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Most technical people believe that AC electricity is not polarized this is an incorrect assumption. Since AC power is just a potential difference between some reference (ground) and a signal it stands to reason reversing the Neutral and the "Hot" should reverse the polarity.

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Can you use 240 volt 3 phase to run a machine that is 240 volt single phase?

Yes, if the motor is rated 240 volts 3 phase.There is such a thing as 240 volt 3 phase power.However if you are asking if you can use 240 volts single phase on a three phase motor, then the answer is no.


Can you use a 2 pole breaker for a 120 volt single phase circuit?

No, a 2 pole breaker is designed for a 240-volt circuit or for two separate 120-volt circuits that are out of phase with each other. For a 120-volt single-phase circuit, you would typically use a single-pole breaker.


Can 1 phase be used with 3 phase?

If you have a 208Y/120 volt 3 phase system, you can use any one of the three phases (hot or ungrounded conductor) with the neutral for 120 volt load or you can use any two phases of the three phase for a single phase 208 volt load. If you have a 120/240 volt 3 phase system, you can use any two phases of the three phase for a single phase 240 volt load or you can use either the A phase or C phase with the neutral for a 120 volt load. You can not use the B phase with a neutral (you would have 208 Volts!).


How do you obtain a 230 volts single phase supply from a 400 volts three phase four wire supply?

400 volt three phase on a grounded system is 230 volt single phase, with each phase 120 degrees apart. So, if you have a 400 volt, three phase four wire service (grounded service), you can pull one phase off and reference to the neutral for 230 volt service. Note this may not allow 115 volt service, unless there is also a center tap for each phase.


Can 3phase source supplies single phase load?

For a three-phase, four-wire, system, single-phase loads can be connected between any pair of line conductors. For a three-phase, four-wire, system, single-phase loads can be connected between any pair of line conductors, or between any line conductor and the neutral conductor. The choice depends on the voltage requirements of the load.

Related Questions

How do you change a 3 phase 440 volt motor to a 3 phase 220 volt motor?

You can not change it. 440 volt is by design. However you run it with 220 single phase supply, but it would run far lower power.


Can you wire up a 240 volt single phase water heater to 277 volt single phase?

no


In a 240 volt single phase circuit A phase is 4000 watts B phase is 7000 watts what is the neutral load?

Question is incorrect. in a 240 Volt single phase circuit, how can you have A phase and B phase?


Is there a single phase 460 volt variable speed control?

No you need a Roto Phase


Can a 230 volt single phase watt hour meter be used to monitor 115 volt single phase?

Yes it would work pretty well but it might not meet its accuracy specification.


What is the ac equivalent of 98v DC?

120 volt single phase rectifies to about 96 volt DC


How do you get a 220 volt single phase from 380 volt 3phase synchrounos generator?

220 volt single phase from 480 volt 3 phase that one wire taken one phase and second wire connected in earth point. we get 220 v The above answer is incorrect, one phase from a three phase 480 volt system will give you 277 volts to ground. You must use a transformer to get the voltage you need.


What transformer do you need if you have primary voltage of 600 3 phase and require 240 volt 1 phase?

A single phase 600 to 240 Volt transformer using two phases of the three phase primary.


Does a 2 horsepower rotary converter plug into 120 single phase and convert it to plug in a 3 phase outlet?

All my experience with rotary phase converters have been in converting 240 volt single phase into 240 volt three phase. They all were hard wired into their respective systems, so my answer is no.


How do you get single phase 440 from three phase 440?

You Don't. 440volt 3-phase is actually 480 volts, taking a single phase gives 277Volts single phase. To get single phase 440 you would use one leg of three phase 440/760 three phase power.


Can you use 240 volt 3 phase to run a machine that is 240 volt single phase?

Yes, if the motor is rated 240 volts 3 phase.There is such a thing as 240 volt 3 phase power.However if you are asking if you can use 240 volts single phase on a three phase motor, then the answer is no.


What is the voltage for a single phase from a 415 volt 3 phase and neutral supply?

240V. 415 / 1.73 = 240