# How do you hook up 3 phase to a 10 hp compressor?

First you have to have three phase power coming in. 3 phase are three hot wires working together on a syne wave. If you have 3 phase coming in, hook the three hot wires into the compresser, if it runs backwards, trade places with two of the wire and let the third one alone and you should be running.

### Can you change 3 phase compressor to single phase compressor?

If you are referring to an air compressor motor then yes. A single phase and three phase motor can be interchanged. They have to have the same horsepower though because the compressor manufacturer has calculated the needed HP to turn the compressor over. You may need to rewire for the single phase motor unless the single phase voltage is the same as what the three phase voltage was. If this is the case just use…

### Can you replace the 5HP 3-phase motor on your compressor with a single phase motor of the same HP?

Probably. 5 hp. is 5 hp., regardless of the phases that drive it. But for practical implementation, you will see following problems: 1] Single phase motor will demand for neutral connection. 2] As entire current for 5HP load will be now on single phase, your conductor will be loaded 1.732 times its rated load ( for 3 phase motor design) Hence it may call for increase in conductor cross section. 3] As entire 5 HP…

### If 1 hp and 220 v find amp?

The formula you are looking for is I = W/E. I = 746/220 = 3.39 amps <<>> Rule of thumb Current (Amps) of Single phase 240Vac motors = HP x 5 For Single phase 220Vac use Rule of Thumb and add 0.5A Current (Amps) of three phase 400Vac motors = HP x 1.5 Good for single phase from fractional HP values up to 7.5 HP. Good for three phase HP values up to 30 HP

### What is the power consumption of a single phase motor vs a similar sized three phase motor?

To show the difference in kWs a 10 HP motor will be used. The single phase current for a 10 HP motor is listed as 50 amps at 230 volts. The formula for kWs single phase is I x E x pf/1000 = 50 x 230 x .9/1000 = 10350/1000 = 10.35 kw. The three phase current for a 10 HP motor is listed as 28 amps at 230 volts. The formula for kWs three…

### What is the power consumption of a load when running on single phase or on three phase?

To show the difference in kWs a 10 HP motor will be used. The single phase current for a 10 HP motor is listed as 50 amps at 230 volts. The formula for kWs single phase is I x E x pf/1000 = 50 x 230 x .9/1000 = 10350/1000 = 10.35 kw. The three phase current for a 10 HP motor is listed as 28 amps at 230 volts. The formula for kWs three…

### Can you convert 1 phase to 3 phase?

I am assuming we are taking 240 volt single phase to 240 volt 3 phase, it can be done. Two ways, you can use a variable frequency drive, this drive would be sized at twice the load. So if you have a 5 hp 3ph motor you would need a 10 hp VFD. You can also use a rotary phase converter, it would also be sized at twice your attached load. A rotary phase converter…

### Are all large motors three-phase?

Yes, most large motors are three phase. Usually single phase motors only go up to 10 HP. Larger than this and the wire size and contactors used to control the motors becomes extreme. For example a single phase 10 HP motor on 115 volts draws 100 amps. The same single phase motor on 230 volts draws 50 amps. The same 10 HP motor on three phase system draws the following amperage; 230 volts is a…

### How many amps does a 60hp motor draw at 208 volts?

There are two equations for amperage when horsepower is shown. One is for three phase motors and one for single phase. As it is not stated, both equations will be shown. A standard motor's efficiency between 5 to 100 HP is .84 to .91. A standard motor's power factor between 10 to 100 HP is .86 to .92. Three phase; HP x 746/1.73 x Voltage x %eff x pf. Single phase; HP x 746/Voltage x…

### How many horsepower is nine amps?

There is zero horsepower in nine amps. First it has to be stated whether it is a three phase or single phase motor. The equation for HP when amperage is known is, single phase HP = I x E x % eff. x pf./746, for three phase HP = I x E x 1.73 x %eff x pf./746. I = amperage, E = voltage, %eff = motors efficiency factor, and pf = power factor. A…