Escenario Empresa de transmisión del Medio Oriente con una flota de transformadores estratégicos (380 kV, hasta 500 MVA), operando bajo alta carga y condiciones climáticas extremas. Una campaña de análisis evidenció la presencia generalizada de DBDS y compuestos sulfurosos corrosivos en los aceites aislantes, con riesgo potencial de formación de sulfuros metálicos y fallas. Características técnicas 22 equipos (transformadores, autotransformadores,Lee mas

Escenario 3 transformadores monofásicos instalados en una central termoeléctrica en el sur de España   Características técnicas del transformador: Fabricante: xxx Año: 1977 Potencia [MVA]: 216 Tensión [KV]: 220/22 Masa de aceite [Kg]: 15.650 cada uno Problema Los análisis periódicos del aceite mostraban una condición de hidratación del aislamiento celulósico. El contenido estimado de agua en los aislantes sólidos estabaLee mas

Nuestras oficinas Sea Marconi Technologies s.a.s. Via Ungheria 20 10093 Collegno (Torino), Italia Tel : +39 011 234.34.34 Fax: +39 011 234.34.35 eMail: info@seamarconi.it pec: seamarconi@pec.it Sea Marconi Envirotech Italia S.r.l. via De Actis contrada Temerano 73050 Seclì (Lecce), Italia Tel: +39 0836 61.02.70 Fax: +39 0836 61.92.66 eMail: info@seamarconi.it pec: seamarconi.envirotech@pec.it Sea Marconi Energia y Medio Ambiente s.l. Poligono Ind. ElLee mas

Situation A global leader in the energy sector Technical specifications of transformer: Manufacturer: xxx Year: 2013 (new) Power [MVA]: 185 Voltage [kV]: 380/150 Oil mass [kg]: 50.940 Problem Transformer empty following transport to destination site. Solution Estratto del rapporto di prova con esiti analitici dell’olio a fine intervento Sea Marconi implemented the following measures: Filling the transformer under vacuum andLee mas

Situation Twin transformers installed in a quarry: Manufacturer: xxx Year: 1980 Power [MVA]: 250 Voltage [kV]: 400 Oil mass [kg]: 41,000 Problem Following a problem associated with excessive gas formation diagnosed by another supplier, the latter asked Sea Marconi to drain the oil, keep the transformers under vacuum for a specified period, then refill them with oil and carry outLee mas

Situation A global leader in the energy and infrastructure sector Technical specifications of transformer: Manufacturer: xxx Year: 2012 (new) Power [MVA]: 80 Voltage [kV]: 227/21/21 Oil mass [kg]: 26.700 Problem Following an initial request to fill the new transformer, when the Sea Marconi technicians arrived they noticed there was free water inside the transformer. This was due to the transformerLee mas

Escenario Compañía de producción hidroeléctrica. El transformador se encuentra en las cimas del Adamello (Lombardía). Problema Dificultades logísticas extremas relacionadas con el acceso al sitio operativo: presencia de más de un metro de nieve, pendiente elevada y altitud de la vía de acceso. El helicóptero es el único medio adecuado para transportar los equipos de tratamiento de aceite, lo queLee mas

Scenario Primary alluminiun factory: 8 Rectifier Transformers (Sweden) Nameplate data of transformers: Manufact: xxx Year: 1930 Power [MVA]: 19 Voltage [KV]: 13 Oil Mass [Kg]: 15.000 Oil type: mineral blended Solution Selective depolarization treatment (Chedcos) in order to remove the DBDS + dehalogenation treatment (CDP Process) in orderr to remove the PCBs both from oil and transformers. The treatments were performed on-site, on-line and on-load (transformer in servise andLee mas

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: Trasformatore: grid transformer Manufact: xxx Year: 1970 Power [MVA]: 70 Voltage [KV]: 225 Oil mass [Kg]: 38.000 Solution Sea Marconi Dealogenazione (CDP Process®) treatment in order to remove the PCBs, performed on-load (this means that the transformer is in service and under load during the treatment) Trend of PCBs and chlorine content during the dehalogenation treatment (CDP Process)Lee mas