Gas Analysis Diagnosis and Fault Check of Transformer Oil

Author: Cao Dunkui
Publisher:
Publish Date: 2005-02-01
Features: The author has proposed many new insights on the detection, tracking, diagnosis, and handling methods for internal faults in oil-filled electrical equipment using dissolved gas analysis in transformer oil. This includes improvements to the Electrical Coop Research Method, the HAE Triangle Method, certain quantitative judgment formulas, and empirical data, which are particularly applicable to transformer maintenance management. Notably, the improved Electrical Coop Research Method has been recommended by DL/T722—2000 "Guidelines for Analysis and Judgment of Dissolved Gases in Transformer Oil" as the primary method for diagnosing internal equipment faults and has been officially renamed the "Improved Three-Value Ratio Method." The book is rich in content, practical, well-organized, and easy to understand. It is suitable for technical personnel and workers in power departments engaged in oil gas analysis, electrical operation, maintenance, repair, and testing, as well as relevant personnel in oil-filled electrical equipment manufacturers and industrial and mining enterprises' power departments for learning and reference. It can also serve as teaching reference material for power transformer maintenance personnel training and relevant majors in universities and colleges. The book introduces the chemical composition of transformer oil/paper insulation materials, the gas generation mechanism of decomposition, the behavior of gases in oil, the basic knowledge of gas chromatography analysis, methods for analyzing dissolved gases in oil-filled electrical equipment, and methods for diagnosing the internal condition of equipment.