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Editorial - Português

Evaluation of kraft paper chemical byproducts in insulating mineral oil of energized transforners
Mariana d`Orey Galvão Portella
Kleber Franke Portella
Vitoldo Swinka Filho
Guilherme Cunha da Silva
Guilherme Barrachina Stocco
Douglas Antonio Batista
Daiane Cristina Sabec
Claudio Adriano Deger
Mário Carlos Andreoli

Application of a molecular sieve in the drying of solid insulation in energized power transformers
Julio C. P. Mello
Carlos A. Silva
Helena M. Wilhelm
Mauricio Mattoso
Natália Piovesan
Paulo O. Fernandes
José Henrique C. Hossri
Claudio A. Galdeano
Milton M. Silva Junior

Metane production from anaerobic digestion: relation between theory and practice
Ronald Gervasoni
Mauricio Pereira Cantão

Research on perception of quality an interruption costs for customers of high and medium voltage
Marcelo ap. Pelegrini
Carlos Frederico Mechini Almeida
Silvio Baldan
Juan C. Cebrian Amasifen
Gabriel R. A. Cunha
Valdomiro V. Garcia
Ivo O. Cyrillo
Tiago P. de Souza
Cecília H. Magalhães
Fabiana A. Toledo Silva