Online PD Monitoring System for GIS & GIL

GIS (Gas Insulated Switchgear) and GIL (Gas Insulated Transmission Line) degradation might lead to complete breakdowns. PDGuard-G5000 detects and alerts various defects inside of GIS or GIL by analyzing UHF signals generated by partial discharge. It analyzes and categorizes PD signal continuously and alerts the condition of GIS or GIL to users via emails or SMS.


  • Electric companies
  • Power plants
  • Large industrial consumers


  • + Enhances system reliability and reduces risks
  • + Detects incipient faults in real-time before failure, asset damage or loss of power occurs
  • + Prolong GIS or GIL cycle life and improves the preventative maintenance
  • + A better risk assessment can be made automatically


  • Superior reliability and accuracy
  • Intelligent remote access management
  • User-friendly operation
  • Enhanced noise control