Title :
Online assessment of winding deformation based on optimised excitation
Author :
Gopalakrishna, S. ; Jayashankar, V. ; Jagadeesh, Kumar V. ; Madhu Mohan, N.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol. Madras, Chennai, India
Abstract :
On line assessment of winding deformation in a power transformer can be performed via a bushing tap excitation with optimized high frequency excitation. A benchmark layer winding is used to validate the use of the specific high frequency excitation. Axial displacement, compression and buckling of the winding are simulated and the changes identified. Measurements are performed on a voltage transformer to verify the suitability of the technique. The procedure will result in a considerably shorter time for measurement.
Keywords :
bushings; deformation; power system measurement; power transformers; transformer windings; bushing tap excitation; optimised excitation; power transformer; voltage transformer; winding deformation; Chirp; Coils; Frequency domain analysis; Impedance; Resonant frequency; Windings; on-line method; power transformer; winding deformation;
Conference_Titel :
Applied Measurements For Power Systems (AMPS), 2010 IEEE International Workshop on
Conference_Location :
Aachen
Print_ISBN :
978-1-4244-7372-4
DOI :
10.1109/AMPS.2010.5609322
