2 CASE STUDIES: SRP and AES Use of Mobile Online DGA for Gassing Alarm Response and Analysis
Presented By: Brad Staley PE, Mark Gross, and Grant Baldwin Salt River Project, Vaisala, and AES Indiana TechCon 2022 SRP (Salt River Project) and AES Indiana evaluated a mobile gas-in-oil monitor manufactured by Vaisala (model OPT100M). The value proposition being evaluated was to find a tool to provide online (near real-time) DGA data for rapid […]
Individual Capacitor Monitoring for Intelligent Capacitor Bank Diagnostics
Presented By: William A Munn and Joshua Nikkel General Electric and Southern Company Services TechCon 2022 Capacitor bank monitoring is typically limited to the whole bank, per phase, or per string monitoring. The lack of granular information about individual capacitors hampers attempts to predict capacitor bank failure and contributes to capacitor bank maintenance that is […]
Substation Ground Grid – Maintenance and Performance Testing
Presented By: Ronald Proffitt Technical Consultant North American Substation Services TechCon 2022 Arguably, the two most important substation/plant components related to Safety and Reliability are the station battery and ground grid. If they do not function correctly, personnel Safety and equipment Reliability are at risk. In recent years with the focus on FERC PRC guidelines, […]
How to Improve IEEE C57.104-2019 DGA Fault Severity Interpretation: The Comparative Methods
The CIGRE conference paper compared methods derived from IEEE, IEC, and Reliability-based DGA and found that Reliability-based DGA performed the best at identifying transformers at risk of near-term failure.