Partial Discharge (PD) testing and monitoring is very crucial in detecting the incipient failure into the insulation of medium voltage (MV) and high voltage (HV) assets. Early detection and on-time rectification improve the reliability of the grid with increased revenue.

RUGGED MONITORING partial discharge testing and monitoring systems are designed to work at all voltage levels in the following assets:

• Power Cables: Along the cables, terminations, joints and sealing ends
• Switchgears: Medium Voltage, and Low voltage Metal-clad Switchgears
• Gas Insulated Switchgears (GIS)
• Transformers and Reactors, including Dry Type Transformers
• Rotating Machines (Motors and Generators)

The portable and permanent (continuous) monitoring systems are designed to work at an ultra-high voltage substation (up to 1500kV) with the highest accuracy and reliability. The monitors are compatible with a wide range of sensors i.e. HF (High Frequency), UHF (Ultra High Frequency), Acoustic, Ultrasonic and TEV (Transient Earth Voltages). These monitors act as a data aggregator and analysis system that collect data from PD sensors, performs analysis using advance PD detection, Noise gating, and Fault Categorization algorithms. The algorithms have been tested in high-voltage test laboratories and on-site with different kinds of PD faults in insulation s of all MV and HV Assets.

Each monitor comes with a wide range of communication options. They support a wide range for connections i.e. Serial (RS-485), Ethernet (RJ-45), Fiber Optic Ethernet, wireless and protocols i.e. IEC61850, DNP3.0, Modbus, IEC60870-104, etc. Permanent monitors also provide relay output signals for alarm notification to engineers.

Rugged Enterprise software allows collecting data from multiple partial discharge monitors at single, or multiple substations/sites. The software enables customers to monitor partial discharge of the entire network from one location (headquarter).