France Archives - Sea Marconi https://seamarconi.com/it/tag/francia/ Sustainable solutions for life cycle management (LCM) of electrical transformers with insulating oils Fri, 28 Feb 2025 07:56:08 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.1 RTE and the Strategic Investment Plan: An Opportunity for the Energy Transition https://seamarconi.com/en/newsblog/rte-and-the-strategic-investment-plan-an-opportunity-for-the-energy-transition/ Thu, 27 Feb 2025 14:34:11 +0000 https://seamarconi.com/it/?post_type=newsblog&p=119824 RTE, the operator of the electricity transmission network in France, has announced an ambitious strategic investment plan aimed at supporting the decarbonization and reindustrialization of the country. With a total investment of €100 billion by 2040, the plan includes the modernization and adaptation of the entire French electricity network. The decarbonization and reindustrialization objectives of France will increase the share

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]]> RTE, the operator of the electricity transmission network in France, has announced an ambitious strategic investment plan aimed at supporting the decarbonization and reindustrialization of the country. With a total investment of €100 billion by 2040, the plan includes the modernization and adaptation of the entire French electricity network.

The decarbonization and reindustrialization objectives of France will increase the share of electricity in the energy mix to over 50% by 2050. To meet this challenge, RTE presented its strategic investment plan for the next 15 years on February 13, 2025.

The Three Pillars of the Investment Plan

The strategic plan is based on three fundamental pillars:

  • Renewing the network to make it more resilient to climate change;
  • Expanding connections to meet the growing demand for low-carbon energy;
  • Strengthening high and extra-high voltage lines to ensure stability and security in energy distribution.

Sea Marconi and Its Key Role in Sector Modernization

The evolution of the French electrical system represents a great opportunity for industry players, including Sea Marconi, which, with its expertise in asset and risk management and transformer lifecycle management, is ready to support this transformation process. Our expertise in solutions for diagnostics, prognosis, and integrated treatment of oil-insulated equipment perfectly aligns with the needs for network renewal and reinforcement.

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]]> Removal of PCBs and environmental protection France 2012 https://seamarconi.com/en/portfolio_item/removal-of-pcbs-and-environmental-protection-france-2012/ Fri, 31 May 2013 14:54:14 +0000 http://www.bioenpro.com/wordpress01/?post_type=portfolio&p=4220 The post Removal of PCBs and environmental protection <strong>France 2012</strong> appeared first on Sea Marconi.

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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)
Transformer on which the dehalogenation was done

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]]> Removal of PCBs and environmental protection France 2008 https://seamarconi.com/en/portfolio_item/removal-of-pcbs-and-environmental-protection-france-2008/ Fri, 31 May 2013 14:53:51 +0000 http://www.bioenpro.com/wordpress01/?post_type=portfolio&p=4219 The post Removal of PCBs and environmental protection <strong>France 2008</strong> appeared first on Sea Marconi.

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Scenario

Nameplate data of transformer:

Transformer: GSU transformer
Manufact: xxx
Year: 1974
Power [MVA]: 760
Voltage [KV]: 400
Oil mass [Kg]: 55.000

Problem

See analytical results of the oil before treatment (table below)

Soluzione Sea Marconi

Solution: Dehalogenation treatment (CDP Process®) in order to remove the PCBs from the oil and transformer.

Before treatment

After treatment
TAN [mg KOH/g] 0,029 < 0,010
Breakdown voltage [KV] 58,7 75
PCBs [mg/Kg] 57,2 9,6
Transformer on which the dehalogenation was done

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]]> Removal of PCBs and environmental protection France 2004-2012 https://seamarconi.com/en/portfolio_item/removal-of-pcbs-and-environmental-protection-france-2004-2012/ Fri, 31 May 2013 14:53:25 +0000 http://www.bioenpro.com/wordpress01/?post_type=portfolio&p=4211 The post Removal of PCBs and environmental protection <strong>France 2004-2012</strong> appeared first on Sea Marconi.

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Scenario

Utility – Power transformer of generation (nuclear, thermal, hydro), transmission and distribution with a total of 1.093 transformers.

Namepale data of transformers:

Power max [MVA]: 760
Voltage max [KV]: 400
Oil mass [Kg]: 75.000 each
PCB max [mg/Kg]: 5.000
PCB target [mg/Kg]: < 20 (after 90 days)

Solution Sea Marconi

Solution: Dehalogenation treatment (CDP Process®) in order to remove the PCBs from oils and transformers. The treatments were performed off-load and on-load (transformer fully load during the treatment).

Dehalogenation treatment

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]]> Removal of PCBs and environmental protection Cyprus 1997 https://seamarconi.com/en/portfolio_item/removal-of-pcbs-and-environmental-protection-cyprus-1997/ Fri, 31 May 2013 14:52:50 +0000 http://www.bioenpro.com/wordpress01/?post_type=portfolio&p=4210 The post Removal of PCBs and environmental protection <strong>Cyprus 1997</strong> appeared first on Sea Marconi.

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Scenario

International Tender of the Electricity Authority of Cyprus for: “Elimination of PCBs from the insulating oil of distribution transformers”. In the 1997 Sea Marconi awarded the tender for decontaminate 520 transformers.

Nameplate data of transformers:

Power max [KVA]: 10-1000
Oil mass contaminated [Kg]: 94.000
PCB max [mg/Kg]: 15.000
PCB target [mg/Kg]: < 10

Solution Sea Marconi

Solution: Dehalogenation treatment (CDP Process®) in order to remove PCBs from the oils and the transformers.

Example of configuration for perform a dehalogenation process for PCBs removal

The CDP Process by Sea Marconi allowed to Cypriot authorities to save about $ 2 million compared to the alternative solution (purchase of new oil, change the oil contaminated and its incineration).

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]]> Drying papers and transformer France 2008 https://seamarconi.com/en/portfolio_item/drying-papers-and-transformer-france-2008/ Fri, 31 May 2013 14:52:22 +0000 http://www.bioenpro.com/wordpress01/?post_type=portfolio&p=4209 The post Drying papers and transformer <strong>France 2008</strong> appeared first on Sea Marconi.

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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 pecentage 62% 3% 13,94%
Water inside the paper using the equilibrium curve > 10% (*) 3,9%
Insulating condition IEC 60422 Extremely wet (*) Moderately wet
Breakdown voltagea [KV] IEC 60156 39,8 > 75 > 75

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]]> Removal of PCBs and non-DBDS corrosive sulfur (C2) France 2013 https://seamarconi.com/en/portfolio_item/removal-of-pcbs-and-non-dbds-corrosive-sulfur-c2-france-2013/ Fri, 31 May 2013 14:50:34 +0000 http://www.bioenpro.com/wordpress01/?post_type=portfolio&p=4206 The post Removal of PCBs and non-DBDS corrosive sulfur (C2) <strong>France 2013</strong> appeared first on Sea Marconi.

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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-site and on-load (transformer in operation and fully load during the treatment).

Before the treatments

After the treatments Sea Marconi
PCB* [mg/Kg] 81 20
Total sulfur [mg/Kg] 21,600 20,500
TCS (total corrosive sulfur)
as DBDS Eq. [mg/Kg]		 140 < 10
CCD Corrosive NOT Corrosive
DBTP [mg/Kg] 380 280
TAN [mg KOH/g] 0,096 < 0,03
IFT 19,5 26
Color 6,9 3

*The agreed guarantee was PCBs < 40 [mg/Kg]

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]]> Removal of PCBs and non-DBDS corrosive sulfur (C2) France 2012 https://seamarconi.com/en/portfolio_item/removal-of-pcbs-and-non-dbds-corrosive-sulfur-c2-france-2012/ Fri, 31 May 2013 14:50:06 +0000 http://www.bioenpro.com/wordpress01/?post_type=portfolio&p=4205 The post Removal of PCBs and non-DBDS corrosive sulfur (C2) <strong>France 2012</strong> appeared first on Sea Marconi.

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Scenario

Hydro power plant with 3 GSU transformers

Nameplate data of the transformer:

Manufact: xxx
Year: 1965
Power [MVA]: 80
Voltage [KV]: 220
Oil mass [Kg]: 35.000
Oil type: naphthenic blended

Solution

Selective deplarization treatment (Chedcos) in order to remove the corrosive sulfur compounds and dehalogenation treatments (CDP Process®) in order to remove the PCBs from the oil and the transformers. the tratments were performed on-site and on-load (transformer in service and fully load during the treatment).

Before the treatment

After the treatment
PCB* [mg/Kg] 96 26
TCS (total corrosive sulfur) DBDS Eq. [mg/Kg] 64 < 10
CCD Corrosivw NOT Corrosive
DBTP [mg/Kg] 16 14
TAN [mg KOH/g] 0,194 0
TgD 0,03737 0,05144

*The agreed guarantee was PCBs < 50 [mg/Kg]

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]]> Removal of PCBs and non-DBDS corrosive sulfur (C2) France 2010 https://seamarconi.com/en/portfolio_item/removal-of-pcbs-and-non-dbds-corrosive-sulfur-c2-france-2010/ Fri, 31 May 2013 14:49:40 +0000 http://www.bioenpro.com/wordpress01/?post_type=portfolio&p=4204 The post Removal of PCBs and non-DBDS corrosive sulfur (C2) <strong>France 2010</strong> appeared first on Sea Marconi.

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Scenario

Steel Factory: 8 Equipment

Nameplate data of the transformers:

Namufact: xxx
Year: 1973
Power [MVA]: 85
Voltage [KV]: 63
Oil mass [Kg]: 18.150
Oil type: naphthenic blended

Oil Fingerprint. It shows the presence of sulfur compounds responsible for oil corrosivity

Solution

Selective depolarization treatment (Chedcos) in order to remove the corrosive sulfur compounds and dehalogenation treatments (CDP Process®) in order to remove the PCBs from the oils and transformers. the treatments were carried out on-site and on-load (transformer in service and fully load during the treatments).

Before the treatment

After the treatment
PCB* [mg/Kg] 151 17
TCS DBDS Eq. [mg/Kg] 172 < 10
CCD Corrosive NOT Corrosive
Cu 32 5,18
TAN [mg KOH/g] 0,131 0,01
Color 6.5 2

*The agreed guarantee was PCB < 50 [mg/Kg]

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]]> France 2012 Removal of PCBs and non DBDS corrosive sulfur (C2) https://seamarconi.com/en/portfolio_item/removal-of-pcbs-and-non-dbds-corrosive-sulfur-c2-france-2012-2/ Fri, 31 May 2013 14:49:10 +0000 http://www.bioenpro.com/wordpress01/?post_type=portfolio&p=4203 The post <strong>France 2012</strong> Removal of PCBs and non DBDS corrosive sulfur (C2) appeared first on Sea Marconi.

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Scenario

Il classico trattamento con terre follari si dimostra totalmente inefficace contro lo zolfo corrosivo

Caratteristiche tecniche del trasformatore:

Costruttore: xxx
Anno: 1969
Potenza [MVA]: 14
Tensione [KV]: 63
Massa olio [Kg]: 4.200
Tipo di olio: Esso Univol 54

Oil Fingerprint. Presence of sulfur compounds without DBDS
Il trattamento con terre follari (NON da Sea Marconi) non ha prodotto alcun risultato contro lo zolfo corrosivo
After the treatment with fuller earth remain signs of corrosivity

Soluzione

Trattamento di depolarizzazione selettiva (Chedcos) per la rimozione dei composti solforati (NON DBDS) responsabili della corrosione.

The Selective depolarisation treatment proves effective against corrosion unlike that with fuller earths

Prima dei trattamenti

Dopo il trattamento con terre follari

Dopo il trattamento di depolarizzazione by Sea Marconi
Colore 4 3.7 1
TCS DBDS Eq. [mg/Kg] 55 51 < 10
CCD Corrosivo Corrosivo NON Corrosivo
DBTP [mg/Kg] – 50 45
TAN [mg KOH/g] 0,25 0,035 0,01
DF – 0,01879 0,012
IFT [mN/m] – 25,3 41

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