How do the industrial and mining enterprises have a tie-line radial power supply system?

Figure 1-3 illustrates the power distribution and wiring configuration of a two-way industrial and mining enterprise utilizing a contact line radial power supply system. This setup features a two-phase high-voltage incoming line with two independent power sources, combined with a bus-segmented dual-circuit cross-powered distribution system. Such a configuration supports advanced automation of electrical equipment, making it highly suitable for environments requiring reliable and continuous power supply. However, this design requires a larger number of high-voltage switchgear components, which increases both the initial investment and operational complexity. Despite these challenges, it is well-suited for applications where primary loads must be continuously powered without interruption, ensuring stability and safety in critical operations.