1. Core equipment testing is the foundation, photovoltaic modules need to be visually inspected for cracks, hidden cracks (EL test), occlusion and hot spots (infrared thermal imager), and open circuit voltage and power attenuation are measured; The inverter monitors input and output parameters, temperature and fault alarms, and tests the conversion efficiency and harmonics. The combiner box checks the overheating of the fuse and wiring, and tests the lightning protection module.
2. Electrical system testing covers distribution cabinet wiring, three-phase balance, cable insulation resistance and laying conditions; The grounding system measures the grounding resistance (≤4Ω) and checks the connection reliability. Lightning protection facilities test the operation performance of lightning rods, down conductors and lightning protectors.
3. Performance and environmental monitoring The power generation is counted through the SCADA system, and the loss is analyzed compared with the theoretical value. Monitor irradiance, ambient and component temperature, and wind speed to optimize power generation efficiency and safety.
