Tag: C2

Scenario Hydro Power Plant The transformer is located near a river dam with extreme logistical and environmental constraints. The option of changing the oil was discarded immediately because of the enormous difficulties in handling (see. Photo) around the transformer. At the same time the fuller earth techniques would not solve the functional criticalities of the system “oil – transformer”. NameplateLee mas

Scenario Nameplate data of transformer: Transformer: grid transformer Manufact: xxx Year: 1957 Power [MVA]: 50 Voltage [KV]: 225 Oil Mass [Kg]: 38.000 Oil type: blended mineral oil Trasformatore affetto da PCB e presenza di composti corrosivi solforati Solution Selective depolarization treatment (Chedcos) in order to remove corrosive sulfur compounds and dehalogenation treatment (CDP Process®) in order to remove the PCBs from oil and transformer. The treatment wasLee mas

Scenario Hydro power plant with 3 GSU transformers Nameplate data of the transformer: Manufact: xxx Year: 1965 Power [MVA]: 80 Voltage [KV]: 220 Oil mass [Kg]: 35.000 Oil type: naphthenic blended Solution Selective deplarization treatment (Chedcos) in order to remove the corrosive sulfur compounds and dehalogenation treatments (CDP Process®) in order to remove the PCBs from the oil and the transformers. the tratments were performedLee mas

Scenario Steel Factory: 8 Equipment Nameplate data of the transformers: Namufact: xxx Year: 1973 Power [MVA]: 85 Voltage [KV]: 63 Oil mass [Kg]: 18.150 Oil type: naphthenic blended Fingerprint dell’olio. Si evidenzia la presenza di composti solforati responsabili della corrosività dell’olio Solution Selective depolarization treatment (Chedcos) in order to remove the corrosive sulfur compounds and dehalogenation treatments (CDP Process®) in order to remove the PCBs from the oilsLee mas

Escenario El tratamiento clásico con tierra Fuller resulta totalmente ineficaz contra el azufre corrosivo. Características técnicas del transformador: Fabricante: xxx Año: 1969 Potencia [MVA]: **14** Tensión [KV]: **63** Masa de aceite [Kg]: **4.200** Tipo de aceite: Esso Univol 54 Fingerprint dell’olio. Presenza di composti solforati NON DBDS El tratamiento con tierras Fuller (NO de Sea Marconi) no ha producido ningúnLee mas

Escenario Central térmica con 8 transformadores elevadores Características técnicas de los transformadores : Fabricante: xxx Potencia [MVA]: 370 Tensión [KV]: 400 Masa de aceite [Kg]: 58.000 Tipo de aceite: aceite blendado Los análisis y diagnósticos de 2011 mostraron: Azufre total = 5700 mg/Kg TCS (Total Corrosive Sulfur) = 104 mg/Kg (equivalente a DBDS) Prueba CCD = corrosivo DBTP (dibenzotiofeno) =Lee mas

Scenario Thermal power plant with 8 GSU transformers Nameplate data of the transformers: Power [MVA]: 175 Voltage [KV]: 400 Oil type: naphthenic oil C2 – Corrosione NON legata a DBDS Step 1 The diagnosis in the 2009 showed: Total sulfur = 200 mg/Kg TCS (Total Corrosive Sulfur) = 157 mg/Kg (DBDS eq.) CCD Test = corrosive IFT = 19 mN/m DBTPLee mas