High-Capacity Testing System Based on Power System Supply

With the expansion of power system scale and the advancement of new energy grid integration, the performance verification of medium and high-voltage power equipment faces increasingly stringent requirements. This paper addresses the issues of low efficiency, poor reproducibility, and safety hazards in traditional large-scale testing by proposing a system model for a high-capacity test system and a measurement and control system solution based on power system power sources. By establishing simulation models of the main test circuits, the paper analyzes the short-circuit currents and Transient Recovery Voltage (TRV) waveforms of high-voltage switchgear and introduces a standardized method for configuring test circuits. This method has been validated through simulations and physical tests, demonstrating its feasibility and accuracy. Based on this, a standardized method for test circuits is proposed, and its feasibility is verified through practical testing. Additionally, an automated monitoring and control system is designed to streamline the testing process, reduce human intervention, and ensure the accuracy of test data, achieving full-process automation in test parameter selection, circuit connection, and data acquisition. This system significantly enhances testing efficiency, safety, and consistency, effectively improving the efficiency and reliability of inspections and testing for medium and high-voltage power equipment.