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
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.
Phase Converters Cost Less Than Utility Three Phase
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.
Phase Converters Provide Reliable,
Balanced, and Efficient Three Phase Power
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.
and Effective Three Phase Electricity
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.
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.
Phase Converter Ratings
US Phase Converter Standards Organization says that true
3 phase Rotary Phase Converters scored
the highest in all categories of their testing and
are their findings:
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.
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.
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.
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
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.
Phase Converter Types and Comparison
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.
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.
"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.
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.
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.
Phase Loads from 3 Phase Power Generated on 1 Phase
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
Continue And Read About Additional 3 Phase Power