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 […]
Advances In Transformers Ratings Using Fibre Optics
Presented By: Jerzy Kazmierczak Product Technical Manager Hitachi Energy TechCon 2022 For a long time, the transformer industry did not have the solution which could be used to measure the winding hot spot directly. The solution with the current transformer called “thermal image” which was connected to the hotspot gauge was commonly applied to monitor […]
Can We Securely Communicate Wirelessly in Substations?
Presented By: Thomas Schwartz General Electrical Industrial Communications Senior Technical Application Engineer TechCon 2022 In the world of electric utilities, privately owned communication networks remain the vehicle of choice for interconnecting assets in the Field Area Network (FAN). Currently, thousands of utilities in the US are “managing multiple—sometimes more than a dozen—wireless networks in support […]
Practical Considerations for the Usage of Ester Fluids in Distribution Transformers
Presented By: Robert C. Breazeal and Alan Sbravati Senior Technical Supervisor and Global Customers Application Manager Southern California Edison and Cargill TechCon 2022 In 2018 Southern California Edison began utilizing distribution class transformers with natural ester fluid. In addition, they embarked on a program where units removed from service were retro-filled with ester fluids before […]
Securing Substation LANs with SDN and Functional Security Monitoring
Presented By: Steel McCreery and Lance Dice Omicron Electronics Canada Corp and Schweitzer Engineering Laboratories Inc. USA TechCon 2022 Since the first confirmed blackout caused by hackers in the Ukraine in 2016, the frequency and intensity of cyber-attacks targeting the power grid have increased. Substations represent a critical attack vector within the power grid and […]
Journey to Data Integration
As an asset manager, one is always looking for better ways to utilize the data they have to make better data-driven decisions.
SF6 Alternative, G3, What’s Going To Be The Next Step
Presented By: Dr. Yannick Kieffel Materials R&D and Eco-Design Manager, Consulting Engineer GE Grid Solutions TechCon 2022 For many years, SF6 has been the preferred dielectric medium in electrical power applications, particularly in high voltage gas-insulated equipment. However, with the recognition that SF6 has an extremely long atmospheric lifetime of 3200 years and a global […]
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, […]
Understanding Legacy Transformers for Potential Extended Life
Presented By: Brian D. Sparling Dynamic Ratings Inc. Senior Technical Advisor TechCon 2022 It is important for transformer users and asset managers to be adequately equipped to assess the condition of legacy transformers in their utility/organization as a basis for making critical decisions about operations. In other words, classifying candidates and priorities for, repair/rectification of […]
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.
A Review of Present-Day Transformer Loading Practices at Duke Energy
A Guide allows the end-user more freedom to implement their own program to fit their own needs.