Phase Converters
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Our New Heavy Duty Solid State Phase Converters will change the way you think about three phase motor conversion. These static converters are 100% solid state, no relay chattering, no re-generative effects on shut off, and no contacts to burn. There are many applications where single phase motors are just not available or very expensive. Consider using a high service factor three phase motor, and a Heavy Duty Model Phase Converter system. You end up with a very efficient and reliable single phase motor. Now it is both practical and cost effective to convert your three phase motors to single phase.
PHASE-A-MATIC STATIC PHASE CONVERTER 

RUNS THREE-PHASE MOTORS FROM SINGLE-PHASE POWER AT 2/3 RATED HP* 

*Refers to wye-wound motors; delta-wound motors will run at 50% rated HP. Delta-wound motors are very rare in the USA, occasionally being found on some imported equipment, and are particularly found on German and Italian machines. 

PHASE-A-MATIC™ Static Phase Converters have been developed, tested, and thoroughly proven over a 43 year period demonstrating exceptionally high reliability and long life. These converters are the workhorse of many commercial uses and multitudes of home shop machines. 

LIFE EXPECTANCY: The Static Converter has been in use for approximately 43 years and has already proven itself to be extremely reliable when properly applied. Phase-A-Matic™ was recently able to purchase back the first one that was ever sold, and it is still working fine. It is reasonable to expect the converter to be in good working condition and service for 20 or 30 years or more. We continue to hear back from customers who have them still running their equipment faithfully after 20 years and more. 

Uses include: Lathes, Mills, Grinders, Drills, Saws, Metalworking and Woodworking Equipment, Printing Equipment, Sewing Machines, Garbage Disposals, Food Processing Equipment, Meat Grinders, Food Mixers and Blenders, Conveyer Belts, and numerous other uses. 



METHOD #1 

Using the PHASE-A-MATIC™ Static Converter only will produce approximately 2/3 normal HP.* This method is inexpensive, the most popular, provides excellent results on most machines tools and numerous other uses. Motor speed is not changed. Most two-speed motors, power feeds, coolant pumps, etc., will operate normally. Motor will instant reverse. There is nothing to change. All switch gear will work normally. 

*Refers to wye-wound motors; delta-wound motors will run at 50% rated HP. Delta-wound motors are very rare in the USA, occasionally being found on some imported equipment, and are particularly found on German and Italian machines. 



METHOD #2 

FOR FULL OR CLOSE TO FULL HP 
~~ Configure as a rotary converter using Phase-A-Matic™ static unit ~~ 

Full or close to full HP can usually be obtained by running a three-phase motor and PHASE-A-MATIC™ Static Converter combination as shown on the Installation Instructions. When running unloaded, the windings of the motor function as a rotary transformer or generator while consuming very little extra power. The Idler Motor needs to be at least 50% larger than the largest motor that you want to run to accommodate the higher starting current. A good quality 3600 RPM, three phase wye-wound, 220V motor is the best choice. 1800 RPM motors can be used on applications not heavily loaded. Used three-phase motors are inexpensive and readily available. 

When using this method, it is possible to run multiple machines as long as the idler motor is large enough to handle the largest load it would ever have at any one time. For instant reversing of the load motor, as in rigid tapping, the idler motor must be a minimum of twice the HP rating of the load motor, and perhaps more. 

The Static Converter is sized to the HP of the idler motor, not the load motor(s). 
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