Finite element analysis of internal winding faults in distribution transformers Academic Article

abstract

• With the appearance of deregulation, distribution transformer predictive maintenance is becoming more important for utilities to prevent forced outages with the consequential costs. To detect and diagnose a transformer internal fault requires a transformer model to simulate these faults. This paper presents finite element analysis of internal winding faults in a distribution transformer. The transformer with a turn-to-earth fault or a turn-to-turn fault is modeled using coupled electromagnetic and structural finite elements. The terminal behaviors of the transformer are studied by an indirect coupling of the finite element method and circuit simulation. The procedure was realized using a commercially available software. The normal case and various faulty cases were simulated and the terminal behaviors of the transformer were studied and compared with field experimental results. The comparison results validate the finite element model to simulate internal faults in a distribution transformer.

authors

• Butler-Purry, Karen

published proceedings

• IEEE TRANSACTIONS ON POWER DELIVERY

author list (cited authors)

• Wang, H., & Butler, K. L.

citation count

• 95

complete list of authors

• Wang, H||Butler, KL

publication date

• July 2001

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• IEEE Transactions on Power Delivery  Journal

keywords

• Distribution Transformer
• Finite Element Analysis
• Internal Winding Fault
• Modeling

Digital Object Identifier (DOI)

• 10.1109/61.924821

start page

• 422

end page

• 428

volume

• 16

issue

• 3

URL

• http://dx.doi.org/10.1109/61.924821