We have carefully researched the different types of
static phase converters on the market and have come to these
conclusions about the static converter technology.
TEMCo Heavy Duty Rotary
Phase Converters provide quality balanced 3-phase power to run
most any three phase equipment at its full rated power for
continuous heavy duty cycles with correct sizing. TEMCo Rotary
Phase Converters are recommended for all applications.
TEMCo only provides products in applications that are safe and
appropriate for the equipment it will provide the power to run.
Static phase converters
operate on a principle that provides the motor or machinery it is
powering only single phase and thus can damage the equipment in
many situations. The static phase
converter does not actually generate 3-phase power
continuously as a
rotary phase converter does, but only
long enough for it to start up. Once the motor has started the
static phase converter circuitry disconnects itself and the motor
continues to run on single-phase power; because only two of three
windings receive power during running, power output is reduced to
1/2 to 2/3. A 15 HP motor will start with the power of a 15 but
run as a 7.5 for example. Whereas a TEMCo Heavy Duty
Rotary Phase Converter does
provide full rated 3-phase power to run your equipment at
full power.
The high starting torque with reduced running power is an
important factor when considering the use of a static phase
converter. Static phase converters are not well suited to machines
that operate continuously close to the maximum rated horsepower of
the motor that operates them.
Lathes are a good example of
this. Although the static phase
converter appears to work well on lathes in the
slower speeds, in the higher speeds the converter is able to start
the lathe turning but the lack of rated horsepower makes these
higher speed settings useless. A
TEMCO Rotary Phase Converter
is best suited for this
application.
When used in the wrong applications static phase converters can
damage the motors and machines that they are meant to operate.
When machinery has any electrical circuitry that requires 3-phase
power it must get true 3-phase power that only a TEMCo Rotary
Phase converter provides. Static phase converters damage the
machinery they are set up to run because they only allow the
motors/machinery 1/2 to 2/3 power they were designed for. Then
when the machinery is put under its full rated load the motor or
machinery will stall out causing it to overheat and burn out. A
TEMCo Rotary Phase Converter provides safe, clean, balanced, full
rated 3-phase power suitable for most every application.
Static phase converters cost more to buy and run equipment on than
Rotary Phase Converters. This is due to the nature of static phase
converter technology. Static phase converters have a short
operational life and wear out more quickly and must be replaced.
When used in many applications a static phase converter will wear
out and need to be replaced every year. When calculating the
converter's cost you must include the cost of multiple static
phase converters plus the cost of any damage to your equipment a
static converter may cause. Whereas TEMCo Rotary Converters
produce safe, clean, balanced 3-phase power and last and last a
very long time.
Duty cycle (The percentage
of time a motor is fully, or close to fully loaded during the time
it runs) is another consideration when operating a 3-phase motor
on a static phase converter. Also consider that if the machine is
operated close to its full
load for any length of time it will not operate
properly when using a static phase
converter. TEMCo Heavy Duty Rotary Phase Converters run
machines at their full rated load reliably and efficiently.
The two most common types of
motors are Wye or
Delta wired. Some motors will
not operate on a static phase converter because the
internal wiring of the motor
is Delta. Delta windings are more common as the horsepower rating
increases. Many imported motors are Delta
connected and will only work on a
TEMCo Rotary Phase Converter.
TEMCo Heavy Duty Rotary Phase Converters' continuous full 3-phase
power can be used to run either Wye or Delta motors or most any
other application that requires 3-phase power with reliability and
efficiency.
If you have additional questions
about your specific equipment after reading through our website
please call (510)490-2187. We are always happy to assist you in
choosing the correct model.
Tower Electric Motor Company has
experience producing single to three phase converters since 1968.
TEMCo uses the latest proven technology to manufacture industrial
grade rotary and static converters. Our products are AC, single to
three phase, 220v and 440v converters. All our phase converters
are built to last using the highest quality standards and are
backed by our warranty.
