At the end of this video you will be able to convert your generator output voltage from 380v to 220v or vice versa. 12 lead reconnectable generator voltages 72V to 110V DC/DC converter, 120W. The DY120-DD110-72 is a 110V converter of 120W. The converter can convert 72V to 110V DC and supply a DC current of 1,1A to 1,35A. In. 72VDC. Input range. 61.2 - 82.8VDC. 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. Using Line to Line Voltage. To convert amps to watts for a three-phases AC circuit using line to line voltage, multiply amps by volts by the power factor by the square root of 3. Conversion formula: watts = amps × volts × power factor × √3. Abbreviated formula: W = A × V × PF × √3. Alternate abbreviation: P = I × V × PF × √3. You usually have devices with known wattage; let’s say a 3,000-watt air conditioner. Sizing circuit breakers is all about amps. You will have to know how to convert 3,000W to amps. Namely, if you run a 3,000W unit on a 220V circuit, the current is calculated like this: 3,000W / 220V = 13.63 amps. The speed of an Electric Motor is determined by Voltage and Frequency. So, a 400V 50Hz Motor will run at rated speed at 400V x 50Hz and half rated speed at 200V x 25Hz. Provided this Voltage x Frequency ratio is maintained, the Motor will operate at full Torque – ideal in a Lathe application where speed must remain constant even when a load Simply input the phase number, the apparent power in kVA, and the voltage in volts. Hit 'Calculate' to receive the current in amps. Enter phase #: Single phase Three phase. Enter kilovolt-amps: kVA. Select voltage type: Line to line voltage Line to neutral voltage. Enter volts: Wattage (watts, W) = Current (amperes, A) × Voltage (volts, V). Input how many appliances you will be using. Input how many hours a day an appliance runs. To add a new appliance, press the "+ Add Appliance" button. Online Electricity Cost Calculator. Electricity Price per kWh: Enter the price of energy per kilowatt-hour. .

how to convert 400v to 220v