The Kelman DGA 900 PLUS builds on the standard 9 gas DGA and moisture capabilities of the DGA900 by enabling the addition of extra sensors, electronic cards and firmware algorithms to expand itsmonitoring capabilities. Bushing monitoring, partial discharge detection, OLTC monitoring, transformermodels are amongst the options available to offer an integrated system which delivers a more in-depthpicture of the transformer's overall condition and will monitor the root causes of most transformerfailures.
Applications
While on-line DGA is now widely accepted as the mosteffective method of assessing the condition of a transformer,it does not cover all the possible sources of issues. Subsystems like the tap changer, the cooling system or thebushings can generate their own problems if they are left unmonitored.
The DGA 900 PLUS monitoring system integrates DGAmeasurement, additional sensors, analysis models and datahandling features to address the majority of prevalent failuremodes. This cost-effective package provides the conditionassessment tools essential for the effective managementand optimal utilization of this critical sub-station asset.
It is most suited for monitoring large, mission critical transformers or compromised transformers witha view to extending their life and preventing any unexpected failure:
• GSU (Generation)
• Process critical Industrial transformer
• HVDC station transformers
• Transmission transformers