give double phase supply to single phase motor

First you need to tell how you plan to connect a two phase source to a single phase motor and secondly, what is the relationship between the two phases, assuming that the voltages are compatible?

You cannot connect two phases to a single phase motor, it will burn up. Why would you want to do this? You need only the one phase and a neutral for this motor to run. Hope this helps

thanks for this.

i would like to know by giving two phase to single phase motor if it will burn.what it is the reason why it will burn.it will burn immeadiatly or after running some time.

thanks in advance

It MAY run a short time but doubling the voltage doubles the current and heat causing a short run and burnout of the windings.

Try it, you won't like it. NO DON'T TRY IT. Ruins a good motor and could be a danger to you as well.

You have not provided enough information about the particular motor or the 2 phase supply to make any determination as to what will happen.

If the question is general in nature, there really is not a correct answer.

First of all, I'm curious as to where a 2 phase electrical supply is still available.

If I assume the motor has only 2 leads since it is a single phase motor and a 2 phase source has 3 leads, so any connection that employs all 3 leads will likely result in a short circuit.

If I assume the motor has 3 leads to accomodate a start and/or run capacitor that is missing from the motor winding circuit, then it's kind of a crap shoot as to what's going to happen. Most likely result will be burning out one of the motor windings

You really need to provide a bit more detail.

If the motor only has 3 leads doesn't really mean that the third is for the capacitor. Anyway the capacitor gets connected in paralell with the motor so the motor will just need 2 leads. 3 leads may result in a 3 phase motor in star configuration :)(not very usual). And yes..you can connect the motor to 2 phase even if the motor is mono but you have to limit the current with resistors or inductions(coils), and also to be sure that the motor'sinsulation supports the applied voltage.

V_phase-phase=V_phase*√3

I don't think you have a clue as to what you are talking about!!!

Diagrams and some common sense please would help all concerned.....

TO ANDYGERMANY: Why not be nice instead of arrogant. Sure to you and most it was obvious the guy didn't know he was asking BUT he is a person and talking down to him (and anyone) just make ill feelings. Negatives beget more negatives . Its just as hard to be nice as it it to be mean.

TO: GUEST

If you have a single phase motor for example 110 volts and you have a 2 phase connection for example 220 volts (using two 110 volt hot wires and a nuetral or ground), you can yes connect but only to one or the other 110 v sides. DON'T connect to both hot wires on the 220 supply as it will blow the breaker and or burn out the motor windings. Simply cap one 110 volt hot wire off and use the other 110 volt hot and the nuetral or ground. If you are unsure consult an electrician who can look at exactly what you have.

Make sure it has an appropriate amperage circuit breaker or fuse connected to prevent fire and equipment damage.

"DON'T connect to both hot wires on the 220 supply as it will blow the breaker and or burn out the motor windings. Simply cap one 110 volt hot wire off and use the other 110 volt hot and the nuetral or ground."

In which case you are connecting the motor to a single phase........

In which case you are connecting the motor to a single phase........""

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Yes exactly. 2 phase 220 v is made up of 2 single 110 v phases in this case. We have to remember that we have to interpret sometimes what the new comers (god bless them for they are they future) have in their grasp and what they are looking at. (it might be an old heater supply that is outside in the old tool shed and its dark, cold, snowy, tired, frustrated, using flashlight or candle. etc. )

All they know is xyz and they are reaching out for a friendly face to help them out of their dilemna , the LAST thing we'd want to do is "talk down to your brother or sister in trouble sincerely, and humbly seeking help).

Its easy for us to sit up on our mountain and discredit using hindsight and arrogance of a armchair qb.

Guest:

REGISTER and use you name when you post. If you ask a stupid question you can be contacted privately rather than generate off topic post and rude remarks. Also clarify what your intent is.

RE: Stirling Stan comment: "REGISTER and use you name when you post. If you ask a stupid question you can be contacted privately rather than generate off topic post and rude remarks. Also clarify what your intent is . "

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Because questioning is an attempt to find out, discover, clarify, define, support, reinforce, information THERE IS NO SUCH THING AS A STUPID QUESTION. WHen you learn this you can then be a good teacher and leader .

Stalin: If we want your opinion we'll tell you what it is. Hitler: The forced marches will continue until morale improves.

Basic Motor Theory: http://www.reliance.com/mtr/mtrthrmn.htm

http://en.wikipedia.org/wiki/Electric_motor

Other electric motor links:

http://www.firstelectricmotor.com/motor_connections.htm

http://www.patchn.com/motor_connections.htm

This isn't high-horse, is it TBL?

please practice real engineering, because you are trying to violate the basic rules and manufacturers specsfications. so do not do that.

Regards

JUSTUS