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RESOURCE SITE

3 Phase Power Grain Dryer
3 phase power is used today for many applications ranging from the above grain dryer to saw mills, conveyer belt systems, refrigeration and air conditioning, etc.

3 Phase Contents
- 3 Phase Power Home
- 3 Phase Wiring
- 3 Phase Power Calculation
- 3 Phase Power Converter
- 3 Phase Converters
  * Rotary Phase Converters
  * Static Phase Converters
- 3 Phase Generators
- 3 Phase Transformers
  * 3 Phase Isolation Transformers
- 3 Phase Motors
- 3 Phase Electricity
- 3 Phase Power Loads
- 3 Phase Frequency
  * Frequency Converters
- 3 Phase Distribution
- 2 Phase Systems
- 1 Phase Loads on 3 Phase Power
- 3 Phase Loads on 1 Phase Power


3 phase power three phase power three phase electricity three phase generator 3 phase converter, rotary three phase

 

Rotary Phase Converters

To Buy Rotary Phase Converters
We Recommend ACE Brand.
Call 1-800-967-7217
Web Link:  Phase Converters

3 Phase Generating Rotary Phase Converters

Often the advantages of 3 phase motors, and other 3 phase equipment, make it worthwhile to convert single-phase power to 3 phase. Small and large customers, such as residential, rural businesses, or farm properties may not have access to a 3 phase supply, or may not want to pay for the extra cost of a 3 phase service, but may still wish to use 3 phase equipment.  A 3 phase generating Rotary Phase Converter can benefit these situations or where high quality 3 phase power is required.  Some of the Rotary Phase Converters manufactured today produce 3 phase power output that is better quality and will allow 3 phase equipment to run better and last longer than the 3 phase power from provided by a  utility company.  Such 3 phase converters may also allow the frequency (see also frequency converters) to be varied allowing for different equipment frequency requirements (50Hz, 60Hz, 400Hz, etc.) and also for motor speed control (VFDs).  Some locomotives are driven by 3-phase motors with 3 phase converters converted from the incoming supply of either DC or 1 phase AC.   The two main types of 1 phase to 3 phase converters are Rotary Phase Converters and Static Phase Converters.  One very important resource is the rating system that the U.S. Phase Converter Standards Organization offers of various phase converter types and technologies.  Click here to read more about 3 phase converters.


TEMCo 6500 Series - 3 Phase
Rotary Phase Converter


TEMCo 3 Phase Generating
Frequency and Phase Converter


Rotary Phase Converters

The most common type of phase converter is the Rotary Phase Converter.  Not all Rotary Phase Converters are the same.  Many just convert single phase power into unbalanced 3 phase power, while the best kind that we were able to find will actually generate true balanced 3 phase power.  This is the best kind to use.  There were only a few companies who manufacture this type with the most notable two brands being TEMCo Phase Converters and ACE PHASE CONVERTERS.  A few other companies called this type of 3 phase generating rotary phase converter a motor generator set

High quality heavy duty rotary phase converters generate high quality 3 phase power while running on single phase. Rotary Phase Converters are being used throughout the US and internationally every day. Their quality 3 phase power will run any 3 phase application. 3 phase applications range from 3 phase computers, 3 phase pumps, 3 phase welders, 3 phase ovens, to 3 phase CNC mills, etc.  

Rotary Phase Converters Cost Less Than Utility Three Phase Service

When it comes to powering three phase electric motors and machines of all types, often three phase power from a utility company is expensive or not even available. Single phase power is more often available at a reasonable rate. Quality brands of heavy duty rotary phase converters are efficient at generating the necessary three phase power from single phase. They provide full rated balanced three phase power for any three phase application. 

Rotary Phase Converters Provide Reliable, Balanced, and Efficient Three Phase Power

High quality heavy duty rotary phase converters are built to last with quality precision rotors and long lasting components to give 3 phase electrical power service you can count on.  Quality rotary converters are reliable and efficient at generating three phase power - even better quality 3 phase than utility supplied power.  Be sure to note the difference between a quality rotary phase converter and a static phase converter.


Quick and Effective Three Phase Electricity

In some areas, having the Utility Company install three phase power will take from weeks to months. When you need three phase power right away, high quality heavy duty Rotary Phase Converters are a quick solution to high quality 3 phase power.

There are many different kinds of electric motors and machinery built today. Check out a phase converter sizing guide and call the manufacturer to choose the correct model to power your three phase motors or machines.

Rotary Phase Converter Ratings

The US Phase Converter Standards Organization says that true 3 phase Rotary Phase Converters scored the highest in all categories of their testing and research.  

 

Here are their findings:

Quality 3 phase Rotary Phase Converters use a balanced 3 phase generator with power factor correction, resulting in balanced safe 3 phase power that is better than even standard utility supplied 3 phase power.  

When properly installed, Rotary Phase Converters were safe to operate.  Due to high quality materials such as copper windings and quality parts, with standard maintenance, a quality Rotary Phase Converter should operate indefinitely (35 years and more).  There are tens of thousands of 3 phase generating rotary phase converters installed in the US that have operated over 50 years.  The balanced 3 phase generator and power factor correction ensure that the output is a smooth balanced 3 phase wave form that will be completely safe for the 3 phase machinery it is meant to operate. 

Note: In the U.S. Phase Converter Standards Organization's research they found that some companies called a product that they sold a "Rotary Phase Converter" but, in fact, their product is made with just a control box (or a Static Converter) and an electric motor.  These type of products were shown though their rigorous testing to be unsafe and unreliable.  There is a tendency for these "Static Phase Converter" controlled units to burn out the equipment it is meant to operate due to phase imbalances that change with the load.  They did not count these types of products as true Rotary Phase Converters, but rather in the category of Static Phase Converter or Build Your Own Phase Converter Plans.

It is recommended that only true 3 phase balanced Rotary Phase Converters, with a 3 phase generator and power factor correction, are used to power 3 phase machinery and equipment. 

Remember that not all rotary phase converters are manufactured to the same high quality standards.  Click here to read their Phase Converter Purchasing Checklist for guidance in selecting a quality product from a quality company.

3 Phase Converter Types and Comparison

Good old fashioned research will help guide you to make sure that you are able to get the proper product to give you balanced 3 phase power.  The US Phase Converter Standards Organization has some excellent guides to help choose the appropriate technology for your need comparing them side by side.  Check out their Phase Converter Type Comparison Chart to read about the strengths and weaknesses of each type side by side with their ratings on quality, durability, safety, and 3 phase power quality produced.  They also offer a useful 3 Phase Converter Resources page.

Static Phase Converters

The next most common type of phase converter is called a Static Phase Converter.  These can only be used on 3 phase motor loads.  These units only generate a 3rd leg of power during start up but then turn off leaving motors to run simply on 2 out of 3 of their windings.  This can damage some types of 3 phase motor loads by over heating the motor and burning it out when it is put under its full load.  Many times a load has 3 phase circuitry and not simply a motor load so it will not even work with a static phase converter.  Read more about Static Phase Converters here.

Analyzing "Build Your Own Phase Converter Plans"

There is a lot of info out there about how to Build Your Own Phase Converter Plans, but most of these actually are simply showing how to use the equivalent of a static phase converter with an inferior electric motor as a generator and can waste valuable time and capital.  Read the US Phase Converter Standards Organizations site for more info on these and the other types below.

Understanding Phase Inverters and VFDs

There is a product sometimes referred to as a Digital Phase Converter.  Sometimes this is a just a marketing term, and other times this is to say that it does not have any moving parts and has a circuit that calculates part of the output.  These tend to be very sensitive and are prone to damage if a circuit has a spike or feedback from your 3 phase load. Others are simply a Phase Inverters also known as a variable frequency drive (VFD).  These are manufactured to control the speed of electric motors and can run some 3 phase motors on single phase but cannot power any other type of 3 phase load.  These solid-state inverters are only used to power some 3 phase motors from a single-phase supply.  They are never used for a mixed type of load and are very sensitive.  They also have a short operational life.

CNC Rotary Phase Converters

The last common type is the CNC Phase Converters. These are simply a Rotary Phase Converter with more balanced 3 phase output manufactured to provide 3 phase power to sensitive computers that are a part of CNC machines.  

3 Phase Loads from 3 Phase Power Generated on 1 Phase Power

There are many places and instances where 1 phase power is all that is available, or where the power company wants to charge tens, or even hundreds of thousands of dollars to install and supply 3 phase power.  When this is the case a quality 3 phase generating phase converter can be run on 1 phase to power 3 phase equipment of any type.  Click here to read more about powering 3 phase loads with 3 phase power generated from 1 phase power.

Continue And Read About Additional 3 Phase Power Details:

- 3 Phase Power Home
- 3 Phase Wiring
- 3 Phase Power Calculation
- 3 Phase Electricity
- 3 Phase Power Loads
- 3 Phase Power Converter
- 3 Phase Converters
  * Rotary Phase Converters
  * Static Phase Converters
- 3 Phase Generators
- 3 Phase Transformers
  * 3 Phase Isolation Transformers
- 3 Phase Motors
- 3 Phase Frequency
  * Frequency Converters
- 3 Phase Distribution
- 2 Phase Systems
- 1 Phase Loads on 3 Phase Power
- 3 Phase Loads on 1 Phase Power

Contribute 3 Phase Power Articles to The 3 Phase Power Resource Site:
If you would like to contribute additional 3 phase info to our 3 phase power resource site please feel free to email your 3 phase power article to us at info@3phasepower.org.  By doing so you are giving us full rights to edit and distribute the info freely worldwide in perpetuity in any way we see fit.  Note that The 3 Phase Power Resource Site is run by all volunteers and thus we do not have the ability to respond to all emails.  Also not all info submitted will be added to the site.  It is at the sole discretion of our electrical editors.  Thank you for contributing! 

 

Smooth 3 Phase Power Wave Form (center)
Because of its smooth wave length properties, 3 phase electrical power is used across the U.S. and throughout the world.



3 Phase Transformer

3 Phase Substation Transformer
(above)
There are a variety of 3 phase transformer types and voltages, depending on your power needs.


3 Phase Power Saw

3 Phase Power Saw (above)
There are a whole variety of power equipment and power tools which require 3 phase power to run.


TEMCo 3 Phase Converter

3 Phase Converter
(above)
Some Types of Rotary Phase Converters will run on 1 phase power and generate 3 phase power to run other 3 phase equipment.


 
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