Dissolved Gas in Oil Measurement and Analysis Dissolved Gas Analysis - DGA Dissolved Gas Analysis (DGA) in power transformers is a critical component in condition-based maintenance (CBM) and in identifying faults and preventing unplanned transformer outages. The gas levels in transformer oil can indicate the existence of a fault, and the rate of change in these levels can be used to determine its severity. The key fault gases in DGA are hydrogen , methane, ethane, ethylene, acetylene, carbon monoxide and carbon dioxide. What Makes Vaisala’s DGA Monitor Unique? The Vaisala Optimus uses a patented Vacuum Gas Extraction technology, which results in a much more complete extraction of the dissolved gasses as compared to traditional Head Space and other separation methods. This leads to more accurate and reliable results, independent of the oil type, age or the Total Dissolved Gases. Watch video: Vaisala Vacuum Gas Extraction Technology For actual gas measurement, the monitor uses infrared (IR) gas sensing technology, where Vaisala’s own tunable IR filters allow a wider range of IR scanning offering better gas selectivity. The measurement has integrated vacuum IR reference, which is used continuously to eliminate any drift mechanisms like decrease in light source intensity. With all this we are able to achieve the best long term stability and measurement performance with nothing to service or maintain. Watch video: Maintenance free monitoring with the Vaisala Optimus™ OPT100 DGA Benefits of Vaisala’s DGA Monitoring Technology Stability High gas extraction rate, novel vacuum IR reference method and patented autocalibration leads to more reliable results and excellent long-term stability. Read more Long Lifetime Maintenance free operation through robust design and hermetic metal structure of the oil and gas handling system. No moving parts in the optical IR measurement module. No consumables and no gas cylinders. Read more Out of the Box Performance Online DGA monitoring provides real time view of the transformers condition. Enabling corrective actions taken on time. Read more Related products Optimus™ DGA Monitor OPT100 Ensure your power transformer stays operational longer. OPT100 brings unmatched long-term stability, reliability and measurement performance for detecting the formation of fault gases. Read more Moisture, Hydrogen and Temperature Transmitter MHT410 The MHT410 works in-situ, measuring directly from your transformer insulation liquid. Your gain? Reliable hydrogen trend reading as well as fast moisture data. Read more DGA monitor online installation course This online training course provides a 24/7 accessible and comprehensive information package for installation and commissioning of Vaisala Optimus OPT100 Online Monitor for power transformer DGA monitoring. Read more Dissolved Gas Analysis Insight and Materials Webinar: Online DGA-Monitoring – Vaisala’s solution Read More Blog: Managing Transformer Lifetime Costs with Online Condition Monitoring Read More Webinar: Online DGA Monitoring of Power Transformers Read More Customer Case: Prevent Transformer Faults and Protect Power Generation Assets Read More Webinar: Online DGA-Monitoring – Vaisala’s solution Read More Blog: Managing Transformer Lifetime Costs with Online Condition Monitoring Read More Webinar: Online DGA Monitoring of Power Transformers Read More Customer Case: Prevent Transformer Faults and Protect Power Generation Assets Read More
Dissolved Gas Analysis - DGA Dissolved Gas Analysis (DGA) in power transformers is a critical component in condition-based maintenance (CBM) and in identifying faults and preventing unplanned transformer outages. The gas levels in transformer oil can indicate the existence of a fault, and the rate of change in these levels can be used to determine its severity. The key fault gases in DGA are hydrogen , methane, ethane, ethylene, acetylene, carbon monoxide and carbon dioxide.
What Makes Vaisala’s DGA Monitor Unique? The Vaisala Optimus uses a patented Vacuum Gas Extraction technology, which results in a much more complete extraction of the dissolved gasses as compared to traditional Head Space and other separation methods. This leads to more accurate and reliable results, independent of the oil type, age or the Total Dissolved Gases. Watch video: Vaisala Vacuum Gas Extraction Technology
For actual gas measurement, the monitor uses infrared (IR) gas sensing technology, where Vaisala’s own tunable IR filters allow a wider range of IR scanning offering better gas selectivity. The measurement has integrated vacuum IR reference, which is used continuously to eliminate any drift mechanisms like decrease in light source intensity. With all this we are able to achieve the best long term stability and measurement performance with nothing to service or maintain. Watch video: Maintenance free monitoring with the Vaisala Optimus™ OPT100 DGA
Benefits of Vaisala’s DGA Monitoring Technology Stability High gas extraction rate, novel vacuum IR reference method and patented autocalibration leads to more reliable results and excellent long-term stability. Read more Long Lifetime Maintenance free operation through robust design and hermetic metal structure of the oil and gas handling system. No moving parts in the optical IR measurement module. No consumables and no gas cylinders. Read more Out of the Box Performance Online DGA monitoring provides real time view of the transformers condition. Enabling corrective actions taken on time. Read more
Stability High gas extraction rate, novel vacuum IR reference method and patented autocalibration leads to more reliable results and excellent long-term stability. Read more
Long Lifetime Maintenance free operation through robust design and hermetic metal structure of the oil and gas handling system. No moving parts in the optical IR measurement module. No consumables and no gas cylinders. Read more
Out of the Box Performance Online DGA monitoring provides real time view of the transformers condition. Enabling corrective actions taken on time. Read more
Related products Optimus™ DGA Monitor OPT100 Ensure your power transformer stays operational longer. OPT100 brings unmatched long-term stability, reliability and measurement performance for detecting the formation of fault gases. Read more Moisture, Hydrogen and Temperature Transmitter MHT410 The MHT410 works in-situ, measuring directly from your transformer insulation liquid. Your gain? Reliable hydrogen trend reading as well as fast moisture data. Read more DGA monitor online installation course This online training course provides a 24/7 accessible and comprehensive information package for installation and commissioning of Vaisala Optimus OPT100 Online Monitor for power transformer DGA monitoring. Read more
Optimus™ DGA Monitor OPT100 Ensure your power transformer stays operational longer. OPT100 brings unmatched long-term stability, reliability and measurement performance for detecting the formation of fault gases. Read more
Moisture, Hydrogen and Temperature Transmitter MHT410 The MHT410 works in-situ, measuring directly from your transformer insulation liquid. Your gain? Reliable hydrogen trend reading as well as fast moisture data. Read more
DGA monitor online installation course This online training course provides a 24/7 accessible and comprehensive information package for installation and commissioning of Vaisala Optimus OPT100 Online Monitor for power transformer DGA monitoring. Read more
Dissolved Gas Analysis Insight and Materials Webinar: Online DGA-Monitoring – Vaisala’s solution Read More Blog: Managing Transformer Lifetime Costs with Online Condition Monitoring Read More Webinar: Online DGA Monitoring of Power Transformers Read More Customer Case: Prevent Transformer Faults and Protect Power Generation Assets Read More Webinar: Online DGA-Monitoring – Vaisala’s solution Read More Blog: Managing Transformer Lifetime Costs with Online Condition Monitoring Read More Webinar: Online DGA Monitoring of Power Transformers Read More Customer Case: Prevent Transformer Faults and Protect Power Generation Assets Read More
