What frequency is commonly used by commercial power companies?

Commercial power companies in the United States and many other countries commonly use a frequency of 60 cycles per second, which is also referred to as 60 Hertz (Hz). This standard is established to ensure efficient transmission and distribution of electrical power, as well as to maintain compatibility with consumer devices that operate at this frequency.

Using 60 Hz allows for the design of motors and transformers that can operate effectively and consistently, ensuring that electrical equipment runs smoothly and efficiently, providing stable and reliable power supply patterns familiar to consumers and industries alike.

While other frequencies like 50 Hz are used in some parts of the world, the predominant usage of 60 Hz in North America distinguishes it as the standard for that region. This frequency standardization helps maintain uniformity within electrical infrastructure and consumer electronics, which can often be sensitive to variations in frequency.