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Is there any way to get a 3-phase motored 15hp 120 gal compressor to work on any kind of residential hookup?
If the motor voltage is 240 you can hook 240 to any two motor leads then put a switch and a capasitor in series from one leg to the other motor lead.once motor starts open switch,the motor will be rated at 58% about 8.7 hp.Another way to do this is if you have another 3 phase motor the same size or larger ,hookup 240 to extra motor any two leads hook leads from motor to air comp start contactor.Turn shaft on extra by hand it will srart which will make a third leg "3 phase" I know this is working on a three phase wheel balencer for the last 8 years i don't believe i would want to "hand spin" a motor on a compressor... a bit hazardous! another factor here is the direction of rotation as most compressors are sensitive to this. the starting current on a motor of this size and the service it is in quite large, the best bet would be to find a replacement single phase (220V.) motor (matching rotation, speed and starting torque). one could always use a rotary phase converter, but this is a spendy and involved way to do the job.
Can you use a 3 phase radial arm saw on 240V?
You cannot use a 3 phase motor on single phase power. It will be limited in it's torque output, if it starts at all. The best thing to do is put the 3phase motor up for sale on eBay and buy a replacement single phase motor. If that is not an option you can get a converter, but they are expensive. Don't try to wire a 3 phase motor up to residential 220 if you don't know exactly what you are doing. Chances are you will burn your motor up.
You have an old Gould 2hp elect motor that you want to switch from 230v to 110v The existing connections do not match directions in earlier question and suggested 110v connections differ from mtr diag?
2 HP, A-C Single phase, 115/230 volt motor. And you wish to operate it on 115V. First the circuit size would need to be a min. of 30amp/ #10wire.... Being a Gould is this a pump/motor? I ask because single phase pump motor are not reversible, so they have less leads to connect..Is the motor thermaly protected (check name plate) Again less leads to connect if not therm-protected. How many lead motor is it, and what are the leads #. If it is 4 leads and # t1,t2,t3,t4 connect line1 to t1 and t3 connect line2 to t2 and t4. Let me know what the # are and how many leads their are.. I would not operate a motor that large on 115V, (1HP is about max on 115V)
What can we do to change 3 phase motor into single phase?
The physical internal windings between single phase and three phase motors makes this an impossibility. That being said, money can make anything happen. Depending on the amount of money you want to spend to make this happen, there is a device on the market called a VFD (Variable Frequency Drive). On the three phase input terminals you apply your single phase voltage. On the output terminals you connect your three phase motor. When run in this configuration, there is an internal switch that has to be changed to let the VFD know that it should be looking for only two lines on the input to be hot. Otherwise the VFD thinks that there is a line loss on the three phase input terminals and the unit will not start.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.If you do this work yourself, always turn off the powerat the breaker box/fuse panel BEFORE you attempt to do any work ANDalways use an electrician's test meter having metal-tipped probes(not a simple proximity voltage indicator)to insure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
How do you convert single phase supply to three phase for running a 3-phase motor?
Any business, such as a factory, or any home needing a 3-phase supply for some equipment would usually get that supply by having it installed by their local electric power utility company.For a very small 3-phase motor, solid state power inverter units are available nowadays which can be powered from household 1-phase supply.If you want to know how to convert a 1-phase to a 3-phase supply for high power applications it can be done using a motor/alternator set or a solid state inverter unit but to use these safely requires specialized equipment and electrical engineering knowledge. The full answer is too complicated to explain here.Depending on the amount of money you want to spend to make this happen there is a device on the market called a VFD ( Variable Frequency Drive). On the three phase input terminals you apply your single phase voltage. On the output terminals you connect your three phase motor. When run in this configuration there is an internal switch that has to be changed to let the VFD know that it should be looking for only two lines on the input to be hot. Other wise the VFD thinks that there is a line loss on the three phase input terminals and the unit will not start.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energizedIF YOU ARE NOT REALLY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
Is there any way to get a 3-phase motored 15hp 120 gal compressor to work on any kind of residential hookup?
If the motor voltage is 240 you can hook 240 to any two motor leads then put a switch and a capasitor in series from one leg to the other motor lead.once motor starts open switch,the motor will be rated at 58% about 8.7 hp.Another way to do this is if you have another 3 phase motor the same size or larger ,hookup 240 to extra motor any two leads hook leads from motor to air comp start contactor.Turn shaft on extra by hand it will srart which will make a third leg "3 phase" I know this is working on a three phase wheel balencer for the last 8 years i don't believe i would want to "hand spin" a motor on a compressor... a bit hazardous! another factor here is the direction of rotation as most compressors are sensitive to this. the starting current on a motor of this size and the service it is in quite large, the best bet would be to find a replacement single phase (220V.) motor (matching rotation, speed and starting torque). one could always use a rotary phase converter, but this is a spendy and involved way to do the job.
What amp would a 440 3 phase motor have?
Need to know the horsepower of the motor.
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
Can you connect a 3 phase motor to a 1 phase supply?
Single phase to three phaseThe physical internal windings between single phase and three phase motors makes this an impossibility That being said money can make anything happen. Depending on the amount of money you want to spend to make this happen there is a device on the market called a VFD ( Variable Frequency Drive). On the three phase input terminals you apply your single phase voltage. On the output terminals you connect your three phase motor. When run in this configuration there is an internal switch that has to be changed to let the VFD know that it should be looking for only two lines on the input to be hot. Other wise the VFD thinks that there is a line loss on the three phase input terminals and the unit will not start.Some 3 phase motor speed controllers can be run off a single phase supply, this caused us a problem at work when a new speed control was fitted to some laundry equipment, as we then had to rewire the supply to bring in a nuetral, so i suggest a speed controller is probably the solution.
Can you use a 3 phase radial arm saw on 240V?
You cannot use a 3 phase motor on single phase power. It will be limited in it's torque output, if it starts at all. The best thing to do is put the 3phase motor up for sale on eBay and buy a replacement single phase motor. If that is not an option you can get a converter, but they are expensive. Don't try to wire a 3 phase motor up to residential 220 if you don't know exactly what you are doing. Chances are you will burn your motor up.
Convert 8 amp motor to peak horsepower?
Need to know the voltage and phase for this question.
How many amps does a 5 hp 208 volt 3 phase motor draw?
read the name plate on the motor
What is advantage of phase sequance cheaker of 3 phase supply?
it can tell you which way a motor will turn before you apply power sometimes nice to know
When connecting a external generator 3 phase to an existing 3 phase electrical network how do you know that the 2 systems are in phase?
use a rotor phaser or simply connect a 3 phase motor and check dirrection
You have an old Gould 2hp elect motor that you want to switch from 230v to 110v The existing connections do not match directions in earlier question and suggested 110v connections differ from mtr diag?
2 HP, A-C Single phase, 115/230 volt motor. And you wish to operate it on 115V. First the circuit size would need to be a min. of 30amp/ #10wire.... Being a Gould is this a pump/motor? I ask because single phase pump motor are not reversible, so they have less leads to connect..Is the motor thermaly protected (check name plate) Again less leads to connect if not therm-protected. How many lead motor is it, and what are the leads #. If it is 4 leads and # t1,t2,t3,t4 connect line1 to t1 and t3 connect line2 to t2 and t4. Let me know what the # are and how many leads their are.. I would not operate a motor that large on 115V, (1HP is about max on 115V)
What is pulse width and speed relation in stepper motor?
A: A stepper motor move a step at the time. If you know the steps then you will know the speed per tum. The motor need current pulses with a fast rise time the width is immaterial once moved
How to build a Rotary phase converter?
A simple Rotary phase converter is just a motor generator set. An electric motor running on the input voltage/current/phase/frequency. it drives a generator that supplies a different voltage/current/phase/frequency. So an electric motor and an electric generator connected together mechanically, either on the same shaft, or via gears, constitutes a Rotary phase converter. the above is incorrect, the motor/generator is the same motor, just one 3 phase motor is needed, it will run on T1 and T2, and put out L1, L2, and L3. You just need to know how to wire it up and what to do to get it to spin over on simple single phase 220, it will create three phase 220.
