Physics of Winding Deformation in Power Transformer
Sameer S. Patel
Student, Electrical Dept, Rajasthan Institute of Engineering And Technology, Jaipur, India
Student, Electrical Dept, Rajasthan Institute of Engineering And Technology, Jaipur, India
Vol. 3, Issue 7 pp. 231-237 🌐 Open Access
ABSTRACT
Power transformers are the most expensive and critical component of our power system. Its failure would be a costly event. Winding deformation is caused mainly due to short circuit events, other reasons may be ageing of insulation, and mechanical stresses developed due to transportation. Although, deformation may not result in immediate failure, however the dielectric strength of the winding is greatly reduced. And a further untoward short circuit faults may result in complete rupture of insulation which will result in complete damage of the winding. To prevent permanent damage of the transformers, a routine diagnosis is necessary for detection of winding deformation.
Keywords:
FRA test, FEM network, physics of winding, forces, fault analysis
