Prefabricated cabinets, both primary and secondary, play an important role in modern power systems. Functionally speaking, they aim to integrate and accommodate various electrical equipment and components. For the primary side, it usually includes equipment such as transformers, circuit breakers, and isolating switches, which are crucial for the initial steps of power transformation and distribution. These components in the prefabricated cabinet help to increase or decrease voltage according to the requirements of the power grid, and safely disconnect or connect power sources when needed. On the secondary side, it includes measuring instruments, control relays, and communication equipment. This allows for precise monitoring and control of power flow. Measuring instruments can measure parameters such as voltage, current, and power, providing valuable data for system operation and analysis. Control relays can be used to automate certain operations and respond to different electrical conditions, thereby improving the reliability and efficiency of the power system. Prefabricated cabinets also have several advantages. They are pre assembled in a factory controlled environment to ensure high quality and consistency. This reduces on-site installation time and complexity. In addition, its compact design and modular structure make it easy to transport and install, especially in areas with limited space or difficult access.

Overall, from power generation to distribution and utilization, primary and secondary prefabricated cabinets are crucial for the efficient and reliable operation of the power system.