Currently Browsing : Corrosive sulphur

EDP Portugal qualifies Sea Marconi thanks to its corrosive sulphur treatment 0


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 in electrical transformers. On a more operational level, the transformer treated is from 1953, with a power of 7.5 MVA, a voltage of 70 KV and an oil quantity of 6,300 kg. The activity performed on the transformer [&hellip

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Posted on 11, August 2015

in Category Case history, Oil and transformer treatments, References

Sea Marconi the chosen supplier of a technological solution to treat 4,600 tonnes/year, for oil recycling in the UK 0

schema of stationary plant for PCB & corrosive sulfur decontamination

Meetings at the beginning of the year between Sea Marconi and our English client, and the preliminary study for a solution to treat recycled oils, have recently been consolidated through the signing of a contract for the supply of technology and materials. More specifically, Sea Marconi is working with one of the main oil producers in the United Kingdom to supply afixed plant for the treatment of contaminated oils (mainly from PCBs and corrosive sulphur), which will then be recycled in line with industry standards. The system will be able to decontaminate PCBs to under 2 mg/kg (determined using the IEC [&hellip

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Posted on 27, May 2015

in Category Oil treatment plant

Sea Marconi will participate in the Monterrey seminar (Mexico) offering a solution to corrosive sulphur 0


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 dealt with regarding how to guarantee and assess the reliability of the most critical components determining the life cycle of a power transformer. The last day was reserved to aspects essentially tied to the diagnosis and maintenance [&hellip

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Posted on 26, May 2015

in Category Events

Hong Kong appoints Sea Marconi to verify DBDS corrosion levels in their transformers 0


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 subsequently propose the only truly efficient and long-lasting solution for equipment contaminated by DBDS (Dibenzyl Disulfide): selective depolarisation (also possible on-load) to remove the DBDS. Given the potential risk of the C1 criticality, this activity is considered strategic [&hellip

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Posted on 25, February 2015

in Category Criticality, Services

Sea Marconi technology exported to Mexico meets the expectations of the Comision Federal de Electricidad (CFE) 0


The partnership between Sea Marconi and local partner “Energy Solution SA DE CV“, a subsidiary of the NIETO group and an important player in the Mexican Oil & Gas sector, is enjoying great success. In 2014, the Sea Marconi process for the treatment of oils and transformers contaminated by PCBs, was successfully validated. The activity was performed in Torreón on a 33,000 kg oil transformer in on-load mode for the entire duration of the treatment. The transformer belongs to the Comision Federal de Electricidad (CFE), which provided a positive verdict not only for the performance of the process, but also [&hellip

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Posted on 30, January 2015

in Category Oil treatment plant

TAESA Brazil buys its second Sea Marconi system to combat corrosive sulphur 0

impianto trattamento olio trasformatore brasile1

Recalling Sea Marconi’s most important activities in 2014, we don’t want to exclude the delivery of an oil treatment system, model DMU 100 5000 24C, to TAESA, an important Brazilian utility. We are extremely proud of this order, because TAESA already purchased one of our systems in 2009 (read article). Given their high level of satisfaction, in terms of both the system’s performance and the results of the treated oil, they decided to repeat the purchase. The new system will be used for onsite treatment, in on-load mode (transformer in operation and powered during the entire treatment) on transformers and [&hellip

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Posted on 5, January 2015

in Category Oil treatment plant

Brilliant depolarization in Colombia runs ever faster on the grapevine, generating new opportunities 0


L’eco The echo generated by the depolarisation from corrosive sulfur carried out last year on 5 transformers (170 tons of oil) at the Urrà power station is arousing considerable interest amongst owners of fleets of electric machines in Colombia. It is not by chance that major projects (e.g. Cali, Medellin, Bogotà) are taking life with the main public and private companies and utilities for management of up to 500 KV machines. The activities that are gradually being defined comprise analysis and diagnostics for failure prevention and integrated on-site treatments to re-establish the conditions of health of oil and transformers of Colombian energy [&hellip

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Posted on 23, April 2014

in Category About us

PCBs + C2 and C4 corrosions in extreme logistics conditions (2013)


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”.   Nameplate data of the transformer Year: 1969 Power [MVA]: 105 Voltage [KV]: 225 Oil Mass [Kg]: 29.000 Oil Type: paraffinic non inhibited   [manual_related_posts] For this case, Sea Marconi has done a detailed study using multidetection diagnostic tools from which emerged the [&hellip

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Posted on 22, February 2014

in Category

From Brazil arrive an order for an oil treatment plant for corrosive sulfur contamination 0


Among the interesting outlooks at the end of 2013 there is the acquisition of an important order issued by the Brazilian TAESA, one of the largest groups for the transmission of electric power in Brazil. The subject of the sale is a containerised mobile unit (DMU) capable of performing an integrated treatment of the oil and transformers contaminated by corrosive sulfur, with a flow capacity of 5,000 l/h. This is the second unit acquired, joining the one purchased in 2009 by Terna Participações. This order shows the capability ad faith shown toward Sea Marconi able to offer a reliable product, turn-key, validated also by ANEEL (Agência [&hellip

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Posted on 21, February 2014

in Category Oil treatment plant

Colombia. The depolarisation treatment for the elimination of DBDS – Corrosive sulfur, has been positively completed 0

Trattamento di depolarizzazione presso centrale idroelettrica Urrá Colombia

Among the “crown jewels” interventions of 2013, the selective depolarisation to remove the DBDS and polar compounds on 5 transformers must indeed be mentioned. In particular, the activity took place on 4 transformers and a rectifier (for a total of 170 tons of oil) operating at the Urrà, hydroelectric power station North-Western Colombia (read the article relative to the operation start). The said power station is located in a National Park, with very strict environmental and landscaping regulations, and it was for this reason that the Sea Marconi solution has been preferred as alternative to the change of the insulating oil. This latter option would [&hellip

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Posted on 20, February 2014

in Category Case history