Rotary three phase converters use an internal motor-generator for single to 3 phase conversion. Isomatic rotary converters, with 600% overload capability and no electromechanical contacts, are ideal for farms, workshops, garages, large buildings, etc. Isomatic Phase Converters primarily supplies the UK (Great Britain and Northern Ireland), the Republic of Ireland, Spain, Canary Islands, Ballearic Islands, Hungary, Turkey, Iran and other countries in Europe and the Middle East. See Business partners for UK, Australia, Canada, USA, Mexico, New Zealand and Pacific Rim. See also our web page 3 phase conversion understanding and selection.
For rotary 3 phase converters: E-mail by clicking including delivery location so we can use an appropriate currency and estimate transport costs, power required in kW or HP and state if you need to derive single phase from one of the 3 phases and neutral, e.g. for an electronic controller on a CNC machine.
The Booster™ A4 is shown in the first two photographs below.
Click to enlarge 
The Booster™ A12 and A16 are supplied with the motor-generator outside the enclosure as shown below in the picture of an A12.
Booster™ rotary phase converters will supply a number and variety of loads at full performance. Unlike 'static' phase converters, they are not limited to driving a single motor, nor do they limit the motor's torque or have a lower limit to output power. The Booster™ range of rotary converters has the unique feature of electronically switching up to 600 % of rated power for up to 10 seconds for 'hard starting' or momentary overload. Solid state switching takes place as the power waveform crosses zero, minimising electromagnetic interference. There are no electromechanical contacts to wear out or open at full voltage (emitting interference). The Booster™ D range has improved voltage balance between phases and incorporates power factor correction. For an explanation of the principles of 3 phase supplies and a guide to 3 phase converter selection, go to the 3 phase converter understanding and selection page
Many properties are, for economic reasons, only connected to one of the three phases of utility power available at the nearest distribution transformer. A single phase supply line was the cheaper option when the premises were built. Similarly, large buildings with 3 phase supplied might still have locations where it is uneconomic or inconvenient to run 3 phase wiring.
If three-phase equipment is to be used, a simple comparison can be made: compare the cost for providing three-phase supply (e.g. distribution transformer, power lines, monthly line charges) with the price of a rotary single to three-phase converter.
Lathe, Drill, Milling machine, Grinder, Saw, Polisher, Shaper, Guillotines, Press, Welder.
Post lift, Hoist, Welder, Wheel balancer.
Pumps, Compressors, Irrigation systems, Air conditioning, Refrigeration unit, Conveyor, Crane, Hoist, Wine press, Olive oil processor, Grain mill.
Computer installations, print rooms, etc.
Booster™ rotary phase converters are suitable for all the applications listed above. They can run one or many motors. They can be compared with other single to three-phase converters available worldwide, except they electronically switch 600 % rated power for up to 10 seconds and need no maintenance because they have no electromechanical contacts.
Rotary phase converters are capable of starting many motors simultaneously, even under load. With a Booster™, motors will reach full speed in the shortest possible time. Motors also maintain their speed when momentarily overloaded.
This unique converter copes well with the most difficult applications: Metal lathes without clutches, hydraulic systems, refrigeration units, wheel balancers, older types of compressors. A Booster™ will cope with start-stop operation, with forward-reverse and with electric brakes.
The Booster™ can be used with Variable Speed Drives.
Install a single-phase industrial wall switch-socket combination. Connect your new converter. Now you have three-phase power for all your electric motor and machine tool requirements.
Motor speeds are constant as with a three-phase supply. Starting motors draw high currents. A Booster™ will produce these currents in order to maintain output voltages. This will draw high input currents for a short time. On the single phase supply side it pays to install heavy cables. This will minimise voltage drop.
Installation instructions and service schematics are provided with each converter. A simple block diagram is shown below.
When an electric motor starts under load, or when a heavy load is applied to a motor, a Booster™ will output up to 600% of its continuous maximum current for up to 10 seconds.
Booster™ rotary converters cope well with motors starting under load, with motors accelerating large inertia and with pumps and compressors starting against pressure.
A Booster™ will operate chillers, cranes, conveyors, hoists and vehicle lifts/ramps starting under load. Due to the higher input currents during Boost mode, single phase supply cables to a Booster™ should be oversized. The resistance per unit length of the cable should be multiplied by the length and by the maximum current to provide the voltage drop. As a rough guide, this should not exceed 10V at peak current.
Efficiency is highest (max. 90%) at a load between 20% and 90% of the rated power. Above and below this range, efficiency is slightly lower. Running idle, a Booster™ will consume about 5% of its rated power.
Boosters™ are totally maintenance-free. Internal motor-generators are brushless and bearings are greased for life.
Boosters™ do not have any life-limiting components such as contacts, contactors or electrolytic capacitors. Internal logic is CMOS, which stays cool even under heavy loads.
Boosters™ are robust and immune from incoming line disturbances, over- or undervoltage conditions and short circuits.
The life of a unit is at least 10000 hours before any component needs to be replaced. The warranty period on Boosters™ is three years free parts replacement.
Maximum continuous ambient temperature is 50 degrees C.
Boosters™ are designed to run induction motors most efficiently. Welders can also be operated but the converter size should be chosen to be larger than the welder input power by 50%. If no power rating is shown then multiply the welding current by 50 for A series converters or by 30 for D series converters. The result will be the converter power rating in Watts for 100 % duty factor, often misnamed duty cycle.
Radio frequency interference and electromagnetic interference are well below legal limits everywhere. Boosters™ are tested for EMC compliance and comply with applicable emission and radiation standards. Boosters™ comply with Wiring and Safety Regulations.
Boosters™ are robust and immune from incoming line disturbances, over- or undervoltage conditions and frequent short circuits. They resist the "dirty" supply from rural power lines. Brown-outs, black-outs, unstable power lines, over and under voltage will not harm a Booster™.
The standard input voltage is 220-240V single-phase and the standard output voltage is 380-415V 3phase. The output frequency is always as the input frequency: 47-63 Hz. Boosters™ are also available for other single phase, two phase or split phase input voltages such as 110-127V, 208V, 400V, 460V or 480V. Output voltages can be 220V, 230V, 240V, 400V, 415V, 460V or 480V between phases.
Customers in the UK and Europe can contact Isomatic UK or our business partner Boost Energy Systems Ltd
http://www.boost-energy.com
E-mail:info@boost-energy.com
Tel: +44 (0)1344 303 311 Fax: +44 (0)1344 303 312
For customers in Asia, New Zealand, Pacific Islands, etc. we suggest you approach our business partner Eurotech Ltd
http://www.eurotech.co.nz
E-mail: info@eurotech.co.nz
Tel: +64-7-8237 234 Fax: +64-7-8237 346
For customers in Australia, we suggest you approach our business partner Power Change PTY LTD
http://www.powerchange.com.au
E-mail: info@powerchange.com.au
Tel: +61-(02)-9441 2220+61-(02)-9980-9718
For customers in the USA, we suggest you approach our business partner Boostek
http://www.boostek.com
E-mail: info@boostek.com
Tel: +1 (307) 234 2366 Toll Free (USA) 1 (877) 266-7823
For customers in Canada, we suggest you approach our business partner K2C Industrial Automation Inc.
http://www.k2ciautomation.com
E-mail: info@k2ciautomation.com
Tel: +1 (403) 210 0699
For customers in Mexico, we suggest you approach our business partner Blantek SA DE CV
E-mail: blantek@megared.net.mx
Tel: +52 3 3124 1630 Fax: +52 3 3810 9328
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