Moving from USA to Europe. 110v/60Hz Against 220v/50Hz?
Answer:
Anything that has an induction motor in it will run faster on 60 Hz than on 50 Hz. This would include both the fan motor and the compressor in an A/C. Whether the device overheats or not when you run it on 50 Hz depends in detail on how it was designed. For an A/C, even if it does not burn out, the cooling capacity will be lower because the compressor will run slower.
Anything that is purely resistive (heaters, incandescent lights) will work fine as long as the voltage is correct. Flourescent lights, whether with electronic or traditional inductive ballast, probably won't work very well and might overheat.
TVs, VCRs will not be useful - not (only) because of the frequency difference, but also because N. America uses NTSC, whereas Europe uses PAL or SECAM.
So, the answer is, it is hard to say for sure, but given the cost of moving such heavy, bulky items and the chance that they won't work right, you would probably be better off to plan on replacing your appliances with ones designed for the area where they are used.
the last answer was pretty good, but i'd like to add that a lot of electronic products are designed to work on 50 or 60 Hz, and will even say right on the power supply or id sticker. in those cases the item will be fine.
Yes, you are right if you will buy a step up or step down transformer it must be higher power rating than the appliance being supplied into. But regarding the frequency, this transformer will not able to change the line frequency of the supply voltage. And also, you are right that the compressor will run at slower speed on 50 Hz supply when it is designed for 60Hz. I would suggest that you have to buy new AC rather than using it with its supply not as per the designed.
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