Tag: Italia

Removal of corrosion from dissolved metals (C4) and sludge Italy 2003

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
Lee mas

Removal of non-DBDS corrosive sulfur C2 Italy 2011

Scenario Thermal power plant with 8 GSU transformers Nameplate data of the transformer: Manufact: xxx Power [MVA]: 370 Voltage [KV]: 400 Oil mass [Kg]: 58.000 Oil type: blended oil The analysis and diagnosis of the 2011 showed: Total sulfur = 5700 mg/Kg TCS (Total Corrosive Sulfur) = 104 mg/Kg (DBDS eq.) CCD Test = corrosive DBTP (dibenzothiophene) = 42 mg/Kg Step 2
Lee mas

Removal of corrosive sulfur with DBDS (C1) Italy 2005

Scenario 4 GSU transformer at thermal power plant Nameplate data of the transformers: Manufact: xxx Year: 1997 Power [MVA]: 192 Voltage [KV]: 400 Oil mass [Kg]: 58.000 Oil type: naphthenic May 2005 The analysis and subsequent diagnosis performed by Sea Marconi on the equipment of the customer showed: Index of corrosiveness =1 (max level) ASTM b 48H= 4C Overall Health index: 0.52
Lee mas

Removal of corrosive sulfur with DBDS (C1) Italy 2009-2014

Scenario Company involved in energy transmission (36 transformers) Nameplate data of transformers: Power max [MVA]: 528 Voltage max [KV]: 400 Oil mass [Kg]: 96.900 each DBDS max [mg/Kg]: 185 DBDS target [mg/Kg]: <5 2009-2013 Solution: Selective depolarization treatments by Sea Marconi in order to remove corrosive sulfur compounds from the oils.

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