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Phase-a-matic pam-900HD static phase converter
Got three-phase machines and only single-phase power? We've got the solution!
PHASE-A-MATIC PAM-900HD 4 to 8 HP Heavy-Duty Static Phase Converter:
Static Phase Converters have been developed, tested, and thoroughly proven over a 39-year period demonstrating exceptionally high reliability and long life. These converters are the workhorse of many commercial uses and multitudes of home shop machines.
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 switchgear will work normally. For additional application notes please check with the manufacturer s website.
Before purchasing, please, check to see what phase converter will fit your specific application. Follow this link to the manufacturers website for specific applications: Phase Converter Sizing Applications Need sizing help? Click "Contact Seller" and describe your application.
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.
What type of converter should be used?
The most important question is whether or not the motor is heavily loaded. You must keep in mind the fact that the motor will produce approximately 2/3 of its rated horsepower when running on the static converter. If the motor is loaded beyond that point, you must use a Rotary Converter or use method number 2 as explained in the Installation Instructions. Otherwise, you must unload the motor by reducing the motor pulley diameter by 1/3, or increase the motor horsepower size by 50% to accommodate the loss of power.
Next you must determine whether to use a Regular Duty or Heavy Duty converter. Keep in mind you can always use a Heavy Duty converter in place of a Regular Duty one. A Heavy Duty converter will not provide greater horsepower. However, there are some static converter applications for which you should always use the Heavy Duty series.
1. Frequent starting (more than once a minute)
3. Unattended equipment, such as air compressors
4. Long, heavy starting cycles, such as lathes without a clutch, flywheel driven equipment, etc.
6. If there is a chance of the motor being stalled during use (woodworking equipment, etc.)
What horsepower range converter should be used?
Next, you must find the proper horsepower range for the application. The largest motor on the machine, or idler motor if used, must fall within the minimum and maximum ranges of the converter. Two speed motors are usually dual horsepower. For example, a 3 horsepower 3600 RPM motor is 1-1/2 horsepower at 1800 RPM. You should select a converter with a minimum and maximum range which will accommodate both horsepowers. However, with Taiwanese and Chinese motors, the larger horsepower should be at the lower range of the converter whether it is a two speed motor or not. For example, for a 5 horsepower Taiwanese motor you should use a 4-8 horsepower range converter, even if it is a two speed motor with 2-1/2 horsepower on the low speed. This is because Taiwanese and Chinese motors draw more amperage during start than do domestic motors and therefore require a slightly larger converter than would normally be used. A larger size converter will not provide greater horsepower.
A few addtional items to remember:
1. The first motor to start on the converter must fall within the minimum and maximum horsepower range on the converter. However, after the first motor has started, motors below the minimum range may be started and can usually be left running as the main motor is stopped and started.
2. Do not add the horsepower of the power feed, coolant pump, or other accessory motors when sizing a converter. The only time you would add the horsepower of two or more motors together would be if they always start at exactly the same time.
3. A larger size converter or a Heavy Duty series converter will not produce greater horsepower than a Regular Duty converter.
Heavily loaded equipment usually consists of equipment with pumps, blowers, fans, compressors, etc.
4. If further technical assistance is required, click "Contact Seller" and describe your application.
Method #1: Run three-phase motor from single-phase power at 2/3 rated HP-
Using the PHASE-A-MATIC? static converter alone will produce approximately 2/3 normal HP.* This method is inexpensive, the most popular, provides excellent results on most machine tools and for numerous other uses. Motor speed is not changed. Most 2-speed motors, power feeds, coolant pumps, etc. will operate. 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 rarely made in the United States, but are occasionally found on some imported equipment, and particularly on German and Italian machines.
Method #2: For full or close to full HP-
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).
Your satisfaction is assured. You have 20-days to return or exchange the unused item. All returns are subject to a 15% restocking fee. This fee will be deducted from the refunded amount. All returns are to be sent 'freight prepaid'. Returns will not be accepted without a 'Return Authorization Number'. Obtain this number by contacting us direct.
This item is backed by a 12-month limited manufacturer's warranty. For more information on this manufacturer's warranty, contact PHASE-A-MATIC, Inc.
Questions or comments? Click "Contact Seller".
More info on Static Phase Converters from :
Installation/Instruction Sheet
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