The high voltage ac electric power PD is equipment insulating medium when the cracking with penetrating discharge phenomenon, is the most direct evaluation equipment insulation states effective electrical monitoring method, based on the IEEE switch cabinet put monitoring guidelines for development of GFM insulation fault alarm device is a set of excellence in medium voltage switchgear range of microcomputer control continuous PD monitoring devices.
Happened in switchgear and sealing mother insulator bus on the insulation fault accident quite common, caused by sudden power outages, equipment damage, and potential problems relative serious fault can't be found when testing the power shortage. And the insulation fault development is quite rapid, often in the two times between power test can rapid development from mild to quite serious. GFM is a comprehensive solution for power distribution equipment insulation fault monitoring effective means.
GFM could make up for routine preventive testing of medium-voltage distribution equipment state monitoring the shortcomings and prevent unnecessary impact, can effectively capture damage occurred in electrical equipment on the insulation of the potential failure. The sensor input device can be expanded the number, the system can connect the SCADA system, is a large factory electricity and other important power distribution equipment the insulation of the ideal condition monitoring and warning tools.
• Don't stop in the condition of on-line insulation monitoring
• In the normal operation of the equipment under the state more precise data obztained
• Can monitor to the generation of insulation fault and change speed
• Simultaneous tracking other influence of the parameters of the trend of partial discharge activity, including load, temperature, and humidity
• Reduction of unnecessary maintenance. Because you have been online with continuous monitoring equipment, so get more accurate data of the equipment support your decision
• The more efficient configuration of human resources. Related people don't need to spend time looking for fault it and focus on repair fault and other more important things
• Saving your spending
Monitoring system for online monitoring the following parameters:
• The PDI (PD Intensity) : Partial discharge strength, is Partial discharge monitoring PDI one of the important indexes, it directly reflect the switch cabinet was monitoring equipment put the size of the local power.
• Pps: per second to partial discharge pulse frequency Pps reaction monitoring objects within 1 second of partial discharge in the frequency of linear analysis, Pps parameters, we can know the severity of the partial discharge, insulation cracking degree.
• Qmax: partial discharge pulse maximum. In addition to influence of partial discharge temperature, humidity, current, voltage, active power and reactive power.
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Partial Discharges Monitoring System
