This Article is About
bandsaw
3 ways
horsepower
hook
auction
Running A Three Phase Motor On Single Phase Power
Join 1000's of Authors at StreetArticles Today!

Running A Three Phase Motor On Single Phase Power

If you decide to build something like a bandsaw and the only thing available to you is a 3 phase motor, there are at least 3 ways that you should be able to do this without a problem. When I built my bandsaw, I had a good 3 phase motor that I had picked up at an auction just laying around the shop, so instead of having to go out and shop for a single phase motor, I decided to just use the 3 phase motor, but change it to single phase power because I did not have 3 phase power available to me in my shop.

I will explain 3 easy ways to change the power to 3 phase. The first method is that you can use a start capacitor rated for at least 240-300 volts from a motor of about the same size as the motor you want to run, and you will also need a momentary contact switch. The 3 phase motor you want to run must be rated at 208-220 volts. Hook 2 of the 3 motor leads to a double pole single throw switch (DPST) and the other lead to a start capacitor, and the other capacitor lead is connected to a momentary contact switch that is in turn connected to one of 220 volt leads, it does not matter which one. To start and run the motor, turn the switch to the "on" position and just momentarily push contact switch. Don't hold the switch down for more than one second as it will damage the capacitor and could even cause it to burn up or blow out. To reverse the rotation, switch any two leads on the 3 phase motor. A 3 phase motor running in this manner will produce about 2/3 of its rated horsepower.

This first method is the one I used to make a homemade bandsaw and although it seems complicated, it is the easiest way to operate a 3 phase motor after you assemble it. I was able to later convert the motor on the saw to a single phase motor once I got one.

Another method is to spin the 3 phase motor by using a small single-phase motor. Connect 240 volt single phase to a 240 volt switch (DPST switch). The motor will then start and run. Then unplug the starting motor. You may have to reverse the leads to gain proper rotation. But again the motor will produce about 2/3 of its rated horsepower.

The last method is to make a phase converter by using a small single phase motor connected to a 3 phase motor. Then connect 220 volt to the 3 phase motor and use those 2 leads and the remaining lead as 3 phase power connected to a 3-pole switch. This will give you 3 phase power to start and run a 3 phase motor. After the motor is started you can turn the single phase motor off. If you want to run the motor the opposite way then change any two leads and this will reverse the motor. A 3 hp motor will produce enough power to run a 5 hp motor at full capacity.

Methods one and three are shown in the above diagram. Unfortunately the picture is not the clearest, but it might help in understanding the methods. Method two is self explanatory so I did not provide a diagram for that. This was a great way to save me some money when I built the saw that I made with my 3 phase motor.


Street Talk

warm Greeting Have you been thinking about the power sources and the tiles whom use blocks I wanted to thank you for this great read!! I definitely enjoyed every little bit of it and I have you bookmarked to check out the new stuff you post. Single Phase Motor

Reply
  about 4 years ago
You May Also Like
Pros And Cons Of Hitachi Ds18dsal 18v Li - ion Cordless Drill/driver
When it comes to powerful drills and drivers, I have utilized DeWalt and Craftsman devices for whatever length of time that I can recollect. As of late my old standby drill kicked the bucket and I had a home task to handle; I had been out of the business sector…
By: Tool Man in  Home Improvement  >  Tools and Equipment   Jun 02, 2016  
0
  Likes: 0

Woodworking Without Power Tools, A Life - long Love Affair With Hand Woodworking Tools
Woodworking is as much a relationship with your materials and your woodworking hand and power tools as it is a livelihood. When starting out as a woodworker / carpenter in 1974, I had been in a furniture making program in an art school on the East Coast. There I had…
By: patti tronolone in  Home Improvement  >  Tools and Equipment   May 28, 2016  
0
  Likes: 0

Why Hitachi Nt50ae2 Brad Nailer Offers Great Value
I’ve stayed with Hitachi nail guns for as far as I can remember as they feature best in class build quality, performance and durability. Besides you can buy Hitachi nail gun parts if you want so reparability is also a plus. This brad nail gun is Hitachi's one of the…
By: Tool Man in  Home Improvement  >  Tools and Equipment   May 28, 2016  
0
  Likes: 0

Gimmicks In A Lathe You Should Not Care About
When you are looking to buy a lathe, there are many options out there for you. Going with JET lathe is always a good option as the manufacturer provides a satisfying warranty and if anything goes wrong, JET parts, specifically JET lathe parts are available from many outlets. Quality and…
By: Tool Man in  Home Improvement  >  Tools and Equipment   May 16, 2016  
0
  Likes: 0

Services Offered By Experts In Removals Brighton Has
The more you think about the relocation, the more tempted you are to postpone it for a long time: it's so complicated to handle all the packing and the moving! Well, in order to enjoy a smooth and hassle-free relocation, the answer is to hire a company expert in removals…
By: Sheraton Veranda in  Home Improvement  >  Tools and Equipment   May 05, 2016  
0
  Likes: 0

Difference Between Original & Aftermarket Spare Parts
Craftsmen can run into many issues and one of them is broken or damaged tool. It’s not an ideal situation to be in but luckily there are alternatives available other than buying a new replacement. You can either get a refurbished or reconditioned tool or you can choose to repair…
By: Tool Man in  Home Improvement  >  Tools and Equipment   Apr 19, 2016  
0
  Likes: 0

What Are Different Type Of Hinges And Their Applications?
They are small and inconspicuous, but they really hold a room together. No, they are not pillow or candles, they're hinges that are found in every room of your house. From the refrigerator to the cabinet door, you can find them all around your home. Sure, you don't give much…
By: Van Marks in  Home Improvement  >  Tools and Equipment   Apr 13, 2016  
0
  Likes: 0

How To Change Chucks On Jet Lathes
Thousands of woodworkers and carpenters rely on JET lathes every day for a range of applications and jobs. JET offers sturdiness, durability, performance and value in a single package. It’s hard to find a better deal than JET’s offerings. Furthermore, if the tool or piece of equipment suffers any damage…
By: Tool Man in  Home Improvement  >  Tools and Equipment   Apr 08, 2016  
0
  Likes: 0

6 Ways To Maintain Your Jet Power Tools
Craftsmen put considerable money in power tools. A hefty portion of us truly cherish them, yet even with the best expectations, each of us could utilize a few tips about how to maintain their power tools especially if they’re made by JET. Good thing about JET tools is that if…
By: Tool Man in  Home Improvement  >  Tools and Equipment   Apr 07, 2016  
0
  Likes: 0

Porter Cable C2002 Oil Free UMC Pancake Compressor
When I’m in need of a pancake compressor to do some light to heavy duty tasks, I always consider what Porter Cable has to offer as they have a long history of manufacturing some of the best compressors. The build quality is awesome, performance is reliable and in adverse circumstances…
By: Tool Man in  Home Improvement  >  Tools and Equipment   Apr 04, 2016  
0
  Likes: 0

Always Buy The Commercial Grade Locks For Commercial Buildings
Small business owners may want to save their money by buying and installing the residential or standard duty door locks available at their hardware store. However, what seems like money saved can end up being money wasted. Residential/standard hardware doors are not designed to withstand the usage of commercial applications.…
By: Van Marks in  Home Improvement  >  Tools and Equipment   Mar 31, 2016  
0
  Likes: 0

Porter Cable Cmb15 – An Extremely Portable Air Compressor
I know some expansion assignments are verging on difficult to pull off without the assistance of an air compressor. Bike tires, inflatable balls, flatboats, and your kids' inflatable pools must be pumped loaded with air. Your car is a great example for instance, now and again, you have to look…
By: Tool Man in  Home Improvement  >  Tools and Equipment   Mar 29, 2016  
0
  Likes: 0

Common Sound Proofing London Mistakes to Avoid
The benefits of sound proofing London your home are many, but you have to do it right. Most people commit a number of mistakes, which, if avoided, can ensure a noise-free room or home. Some common noise insulation London slip-ups include using the wrong techniques, ignoring sound gaps, using poor…
By: aby in  Home Improvement  >  Tools and Equipment   Mar 29, 2016  
0
  Likes: 0

Maintenance And Care Of Milwaukee Drills & Impact Drivers
Purchasing a good tool is only a half job done. The other half is to use the power tool appropriately in a way it is intended to be used and take care of it during its lifetime. Now, Milwaukee drills and impact drivers are pretty darn good tools and there…
By: Tool Man in  Home Improvement  >  Tools and Equipment   Mar 25, 2016  
0
  Likes: 0

When I Found That Searching on the Net Was Safe And Economical
I have continually been the kind of person who goes to the market to shop for my pet provides. it had been simply easier to choose up the items my family wants for our cats whereas we tend to were shopping for our own groceries - approximately i believed. I…
By: Adolff Wilsonn in  Home Improvement  >  Tools and Equipment   Mar 25, 2016  
0
  Likes: 0

Article Views: 7942    Report this Article