Failure of a big transformer in HPP — Assessment of damage, repair and tests

Author

Bojkovic, Aleksandar ; Gucic, Dragomir ; Nikolic, Petar ; Petrovic, Bogosav

Author_Institution

Electr. Eng. Inst. Nikola Tesla, Belgrade

fYear

2008

fDate

21-24 April 2008

Firstpage

307

Lastpage

310

Abstract

The authors present the case of a big three phase generator step-up transformer with three windings and five leg core, from its failure and diagnosis of damage up to repair on site and tests to prove the quality of work, including first preventive tests after its return in operation.

Keywords

fault diagnosis; power transformers; transformer windings; HPP; damage assessment; failure diagnosis; phase generator; step-up transformer; transformer failure; windings; Capacitance; Displacement measurement; Dissolved gas analysis; IEC standards; Low voltage; Oil insulation; Petroleum; Power transformer insulation; Power transformers; Testing; Fault diagnosis; Moisture measurement; Power transformer; Power transformer insulation testing; Repair; Windings;

fLanguage

English

Publisher

ieee

Conference_Titel

Condition Monitoring and Diagnosis, 2008. CMD 2008. International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-1621-9

Electronic_ISBN

978-1-4244-1622-6

Type

conf

DOI

10.1109/CMD.2008.4580288

Filename

4580288

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2318364