What is the function of 120 V to 120 V isolation transformers in the lighting distribution system?

The function of 120 V to 120 V isolation transformers in a lighting distribution system is primarily to isolate circuits of convenience receptacles from the remainder of the lighting system. This isolation is crucial because it enhances safety by reducing the potential for electric shock and helps to minimize interference from noise and harmonics that may affect other components of the lighting system.

By using these transformers, different electrical circuits can operate independently without influencing each other. This is particularly important in settings where devices requiring varying levels of sensitivity and stability are used, as it ensures that sensitive electronics are protected from fluctuations and disturbances in the power supply that might occur from other parts of the system.

While boosting voltage levels, regulating current, and providing backup power are important functions in various electrical applications, these are not the primary functions of the isolation transformers in this context. The key benefit of using isolation transformers is the increased safety and performance clarity they bring by decoupling the circuits they serve from each other.