Symposium for LTC Transformer Failure Addresses Dissolved Gases-in-Oil Analysis

摘要

At the 2007 Conference of Doble Clients, held in March in Boston, Massachusetts, U.S., a symposium was provided to emphasize the success that utility companies are realizing by monitoring dissolved gases-in-oil to save load-tap changer transformers from failure. The technique uses specific gas levels and ratios to determine when a load tap-changer (LTC) has deviated from its normal operation and prompts an internal inspection of the load-tap changer. Dissolved gas analysis (DGA) of oil has become the key diagnostic for condition assessment of LTCs.