How to convert 110v/120v 60Hz to 220v/230v/240v 50Hz

Home appliances, like TV, speaker, lights, may work with both 50 Hertz and 60 Hertz, but some appliances especially with electric motor inside it, like air conditioner, fridge, can only work with 50Hz or 60Hz. If a 50 Hz motor working on 60 Hz power system, the motor speed will be 20% faster, then cause over temperature and shorten its service life.

We all know, most European and Asia countries power systems are 50Hz, 220V (or 230V, 240V), but American countries are 60Hz, 120V (or 110V, 220V, 230V, 240V). Suppose a UK (230V 50Hz power) family move to US (120V 60Hz power) with their home appliances, those appliances are all designed for 230V 50Hz power, but can NOT work (or not work well) in 120V 60Hz power supply. In this case, we need something to change 60Hz 120V to 50Hz 230V to ensure the appliances work well.

Then it comes to pure sine wave static frequency converter, with variable frequency variable voltage output.

Static frequency converter can change fixed frequency (50Hz or 60Hz) power source to variable frequency power through AC → DC → AC conversion, output pure sine wave power. At the same time, there is a step up (or step down) transformer built-in the frequency converter to convert 120V (110V) to 220V (230V, 240V).

Static frequency converter

Related Source: How to select a Frequency Converter?

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Comments

12/31/2016 3:26 AM
Please suggest the economical converter for 60hz, 110v output from 50hz, 230V input. I have to run a 150watts appliance (induction motor) imported from US.
12/31/2016 3:28 AM
A 120V motor should be a single phase device. Assuming this is correct it is likely that the motor also uses a start switch and capacitors. Either way I would not suggest using a frequency drive. I think simply using a 230V/120V transformer rated for 50 Hz would be sufficient. The motor will suffer a both decrease in speed and in HP of about 15% but should otherwise run. The capacitors are generally rated for 50/60Hz so it should be fine. Otherwise, replacement of the motor would be the best option.