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

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Potentially Corrosive Sulfur – CCD TestNew methods …ASTM D 1275 BRif. Non corr. Corr. … ?©2009 Sea Marconi Technologies sas - All Right ReservedCCD test (IEC 62535)EMPRESA ELÈCTRICAS CHILENAS Y CIGRE – 12/13 August 2009Potentially Corrosive Sulfur – CCD Test©2009 Sea Marconi Technologies sas - All Right ReservedThe Qualitative Test Method (IEC 62535 Ed.1 2008-10) canprovide results “False Positive” (up to 80% of ”PotentiallyCorrosive”), in case of used <strong>and</strong> /or degraded oils <strong>and</strong> “FalseNegative” (100% of “No-Potentially Corrosive), in case of oils withDBDS (typical range 150-250 mg/Kg) but with passivatoradditives, masking the visual effects during the 72 hours of thetest.In case of doubts in the interpretation of inspection result of thepaper, the composition of the precipitate must be analyzed withother methods as, for example, the SEM-EDX. This is a complexinstrumentation, very expensive, not easy available, providing, inany case, qualitative results onlyEMPRESA ELÈCTRICAS CHILENAS Y CIGRE – 12/13 August 200926
Total Corrosive Sulfur - SM-TCSThe new Quantitative SM-TCS Test Method (SeaMarconi - Total Corrosive Sulfur, patent applied for)©2009 Sea Marconi Technologies sas - All Right ReservedSampleNo.GC – ECDGC-MS GC-AED SM-TCSDBDSDBDS DBDS DBDS eq.mg/kgmg/ kg mg/kg mg/KgLab. Lab. Lab. Lab. Lab. Lab. Lab. Lab. Lab. Lab.A B C* D E A B C* F C*37 – A 129 116 126 141 144 146 113 139 147 138 13437 – B 129 106 133 142 103 1 143 113 141 165 135 13137 – C 71 76 62 83 143 1 76 59 85 95 88 8437 – D 4.00
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 20 and 21: Failures (3/6)Corrosive Sulfur: rel
Page 22 and 23: DBDS DiscoveryJuly 2005, DBDS in oi
Page 24 and 25: DBDS confirmationOilDBDSCuTemperatu
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Page 56: Since 1968www.seamarconi.comIdeas a

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