We bought some transformers in Japan to use here in the US. Thus far, everything works fine (stereo, hair dryer, etc.)–until today.
BTW, Japan’s electricity is 100 V everywhere, 50 Hz in the east and 60 Hz in the west (yes, that’s weird that it is different in two regions in such a small country). At any rate, the electricity is pretty similar to that of the US, and the plug size is the same.
Today, however, we plugged our rice cooker into the transformer and it made a werid buzzy/electricity sound. Nor would it work at all–press a button, nothing.
But when we just plugged it into the wall, it worked fine. We made rice, tasted great.
Why was it different with the rice cooker? (For the record, the wattage of the cooker was below that of the transformer.)
Will the 110 V electricity we have in the US eventually fry out the cooker, which was designed for 100 V?
Thanks for your help!