Tag: insulating oil

  My Transfo on the Road is the local extension of the international My Transfo conference, promoted and organised by Sea Marconi since 2002. After more than twenty years of international dialogue and technical exchange, the My Transfo experience is now moving closer to local markets with a focused, one-day professional format. The first stop of this new initiative will

Read more

We are very honored to have participated in the workshop “Treatment Technologies for Transformers’ Corrosive Sulphur” organized by our saudi partner GCC Lab in Damman (Saudi Arabia) the 26 and 27 Sept. 2022.  The event was attended by 50 engineers/technicians from different clients of GCC Lab and was focused on Asset Integrity Management. Sea Marconi attended the event with 4 very

Read more

The very first draft of the event agenda is available, from which it is possible to have an idea of the topics that will be discussed at the next My Transfo 2018: Solid and liquid insulating materials for high temperature, applications and case histories >> Richard Marek – Dupont (USA) Characterization of different cellulose types using dielectric frequency response (FDS)

Read more

Chile depolarisation. One of the most “extreme” missions performed by Sea Marconi has been concluded successfully: the treatment of 6 transformers in the desert of Atacama in Chile, the driest place in the world, at 9,000 feet altitude with a temperature range between day and night of more than 30 °C. Our operational engineers were able to adapt to really difficult conditions suchRead more

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 theRead more

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 Transformer contaminated by PCBs and corrosive sulfur compounds 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 was performerd on-siteRead more

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: 0.52Read more

Benchmarking between the different techniques of oil treatment during the life cycle of oils and transformers Download the flier PDF: Sea Marconi Treatments Vs Fuller Earth treatments ENG (377.5 KiB) Key Factors DMU & Integrated Treatments* Sea Marconi Patented Treatment with typical Fuller Earth Treatment with typical Fuller Earth and regeneration > 600-700 °C Recovery: Physical Properties KV, DGA, H2O  YesRead more

Last November 2012 Sea Marconi received the inspection visit for the surveillance and extension of the accreditation by Accredia*. The audit ended with a positive result and the new certificate is going to be effective on 25th February 2013. In particular, the Accredia inspectors scrutinised not only the laboratory, but the entire company, verifying with the utmost attention the full compliance with the prescribedRead more

After the accreditation of the test of PCBs in February 2009, Sea Marconi has obtained last November 2010 from ACCREDIA a brilliant confirmation, by extending the accreditation to the tests of dissolved gases (DGA*, dissolved water and furanic compounds)* (see here below the detail of the accredited tests). Created form the combination of SINAL and SINCERT, ACCREDIA is the only organism authorised by the Italian State to performRead more