2006-11-28 23:21:59 · 6 answers · asked by devanathan d 1 in Science & Mathematics ➔ Engineering
You cannot do this directly. Assuming you are talking about a motor, It may be possible to get the motor to turn using a capacitor but you will not get the rated torque (turning force). I'm sure there is plenty 3 phase theory on the internet if you want to see why they are so different
One way it can be done is by using an inverter that takes single phase input (providing the voltage you require is not higher than the voltage you have or you will then need a transformer as well). The inverter gives you the added value of being able to vary the speed but it may be cheaper to simply buy a single phase motor. As you didn't actually specify the device to be motor, be aware that VSD inverters may not work on other equipment.
You need to be wary of the size of the device you are trying to operate. Often 3 phase is used for higher powered devices that becomes in-practical to try and run on single phase anyway.
2006-11-29 00:30:16 · answer #1 · answered by Poor one 6 · 0⤊ 0⤋
No, we cannot use the device that operates in 3 phase to 2 phase
Eg: Every motor of 3 phase has 03 coils and if it given 02 phase one coil will remain ideal and will not wok so the motor will not work
2006-11-29 07:25:59 · answer #2 · answered by Ashish Das 2 · 0⤊ 0⤋
I agree with the statement above that you probably don't really mean 2 phase (its rare), but 2-wire.
There are conversion devices available. Its basically a motor and generator in one casing. Single phase motor on the same shaft as a 3-phase generator. Pretty straight-forward. Look for them at industrial supply places.
2006-11-29 20:24:43 · answer #3 · answered by B W 2 · 0⤊ 0⤋
If you want to run a 3 phase motor in a 2 phase connection, it is possible.
The single phase motors are actually having a pseudo 2nd phase created by the capacitor fitted on them.Hence they are actually 2 phase motors.
Similarly, the 3rd phase in a 3 phase can be created using a suitable capacitor.
Any electrician working on pumps on farms might be able to give you advice on how its done, since this seems to be done all over India on farms
2006-11-29 07:51:20 · answer #4 · answered by joe m 2 · 0⤊ 0⤋
It depends on the actual use. It may be possible but generally a three phase devise shall not work on two phase supply
2006-11-29 07:41:56 · answer #5 · answered by Bal 1 · 0⤊ 0⤋
Some electric stoves can be connected in either 3ph or single phase mode..
IT SHOULD BE NOTED THAT THE 2PHASE AS MENTIONED IS ACTUALLY SINGLE PHASE IE. TWO WIRE MODE IT DOES NOT MATTER WHETHER THERE ARE TWO ACTIVE WIRES OR ONE ACTIVE AND A RETURN (NEUTRAL) IT IS A SINGLE PHASE CONNECTION.
2006-11-29 08:35:42 · answer #6 · answered by Bazza66 3 · 0⤊ 0⤋