Tag: trattamento olio

Os transformadores elétricos são componentes-chave em qualquer sistema de distribuição elétrica, responsáveis por converter a tensão de um nível para outro (da produção para o uso). Os transformadores para distribuição MT/BT são essencialmente de dois tipos: de óleo e a seco. Os transformadores de óleo são constituídos por um invólucro metálico que contém óleo mineral, o qual desempenha a funçãoLeia mais

The EuroDoble is one of the main appointments for the technical updating of the sector in Europe. This year the event was held in Rome from 25 to 28 October 2022 on two main topics: Asset Management and Digital Substations. At the invitation of Doble Sea Marconi had the honor of opening the technical part of the event (keynote speech)

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The first "episode" of this important milestone dates back to May 2020 with the publication of the call for tenders by The Egyptian Environmental Affairs Agency (EEAA) through the agency for the sustainable management of persistent organic contaminants (POPs) in response to the obligations of the Stockholm Convention. www.popsegypt.com The tender, financed by the World Bank / GEF, was entitled: Decontamination of PCB-ContainingLeia mais

La flotta Sea Marconi cresce ancora, e lo fa con un impianto che rappresenta il punto più alto nell’ambito del trattamento dei liquidi isolanti. La Smart DMU (Decontamination Modular Unit) SIGMA è un vero e proprio gioiello tecnologico perché include tutti i punti di forza delle DMU by Sea Marconi raggiunti e consolidati nel corso degli anni, inoltre è piùLeia mais

Sea Marconi recently intervened to treat a transformer in a hydro-electric production plant in the north of Portugal, owned by EDP (Energias de Portugal), one of the largest producers of energy in Europe and one of the most important industrial groups in Portugal. The brilliant results of this activity earned Sea Marconi formal qualification by EDP (Labelec) for the “regeneration” of insulating oil inLeia mais

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 outLeia mais

The range of Sea Marconi systems has been enriched by an additional two elements, two mobile units for the physical treatment of oil. The new plants have been designed and developed to be lightweight (the estimated empty weight is 590 kg), with reduced bulk (L 1,560 x l 1,000 x h  1,440 (mm), and easy to move. This means they can also be transported on road trailersLeia mais

The 6th “Seminario de Tecnología y Diagnóstico de Transformadores y Fluidos Aislantes” in Monterrey in Mexico has just come to an end, involving the participation of speakers from Sea Marconi. The event was organised by Weidmann and Prolec (General Electric) for all operators involved in the selection, purchase and management of electric transformers with insulating fluid. Over the three days, many themes were dealtLeia mais

In accordance with the IEC 62701 standard (Fluids for electrotechnical applications – Recycledmineral insulating oils for transformers and switchgear), Sea Marconi has developed an ad hoc project for one of the most important European suppliers of transformer oils. The project involves the implementation of a system for the assessment (technical-economical and environmental) of insulating oil properties before and after their reclamation (oil regeneration). InLeia mais

Scenario Hydro power plant Nameplate data of transformer: Transformer: power transformer Year: 1948 Power [MVA]: 33 Voltage [KV]: 225 Oil mass [Kg]: 74.000  Solution Sea Marconi Solution: Dehydration treatment performed on-load (transformer fully load during the treatment) Before the treatment After the treatment After 6 months Oil temp. [°C] 15 63 35 Dissolved water [mg/Kg] IEC 60814 28 8 14 Saturation pecentageLeia mais