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Periodic Partial Discharge Monitoring for HV GIS

DMS’s UHF Portable PD Monitor is used to undertake periodic partial discharge surveys in substations to provide early warning of developing faults - enabling corrective action to be taken before complete breakdown occurs.  Employing the same advanced UHF technology as the permanently installed PDMG-R System, the portable provides a PD monitoring solution for low-cost/low-value GIS where continuous, on-line PD monitoring would be uneconomical.  The monitor, with integrated laptop, is easily transported in its heavy-duty, aluminium case. PD data from up to 3 UHF couplers is collected and stored, and the type of defect identified automatically through the in-built expert system analysis program. The collected data can also be retrieved remotely via connection to a LAN or modem.  Additionally, the PDMG-P can be used to make the PD measurements now integral to high-voltage GIS commissioning tests.

Features

• Fully protected against transient overvoltages
• Automatic self-test
• External sync 3-10V RMS
• Sync output 5V+ square wave
• Integrated DC supply for DMS active couplers
• 3 off 5 m long coaxial cables with N-series connectors
• PD is interpreted automatically by expert system programs
• External interference which might be picked up is categorised

For more information, please download the product brochure below.