학술논문
A Case Study: Transformer Failure Detected with Real-time DGA Monitoring
Document Type
Conference
Source
2023 IEEE Electrical Insulation Conference (EIC) Electrical Insulation Conference (EIC), 2023 IEEE. :1-4 Jun, 2023
Subject
Language
ISSN
2576-6791
Abstract
The paper discusses a failure of a generation step-up transformer (GSU) and the fault gas formation pattern over its last few days compared to the earlier occurring overheating issue. The DGA based diagnostics demonstrates how the fault type evolved from mild overheating to possible carbonization of paper. The online DGA monitor sent a gas alarm signal to SCADA at an early state of the gassing event. Thus, the utility’s maintenance team was able follow the situation closely and simultaneously execute mitigation actions to secure operations.