy a transformer that has a little higher KVA rating than the loads you are going to connect. If your valve is a 3 phase monster, you will need three transformers. I suspect it only has two wires and therefore is a single phase device. It is a conversion calculator which changes the current in Amps (A) and the voltage in volts (V) to power results in Kilowatts (kW). The first step is to select the current type. It can either be Direct Current denoted as (DC) or alternating current (AC). Look at the table of motor kW to cable size chart. The chart is prepared based on the direct online start and star-delta starting. Note that, using aluminium cable for low rating motor up to 1.5kW/2HP motor is not recommended. Here 2R indicates Two Run cables. The cable size chart is suitable for both single-phase and three-phase. The country city power grid is 110V 60 Hz, 220V 50 Hz, 240V 50 Hz, 400V 50 Hz, 480V 60 Hz etc, the frequency (Hz) is 50 Hz or 60 Hz AC power, but as the specialization in particular industries like aviation and some education purpose, it requires specified Hertz and Volts, e.g. 115VAC 400 Hz. The voltage in India is 220 volts, alternating at 50 cycles (Hertz) per second. This is the same as, or similar to, most countries in the world including Australia, Europe and the UK. However, it's different to the 110-120 volt electricity with 60 cycles per second that's used in the United States for small appliances. 15kVA 3-Phase 400v 50Hz/480v 60Hz Frequency Converter. $7,189.59. SKU: HZ-50-3315. 15 kVA three phase 380V/400V/415V to 460V/480V frequency converter, easy converting 208V - 240V to 380V in one step, output single phase or three phase with pure sine wave, supply the electronic instrument with high quality electricity. Quick View. Rta: // The first thing to do is multiply the Hp by 746, then you must divide the previous result between the multiplication of the voltage line line, the efficiency, the root of three and the power factor, giving as a result: 12.33 Amps . (80Hpx746) / (4160Vacx0.84 × 0.8x√3) Example 2: After all the cells are filled with the appropriate values, you can click on the ‘Calculate' button to execute the conversion. Formula for calculating the three phase I (A) =1000 x S (VA) / (√3 x V L-L (V)) = S (VA) / (3 x V L-N (V)), which means that the current in amps is calculated by multiplying 1000 by the apparent power in volt-amps. 0j20M.

how to convert 400v to 220v