What is 50Hz, 60Hz?
Alternating current (AC) is changing the direction of the current periodically; Cycle is the time of a cyclical change of the current; Frequency is the times of the current changes per second, unit Hertz (Hz). AC current direction changes 50 or 60 cycles per second, in accordance with 100 or 120 changes per second, then the frequency is 50 Hertz or 60 Hertz.
50 Hz and 60 Hz power sources are most often used in international power systems. Some countries (regions) commonly use 50Hz power gird while other countries use 60Hz power grid, but some appliances are not designed for both frequency operation. Then it comes with Frequency Converter.
How to change 60Hz to 50Hz?
Frequency converter can convert fixed frequency (50Hertz or 60Hertz) AC power to variable frequency, variable voltage power through AC → DC → AC conversion, output pure sine wave, and adjustable frequency and voltage. It is different with variable frequency drive which is special for motor speed control only, and also different with ordinary voltage stabilizer. Ideal AC power supply is stable frequency, stable voltage, resistance is approx zero and the voltage waveform is pure sine wave (without distortion). Frequency converter output is very close to the ideal power supply, hence, more and more countries use frequency converter power supply as a standard power source in order to provide the best electrical power supply environment for appliances to estimate their technical performance.
By using a frequency converter, you can convert both 60Hz to 50Hz and 50Hz to 60Hz for home appliances, it is also a voltage converter for changing 110V to 220V.