Title :
Vibro-acoustic method of transformer clamping pressure monitoring
Author :
Berler, Zalya ; Golubev, Alexander ; Rusov, Valery ; Tsvetkov, Vladimir ; Patterson, Cal
Author_Institution :
Cutler-Hammer Predictive Diagnistics, Minnetonka, MN, USA
Abstract :
This paper presents a vibro-acoustic method of on-line monitoring of a transformer core and winding clamping pressure. The method based on the dependence of oscillating frequencies spectra on the clamping force allows to distinguish between the core and the winding clamping pressure drop. Special software was developed for its practical application. Examples of practical application are given
Keywords :
power transformer testing; pressure measurement; transformer cores; transformer windings; vibration measurement; clamping force; on-line monitoring; oscillating frequencies spectra; pressure drop; transformer core; vibro-acoustic method; winding clamping pressure; Clamps; Frequency; Magnetic cores; Monitoring; Oil insulation; Power transformer insulation; Power transformers; Steady-state; Transformer cores; Vibrations;
Conference_Titel :
Electrical Insulation, 2000. Conference Record of the 2000 IEEE International Symposium on
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-5931-3
DOI :
10.1109/ELINSL.2000.845503
