New Frontier for Power Safety: Switchgear Partial Discharge Monitoring

Precise sensing, reliable alerts

The new-generation online partial discharge monitoring device is designed to capture internal partial discharge signals in power equipment in real time. It is widely applicable to critical assets such as transformers, switchgear, and cables. By detecting early signs of insulation degradation, the device helps prevent outages caused by insulation failures, enabling users to shift from reactive response to proactive warning and significantly improving power supply reliability.

How it works: Multi-sensor collaboration, intelligent analysis

The device uses multiple dedicated sensors deployed on monitoring equipment to precisely capture electrical, ultrasonic, or UHF signals generated by partial discharge. After signal conditioning and acquisition, an embedded analysis unit performs noise reduction and feature extraction to effectively filter out environmental interference. The backend software system then enables real-time display of key parameters such as discharge intensity and frequency, trend analysis, fault alerts, and historical data storage, helping operations personnel comprehensively monitor changes in equipment insulation status.

Core Components

Sensor Module

Supports multiple sensor types including HFCT, AE, and UHF. Flexibly configurable based on equipment type and application scenario to adapt to complex field environments.

Data Acquisition Unit

Features high sampling rates and strong anti-interference capabilities. Responsible for converting and pre-processing sensor signals to ensure the accuracy and integrity of raw data.

Analysis and Communication Unit

Real-time analysis of collected data, with upload to a monitoring backend via Ethernet or 4G/5G networks to support centralized remote monitoring.

Backend Software System

Provides a visual data interface with fault localization, trend analysis, and alerting capabilities. Seamlessly integrates into the unified operations platform for centralized management and intelligent decision-making.

Typical Use Cases and Value

This device is deployed in 110kV and higher voltage substations, new energy power plants (wind, solar, etc.), and industrial high-voltage distribution systems. Continuous online monitoring effectively extends equipment lifespan, slows insulation aging, reduces costs for manual inspections and outages, and supports the integration of safe operations with intelligent maintenance in modern power systems.

Our company is dedicated to the R&D and innovation of power equipment condition monitoring technologies. The newly released online partial discharge monitoring device integrates multiple proprietary technologies, including high-sensitivity sensing, intelligent anti-interference, and cloud-based collaborative analysis, further enhancing our smart operations and maintenance product portfolio. Moving forward, we will continue to deepen our expertise in power equipment safety monitoring, providing a solid foundation for building a highly reliable and intelligent new power system.