Which component would typically not be found inside an Automatic Transfer Switch?

An Automatic Transfer Switch (ATS) is designed to manage the transfer of power between different sources, typically from primary to backup power supplies. The components included in an ATS serve specific functions related to controlling and monitoring the switchover process.

The presence of the engine start control and voltage relay within an ATS facilitates the operation of backup generators. The engine start control is crucial for activating the generator when the primary power source fails, ensuring that power can be restored promptly. The voltage relay monitors the voltage level of the primary power source to determine if it has fallen below acceptable limits, which triggers the transfer to the backup source when necessary.

A logic panel is also a fundamental component in an ATS, as it processes inputs from various sensors and relays to make decisions about when to transfer power. This is part of the ATS's system for ensuring reliable power continuity and managing various operating conditions intelligently.

In contrast, a current balance relay, which is used to detect differences in current between the primary power and backup power sources to prevent unbalanced loads, is typically not a standard feature of an ATS. This device is more commonly associated with load management systems or protective relays that are outside the basic functions of an ATS. Its absence in the ATS design highlights the focused