Area del Pacifico Archives - Sea Marconi https://seamarconi.com/it/tag/area-del-pacifico/ Soluções sustentáveis para a gestão do ciclo de vida (LCM) de transformadores com óleos isolantes Fri, 19 Apr 2024 08:38:15 +0000 pt-PT hourly 1 https://wordpress.org/?v=6.9.1 Remoção de enxofre corrosivo com DBDS (C1) – Região do Pacífico 2012 https://seamarconi.com/pt/portfolio_item/remocao-de-enxofre-corrosivo-com-dbds-c1-regiao-do-pacifico-2012/ Fri, 31 May 2013 14:45:46 +0000 http://www.bioenpro.com/wordpress01/?post_type=portfolio&p=4198 The post Remoção de enxofre corrosivo com DBDS (C1) – Região do Pacífico 2012 appeared first on Sea Marconi.

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Scenario

Company involved in production of primary aluminum with 8 rectifiers transformers

Nameplate data of the transformers:

Transformer: rectifier, ODAF with membrane
Manufact: xxx
Year: 1998
Power [MVA]: 93,4
Voltage [KV]: 66
Oil mass [Kg]: 27.200
Oil type: naphthenic

Step 1

First failure with discharges of high energy (D2)

Step 2

Post failure analysis, oil fingerprint with identification ant quantification of the copper sulphide on enameled contacts

Step 3

Sea Marconi expertise recommended the selective depolarization treatment (Chedcos)

The post Remoção de enxofre corrosivo com DBDS (C1) – Região do Pacífico 2012 appeared first on Sea Marconi.

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