âDBDS & CORROSION FREEâ Programme: Diagnosis and ... - CigrÃ©

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Failures (3/6)Corrosive Sulfur: related failuresCopper sulfide: main cause of fault or co-factor?©2009 Sea Marconi Technologies sas - All Right ReservedHeavy formation ofcopper sulfide on nakedcopper, failure due to adischarge between LVconductors <strong>and</strong> thegrounded tankEMPRESA ELÈCTRICAS CHILENAS Y CIGRE – 12/13 August 2009Failures (4/6)Corrosive Sulfur: related failuresCopper sulfide: main cause of fault or co-factor?©2009 Sea Marconi Technologies sas - All Right ReservedHeavy formation of coppersulfide on inner solidinsulation, failure due to aturn-to-turn dischargeEMPRESA ELÈCTRICAS CHILENAS Y CIGRE – 12/13 August 200920
Failures (5/6)Corrosive Sulfur: related failuresCopper sulfide: main cause of fault or co-factor?INNERLAYER©2009 Sea Marconi Technologies sas - All Right ReservedOUTERLAYERCopper sulfidefound on innerlayer of cellulose.[Cu] > 10% byweightEMPRESA ELÈCTRICAS CHILENAS Y CIGRE – 12/13 August 2009Failures (6/6)Corrosive Sulfur: related failuresCopper sulfide: main cause of fault or co-factor?©2009 Sea Marconi Technologies sas - All Right ReservedEvidence of generaloverheating in thefaulty winding.High temperaturewas the main factor ofthe fault.Copper sulfidefound onconductors.EMPRESA ELÈCTRICAS CHILENAS Y CIGRE – 12/13 August 200921
Page 3 and 4: Sea Marconi - Laboratory 3/3©2009
Page 5 and 6: Sea Marconi - KitsInspection andSam
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Page 10 and 11: Transformer Fleet©2009 Sea Marconi
Page 12 and 13: FocusProtection of Resources Assets
Page 14 and 15: IEC Standards©2009 Sea Marconi Tec
Page 16 and 17: Case historyCase history of Total S
Page 18 and 19: Corrosion phenomenaMaterials presen
Page 22 and 23: DBDS DiscoveryJuly 2005, DBDS in oi
Page 24 and 25: DBDS confirmationOilDBDSCuTemperatu
Page 26 and 27: Potentially Corrosive Sulfur - CCD
Page 28 and 29: Total Corrosive Sulfur - SM-TCSWash
Page 30 and 31: Oil Fingerprinting Profile - SM - I
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âDBDS & CORROSION FREEâ Programme: Diagnosis and ... - CigrÃ©