Research on the Current Status and Development Direction of Partial Discharge Monitoring and Diagnosis Technology for Large Pumped Storage Units

The intelligent on-line monitoring of partial discharge of large pumped storage unit is an important means to ensure the safe and stable operation of the unit. In foreign countries, the sample base of local discharge of large generators and the core technology of local discharge monitoring are strictly blocked, and the monitoring level of domestic large generators is much lower than that of foreign countries. At present, the intelligent online monitoring system of the bureau discharge of large pumping and storage units is widely used in industrial sites, which can realize the integration of local monitoring and central management system, detect potential faults, reduce the occurrence of sudden power outage accidents, and improve the reliability of power supply.