In what applications are single-phase motors commonly used?

Single-phase motors are widely used in various applications due to their simplicity and cost-effectiveness, particularly in environments where the demand for power is lower. Household appliances such as fans, pumps, and compressors typically require less power and are designed to operate on single-phase electrical supply. Their ability to start under a low load and maintain efficiency makes them ideal for these applications.

In contrast, applications in industrial machinery and heavy equipment often involve higher power requirements, which typically necessitate three-phase motors for enhanced performance and efficiency. Similarly, commercial air conditioning systems may employ larger and more complex motor setups to accommodate substantial cooling loads. While automobiles do utilize electric motors, single-phase motors are generally not employed for propulsion in that context.

Thus, single-phase motors continue to dominate in household settings where reliable and efficient performance at lower power levels is essential, which makes them suited for appliances like fans, pumps, and compressors.