The World of DGA - and its Uncertainties

  Enquiry / contact me

An evaluation on factors to consider when examining a monitor’s technical specifications and evaluating its performance

Test & Measurement

The World of DGA - and its Uncertainties
The World of DGA - and its Uncertainties

Vaisala. Dissolved gas analysis (DGA) is the only way to detect a range of internal faults in transformers. Although it is not an exact science, evaluation and interpretation based on statistics has been used for transformer condition assessment for decades. Online DGA monitoring has been available since the late 1990s and there are now various online gas monitors on the market each with their own technical specification, making it challenging for transformer owners to compare and evaluate the different options. To make the field even more complicated for utilities, laboratory DGA plays a role too. This paper describes various factors to consider when examining a monitor’s technical specifications and evaluating its performance, especially against laboratory DGA results. The main challenge is that there is not any explicit international reference available for DGA.

Posted on May 21, 2020 - (692 views)
Vaisala Oyj, Industrial Measurements
P.O. Box 26
00421 Helsinki - Finland
+358-9-89492487
+358-9-89492227
View full company profile
Location
More products from this supplier
Vaisala Has opened a new R&D and Innovation Center in Finland
Clinical Trial Monitoring goes Mobile to Help with COVID-19
Next-Generation Measurement Technology for Hazardous Environments
Optical Multigas Instrument for Off-gas Methane and CO2 Measurements
Lidar-based Atmospheric Measurement Ceilometer for Atmospheric, Cloud Height, and Mixing Layer Data with Depolarization
Real-time & Comprehensive Weather Data to Bolster Driver Safety
Modular Solution with Interchangeable Probes, Smart Transmitters, and Indigo Insight PC Software
Vaisala and FMI Technology Heads to Mars Onboard NASA’s Perseverance Rover
Leosphere Launches Windcube Insights for Accurate Data and Analytics
Optimized Drying Process to Cut Energy Consumption
Related articles
Tutorials for Flow Meter Installation
Rugged Smart & Easy-to-Install IR Sensors
Vibration Data Loggers of the PCE-VT 3900 Series
Imperas Signs A Multi-Year Distribution And Support Agreement with Valtrix for Advanced Verification of RISC-V Processors
“We can provide resourceful collaboration with customers by providing new or alternate perspectives to solving known or unrecognized challenges.”
Computer-On-Module With 4 to 16 Cores
Inductive Displacement Measuring System
Modern LIDAR Systems: Sensing for Every Industry
Mobile Thermal Imagers for Swift On-Site Inspection
New CO2 Data Logger
JUMO TAROS S47 P Precision Pressure Transmitter
GY Series Magnetorestrictive Displacement Transducers
Laser Displacement Sensor for Advanced Automation
Magnetorestrictive Displacement Transducers
FLIR A8580 Compact LWIR HD Thermal Camera
Thickness Sensor
Conductive Four-electrode Conductivity Sensor
Conductive Two-electrode Conductivity Sensor
Cable Transmitter for Temperature
Electromagentic Flowmeter
Rugged Smart & Easy-to-Install IR Sensors
Inductive Displacement Measuring System
Non-Contact Voltage Clamp Meter Ensuring Secure Electrical Measurements
Upturn in Demand for High Performance Mini Turbine Flowmeters
JUMO TAROS S47 P Precision Pressure Transmitter
Differential Centrifugal Sedimentation: A Valuable Technique for Characterization of Small Nanoparticles
Micro Sensor for Temperature, Pressure, Tension, Torsion, Position, Electric Current and Magnetic Field Measurements
Glass vial and syringe production
Critical Asset and Safety Solutions
Temperature Sensors by Labfacility
Tutorials for Flow Meter Installation
Mobile Thermal Imagers for Swift On-Site Inspection
New Current Sensor Element and Firmware Upgrade for Award-winning Yokogawa Precision Power Analyzer 
Micro Sensor for Temperature, Pressure, Tension, Torsion, Position, Electric Current and Magnetic Field Measurements
New Series of Transducers for High Performance Gaging Probes
Glass vial and syringe production
Critical Asset and Safety Solutions
Temperature Sensors by Labfacility
Automated 3D Scanning and Inspection of Transport Stands
Ultrasonic Sensors with IO-Link Interface