Which representation typically illustrates a three-phase power system?

A Single-Line Diagram is the correct choice for illustrating a three-phase power system. It provides a simplified representation of the electrical system, showing the various components and their connections using a single line to represent multiple phases. This format makes it easier to visualize the relationship between different elements, such as generators, transformers, and loads, without the complexity that comes with illustrating every single phase separately.

The Single-Line Diagram is particularly valuable in power distribution and design in data centers, as it allows engineers and technicians to quickly assess the configuration and status of the electrical system. This can be crucial for troubleshooting, planning design upgrades, or ensuring compliance with safety standards.

In contrast, other representations like Block Diagrams are more focused on showing the functional relationships between system components rather than their electrical connections. Flowcharts depict processes or algorithms rather than electrical systems, and Network Diagrams illustrate interconnected networks, often in telecommunications, rather than power systems. Therefore, for the specific need of illustrating a three-phase power system, the Single-Line Diagram is the most appropriate and effective choice.