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It's possible, but not at all economic. Usually the 240V (sure it's not 277?) has been stepped down from 480V service already. Sounds like this is a commercial application. 480 is rare in residential, but quite common in commercial. If you need 480, you'll need to get ahead of the step down transformer.
AnswerYou cannot obtain a three-phase supply from a single-phase supply.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoNo, you cannot. You could use a 460 volt disconnect on 240, but you cannot use a 240 volt rated disconnect on 460.
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Is there a single phase 460 volt variable speed control?
No you need a Roto Phase
What is the measurement on a 460 volt 3 phase circuit from 1 leg to ground?
The formula you are looking for is 460 divided by the square root of 3 (1.73).
Can you run a 460 volt 3 phase 60 hertz refrigeration compressor on 460 volt 3 phase 50 hertz?
Possibly. You need to check the rating on the device. Many compressors can operate on either 50 or 60 Hz.
Fuse size for 7.5 HP 3 Phase 440 Volt Motor?
The electrical code states that a 7.5 HP 460 volt three phase motor draws 11 amps. For fuse sizes, non time delay - 30 amps, time delay type D - 20 amps and if using a breaker it will be 30 amps. Minimum wire size is #12 and the maximum setting of overload devices will be 13.75 amps
Can a 230 460 volt 3 phase motor be connected to a 277 480 volt 3 phase circuit?
Yes, that's possible, but only for low-powered motor. You know that in order to start, the stator must be supplied with voltages that are shows shift phase between them, so the trick is to use a capacitor (since it shifts phase current) to simulate a 3-phase source. As indicated in the following picture: http://freecircuitdiagram.com/wp-content/uploads/2010/10/Enabling-3-Phase-Motor-Operates-with-Single-Phase-Supply.gif
Is there a single phase 460 volt variable speed control?
No you need a Roto Phase
What is the measurement on a 460 volt 3 phase circuit from 1 leg to ground?
The formula you are looking for is 460 divided by the square root of 3 (1.73).
I have a 460 volt 3 phase feed to our bldg. We had a single phase condition to our bldg and we had quite a few 120 coils on 460 volt 3 phase VFD contactors short out Do not know why help?
Try rewriting your question so that it makes sense.
What household current do you need to power 460 volt motor?
There is no household current with which you can power a 460 volt motor.Normal US household power is 120/240VAC split phase. (Other countries have different configurations, but the answer remains the same.) Without a transformer, and a substantial power flow, you are not going to develop the voltage necessary to run a 460 volt motor. Even if you could generate that voltage, you still only have one phase available, and most 460 volt motors require three phase power.You could do this with an inverter, or a motor-generator set, but to be blunt, you are asking about a commercial application, not a household application.
Can you run a 460 volt 3 phase 60 hertz refrigeration compressor on 460 volt 3 phase 50 hertz?
Possibly. You need to check the rating on the device. Many compressors can operate on either 50 or 60 Hz.
Why won't a 230-460 volt motor work on a 120-208 volt circuit?
Because its designed to operate at 230-460, not 120-208.
How many wires are used for a 460 volt circuit breaker?
If the load is single phase and the load requires 460 volts to operate, then two conductors will be needed and they will connect to a two pole breaker. If the load is three phase and the load requires 460 volts to operate, then three conductors will be needed and they will connected to a three pole breaker. The sizing of the wires will depend upon the current that is drawn by the loads.
How Convert 230 volt to 460 volt?
To convert single phase 230 to 460 volt, you would need a transformer that is rated at 460v and 230v respectively. It can be a step down or step up transformer. For 3 phase, you would need a 3 phase transformer.
Why only two current in a 460 v electric system?
Your question is a little vague. Two currents would imply only two current carrying conductors, whereas the standard 460 volt power system is derived a 3 phase generator. It is possible, however, to power some types of equipment from only two phases or even a single phase along with the neutral conductor.
Can you use a 460 volt 3 phase appliance in a residential single phase set up?
3-Phase service is not generally available in residential areas. You could get a VFD to change the voltage from single phase to three phase. VFD (Variable Frequency Drive) Look up Drives Warehouse. They have all kinds of VFD's like this model: SJ200-015NFU2
Is there single phase 460V?
Yes, assuming the panel is 460 volt, three phase. You will need to supply a 2-pole breaker of the proper current rating. The breaker installs on any two adjacent phases, such as A-B. Any two phases of 460 volt, three phase power will yield 460v single phase.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.If you do this work yourself, always turn off the powerat the breaker box/fuse panel BEFORE you attempt to do any work AND always use a meter or voltage indicatorto insure the circuit is, in fact, de-energized.
Fuse size for 7.5 HP 3 Phase 440 Volt Motor?
The electrical code states that a 7.5 HP 460 volt three phase motor draws 11 amps. For fuse sizes, non time delay - 30 amps, time delay type D - 20 amps and if using a breaker it will be 30 amps. Minimum wire size is #12 and the maximum setting of overload devices will be 13.75 amps
