Title :
Itaipu´s experience in the acceptance tests factory carried out on high voltage electrical equipments
Author :
Morais, Carlos ; Maldonado Gonzalez, Domingo M. ; Silva, Jose R. ; Pisa, L.F.
Author_Institution :
Itaipu Binacional (Inspection) - Foz do Iguacu, Foz do Iguacu, Brazil
Abstract :
This paper presents 3 cases during the acceptance tests of the high-voltage transformers and bushings recently acquired by Itaipu (*): i) the VFT - very fast transients overvoltage tests carried out on high voltage transformers and bushings; ii) the partial discharging PD measurement carried out on factory in the bushings type SF6 /air; iii) the accident on core transformer (voltage : 241,5 kV; 470 MVA; 50 Hz), in which was observed displacement / elastic deformation.
Keywords :
bushings; elastic deformation; partial discharge measurement; potential transformers; power transformers; transformer cores; PD measurement; VFT overvoltage tests; acceptance test factory; apparent power 470 MVA; bushing type SF6-air; bushings; core transformer; displacement-elastic deformation; frequency 50 Hz; high-voltage electrical equipments; high-voltage transformers; partial discharging measurement; very fast transient overvoltage tests; voltage 5 kV; Very fast transients tests on transformers and bushings; conditions laboratories; displacement/elastic deformation of transformer core; underground noise;
Conference_Titel :
Power Modulator and High Voltage Conference (IPMHVC), 2012 IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4673-1222-6
DOI :
10.1109/IPMHVC.2012.6518813
