What are the three terminals found on a single-phase compressor?

In a single-phase compressor, the terminals typically consist of start, run, and common. The start terminal is connected to the starting winding of the motor, which is energized temporarily to help the compressor begin operation. Once the compressor reaches an operational speed, the run terminal takes over to connect the motor to the running winding, allowing it to maintain continuous operation. The common terminal serves as a shared connection point for both the start and run windings, allowing them to work together effectively.

This configuration is essential for the proper functioning of single-phase motors, particularly in applications like compressors, where efficient starting and running are crucial for performance. Understanding these components is vital for anyone working with refrigeration and air conditioning systems, as it plays a significant role in troubleshooting and repairing these devices.