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matts 12-20-2010 12:15 PM

need a neutral
 
can i get a neutral from the ground 240 volt 3 phase? The machine is 240 1 phase with neutral.

joed 12-20-2010 12:31 PM

No you can not.

nap 12-20-2010 04:59 PM

Quote:

Originally Posted by matts (Post 554239)
can i get a neutral from the ground 240 volt 3 phase? The machine is 240 1 phase with neutral.

the machine would be 120/240 1, not 240 1 if it requires a neutral.

Speedy Petey 12-20-2010 06:21 PM

Quote:

Originally Posted by matts (Post 554239)
can i get a neutral from the ground 240 volt 3 phase?

I am sure the service has a neutral, but if you are talking about an existing circuit that is straight 3-phase without a neutral then absolutely not.

What size is the circuit?
What size circuit does the new machine require?
What size is the wire?

To be honest, this is NOT something someone without the proper experience should be messing with. A qualified electrician would not be asking this question.

frenchelectrican 12-20-2010 11:57 PM

Quote:

Originally Posted by matts (Post 554239)
can i get a neutral from the ground 240 volt 3 phase? The machine is 240 1 phase with neutral.

This part you may end up redo this circuit and what kind of three phase supply are you refering to due there are few combations of three phase supply.

What kind machine this is ??

How much power ( amps ) it required ?

What size exsting conductor you have there right now ??

Once we know the basic quesiton we can go from there but the main item is if this is a commercal building the all bets is off that you have to get a electrician to come out anyway.

Merci.
Marc


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