1. Project Background
With increasing demands for safe operation and intelligent maintenance of power systems, traditional manual inspections can no longer meet the requirements for real-time, accurate, and efficient monitoring. To enhance equipment reliability, a 110kV substation in Jiangxi Province introduced an advanced online partial discharge (PD) and temperature monitoring system developed by HuaWang Technology. By deploying PD and temperature sensors, the system enables real-time status monitoring and early warning for key substation equipment.
2. Project Installation Process
Switchgear Wireless Temperature and PD Monitoring Unit
This all-in-one intelligent monitoring device integrates temperature monitoring and partial discharge detection. It wirelessly monitors the temperature and insulation condition of critical components such as cable joints and busbars in real time. The system offers early fault warning, enhances intelligent O&M capabilities, and features easy installation, making it a key tool for ensuring switchgear operational safety.
3-in-1 PD Sensor
The intelligent 3-in-1 partial discharge sensor combines three detection technologies: Ultrasonic (AA), Transient Earth Voltage (TEV), and temperature & humidity monitoring. It is widely used in substations and switching stations to monitor PD activity and environmental conditions in ring main units (RMUs), switchgears, and other electrical equipment, helping to detect hidden faults early and ensure stable and safe equipment operation.
Clip-on Passive Temperature Sensor
Powered by electromagnetic waves from the antenna, this sensor requires no external power supply and supports wireless transmission. It uses a screw-lock clamp for secure installation on various types of switchgear tulip contacts, providing real-time, contact-based temperature monitoring of circuit breaker components—safe, accurate, and reliable.
RFID 8-Channel Temperature Collector
This device integrates data acquisition, storage, and alarm functions. It supports both wired and wireless communication modes and is compatible with third-party gateways or backend systems. Fully compliant with the technical specifications of China Southern Power Grid and relevant industry standards, it provides a robust solution for smart monitoring of power equipment.
3. System Commissioning
After installation and commissioning, the system has operated stably, with data accuracy and real-time performance meeting all expected goals. It provides a solid data foundation for intelligent operation and maintenance of the 110kV substation.
