Which system allows correction of faults while maintaining normal operation of other loads?

The looped primary system is designed to enhance the reliability of electrical distribution networks. One of the key features of this system is its ability to allow for the correction of faults without disrupting the normal operation of other loads.

In a looped primary system, there are multiple pathways for electricity to flow. If a fault occurs in one section of the system, the electricity can be rerouted through alternative paths. This redundancy is crucial because it maintains the continuous supply of power to unaffected areas, thereby ensuring that other loads operate normally while repairs are made to the faulted section. This capability is particularly important in critical infrastructures, such as hospitals or data centers, where uninterrupted power is essential.

In contrast, other systems like radial or feeder systems typically do not offer the same level of fault tolerance. A radial system, for instance, has a single pathway for electricity flow, and any fault on that path would lead to service interruption for all connected loads. Therefore, the looped primary system stands out for its robustness in fault management while ensuring that other operational loads remain unaffected.