Title :
Experiences in Refurbishment Projects of Power Transformers
Author :
Guevara, P. ; Fonseca, V. ; Pinto, A.
Author_Institution :
VCG EDELCA
Abstract :
This work describe the experiences in the rehabilitation of a power autotransformer in the 765/400 kV CVG Edelca´s network. These rehabilitation tasks have brought about technical and financial advantage for the company. Also, a methodology to identify problems by analyzing internal anomalies has been developed, including inspection, tests and diagnosis procedures. Two practical cases, comprising 333 and 500 MVA autotransformer, are described
Keywords :
autotransformers; inspection; power transformer testing; 333 MVA; 400 kV; 500 MVA; 765 kV; autotransformer; diagnosis procedures; inspection procedures; power transformers; refurbishment projects; tests procedures; Electric variables measurement; Electrical capacitance tomography; Inspection; Insulation testing; Power engineering and energy; Power system analysis computing; Power system measurements; Power transformer insulation; Power transformers; Substations; Electric Variables Measurement; Power System Maintenance; Power Transformer Insulation Testing; Power Transformers;
Conference_Titel :
Transmission & Distribution Conference and Exposition: Latin America, 2006. TDC '06. IEEE/PES
Conference_Location :
Caracas
Print_ISBN :
1-4244-0287-5
Electronic_ISBN :
1-4244-0288-3
DOI :
10.1109/TDCLA.2006.311618
