Tag: DBDS

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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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 high profile speakers: Cristina Tumiatti (Global Business Development Director),

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After some difficulties imposed by COVID-19, last February 2021 the treatment campaign in Saudi Arabia kicked off. This is an activity out of the ordinary for the amount of electrical equipment to be treated, 23, their size, up to 130 tons of oil, and consequently the total amount of insulating liquid to be treated: 1,750,000 kg. The transformers are mainlyLeia 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

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

Sea Marconi recently performed an expert activity for the most important utility in Hong Kong. The service involved an analysis and diagnosis campaign on a large fleet of transformers and shunt reactors, for the purpose of verifying the presence of corrosive sulphur by DBDS (C1). The results of this activity allowed us to model the operating conditions of the Client’s machines and subsequentlyLeia 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 Company involved in production of primary aluminum with 8 rectifiers transformers Nameplate data of the transformers: Transformer: rectifier, ODAF with membrane Manufact: xxx Year: 1998 Power [MVA]: 93,4 Voltage [KV]: 66 Oil mass [Kg]: 27.200 Oil type: naphthenic Step 1 First failure with discharges of high energy (D2) Step 2 Post failure analysis, oil fingerprint with identification ant quantification ofLeia mais

Scenario Company in the chemical business, 4 GSU transformer Nameplate data of the transformer: Manufatc: xxx Year: 2000 Power [MVA]: 47 Voltage [KV]: 34 Oil mass [Kg]: 12.000 Oil type: naftenico Solution Solution: Selective depolarization treatment (Chedcos) performed on-ste and on-load (transformer in service e fully load during the treatment). The treatment has guaranteed DBDS < 10 mg/kg. Before treatment After treatment DBDS [mg/Kg] 125Leia mais

Scenario Primary substation with 3 Grid transformer and 2 shunt reactors Nameplate data of the transformer: Manufact: xxx Year: 1998 Power [MVA]: 250 Voltage [KV]: 345 Oil mass [Kg]: 118.000 Oil type: naphthenic Analitical and diagnostic results The analysis and subsequent diagnosis performed by Sea Marconi on the machines of the customer showed a clear presence of DBDS Profilo di distillazioneLeia mais