500VA 110V 60Hz to 220V 50Hz frequency converter with built-in step up transformer, also can change 220V 50Hz to 110V 60Hz power, output variable-frequency and variable-voltage for global appliance.

Specification:

Features and Safe Usage Guide

Here is a video that shows you the main features of RDDLZ single phase frequency converter and how you can use it to effectively and safely power electric equipment.

Tips: Why is the power supply 50Hz/60Hz, neither higher nor lower?

The frequency is related to the structure and material of the generator, motor and transformer. The synchronous speed of the bipolar generator in 50Hz is 3000rpm. However, if the frequency reaches 100Hz, the revolving speed will be 6000rpm. Such a high speed will cause many problems of generator manufacturing. In addition, in terms of application, too high frequency increases reactance and electromagnetic loss, intensifies idle work quantity. Moreover, if a relatively low frequency, such as 30Hz is used, the transformation efficiency is low, which will not be beneficial to the transformation and communication of the AC current.

The discrepancy of the power grid frequency depends on different calculation habits. The America starts early in large-scale electricity generation. The calculation tool used at that time is mainly the British (duodecimal number system) sliding scale. For better calculation, 60Hz is used. All relatively late power grids adopt decimal data, so 50Hz is more convenient.