As power systems become increasingly complex, the insulation health of switchgear, ring main units (RMU), gas-insulated switchgear (GIS), transformers, cables, and overhead lines has become a critical indicator for operation and maintenance. Partial discharge (PD) is an early warning sign of insulation aging and potential equipment failure. Early detection of PD is vital to prevent power outages and costly damage.
The handheld partial discharge detector is a powerful tool for on-site operation and maintenance. Equipped with advanced sensor technology, it efficiently captures transient earth voltage, ultrasonic, high-frequency current, and ultra-high-frequency (UHF) signals, allowing fast judgment of whether electrical equipment is experiencing partial discharge. With its compact size and easy-to-use design, the device is highly suitable for routine inspections across all types of power facilities, improving both safety and efficiency.
Beyond real-time PD signal detection, the instrument also features intelligent analysis functions, capable of identifying different types of discharges and providing fault severity indications. This enables maintenance personnel to quickly understand equipment conditions. Combined with a data management platform, the handheld PD detector supports data storage, historical review, and trend analysis, offering scientific evidence for long-term health management of power equipment.
Typical application scenarios include:
- Switchgear and RMU inspection: Detect minor discharges early to prevent major faults.
- Transformer and GIS monitoring: Accurately locate potential insulation failures.
- Cable and overhead line testing: Enhance inspection efficiency and ensure grid reliability.
Choosing a handheld partial discharge detector makes power equipment inspection safer, faster, and more reliable, making it an indispensable tool for modern power system maintenance.