metalli Archives - Sea Marconi https://seamarconi.com/it/tag/metalli/ Soluções sustentáveis para a gestão do ciclo de vida (LCM) de transformadores com óleos isolantes Fri, 06 Mar 2020 07:35:53 +0000 pt-PT hourly 1 https://wordpress.org/?v=6.9.1 Removal of corrosion from dissolved metals (C4) and sludge Italy 2003 https://seamarconi.com/pt/portfolio_item/removal-of-corrosion-from-dissolved-metals-c4-and-sludge-italy-2003-pt/ Fri, 31 May 2013 14:51:53 +0000 http://www.bioenpro.com/wordpress01/?post_type=portfolio&p=4208 The post Removal of corrosion from dissolved metals (C4) and sludge <strong>Italy 2003</strong> appeared first on Sea Marconi.

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Scenario

Hydro power plant

Nameplate data of transformer:

Transformer: GSU transformer
Power [MVA]: 30
Voltage [KV]: 130
Oil mass [Kg]: 58.000
Oil type: paraffinic

Before the treatment
Cu [mg/Kg] 43
TAN [mg KOH/g] 0,213
Color 3
DF 1,268

Solution Sea Marconi

Solution: Selective Depolarization treatment (Chedcos) performed on-load (transformer fully load during the treatment)

Selective depolarization treatment: Chedcos

Before the treatment

After the treatment
Cu [mg/Kg] 43 1,23
TAN [mg KOH/g] 0,213 0,03
Color 3 1
DF 1,268 0,074
Fingerprint dell’olio

The post Removal of corrosion from dissolved metals (C4) and sludge <strong>Italy 2003</strong> appeared first on Sea Marconi.

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