Online UHF PD Monitoring System for GIS

Product Advantages

Superior UHF Detection Performance

The GIS switchgear partial discharge monitoring system features a wide 500–1500 MHz detection range that aligns with global industry standards, ensuring comprehensive capture of PD signals from common GIS defects including free metal particles, insulator cracks, and floating potentials. Its exceptional -70–10 dB dynamic range effectively distinguishes weak PD signals from background electromagnetic noise, delivering accurate diagnostic data even in high-interference industrial environments.

High Environmental Resilience

Built to withstand the harshest operating conditions, the system functions flawlessly across temperatures from -40°C to 85°C with ±0.5°C accuracy and humidity levels from 0–100% RH with ±2% RH precision. It complies with IP65 standards for dust and water resistance, making it ideal for deployment in desert regions, coastal areas, and high-altitude locations.

Flexible Power and Communication Options

The system supports dual power supply modes: long-life battery (5+ years standby) and wired power, ensuring uninterrupted monitoring even during grid outages. It offers flexible communication via wireless 433 MHz and RS485 interfaces, enabling seamless data transmission to centralized monitoring platforms and integration with existing SCADA systems for remote management.

Non-Invasive, Quick Installation

With compact dimensions of 121mm × 121mm × 55mm and magnetic suction mounting, the real-time partial discharge detection system can be installed externally on GIS enclosures without requiring equipment shutdowns or invasive modifications. This non-invasive approach minimizes operational disruption and reduces installation costs for retrofitting projects.

Applications

• Substation Monitoring: Ideal for HV/MV substations to monitor GIS circuit breakers, busbars, and insulators, preventing unexpected outages and reducing maintenance costs.

• Renewable Energy Grids: Ensures reliable operation of GIS switchgear in solar and wind power plants, mitigating risks associated with voltage fluctuations and environmental stressors.

• Industrial Facilities: Supports predictive maintenance in heavy industries such as mining and manufacturing, minimizing production downtime caused by electrical equipment failures.

• Transmission Networks: Monitors GIS components in HVDC and HVAC transmission systems, ensuring compliance with strict safety and performance standards.

Selection Guide

When selecting the LY-JF01 system, consider the following factors:

• Equipment Type: The system is optimized for GIS switchgear; for other high-voltage equipment, consult our technical team for customized solutions.

• Environmental Conditions: Ensure the operating temperature and humidity ranges match your installation site requirements.

• Communication Needs: Choose between wireless 433 MHz for remote sites or RS485 for wired infrastructure integration.

• Power Availability: Select battery power for locations with unreliable grid supply or wired power for permanent installations.

Operation Guide

• Installation: Mount the sensor unit externally on the GIS enclosure using the magnetic suction base. Ensure proper alignment and secure attachment.

• Power On: Connect the power supply (battery or wired) and verify the system status indicator lights are functioning correctly.

• Configuration: Set up communication parameters to connect the system to your centralized monitoring platform.

• Monitoring: The system will automatically begin 24/7 monitoring of PD activity. Alerts will be generated when abnormal discharge levels are detected.

• Maintenance: Perform annual visual inspections and replace the battery every 5 years for battery-powered units.