Sustainable solutions for life cycle management (LCM) of electrical transformers with insulating oils
Sea Marconi occupies a leading market position in the sector, with 3000 clients across 5 continents.We have offices in Italy, France, Spain, Germany and Argentina, and operate in other areas of the world through qualified partners.
- Analysis and diagnosis of oils and transformers
- On-site treatments of oils and transformers
- Construction and sale of systems for of oil and transformer treatment
Analyses carried out every year
Transformers analysed every year
Transformers treated in in the last year
Oil treated in the last year
Diagnoses in our database
Select a “pathology” in the critical issues list and find the “therapy” along with real cases of success
01. Critical issues
- Water in transformer (paper/oil)
- Corrosion caused by dissolution of metals (C4)
- Degradation of insulating papers
- Chemical degradation of oil
- Insoluble deposits (sludge)
- PCBs in oil and transformer
- SF6 in oil – Bushing seal defects
- Corrosive sulfur with DBDS (C1)
- Corrosive sulphur from sulphur combustion by-products (C3)
- Corrosive sulfur without DBDS (C2)
03. Success Stories
How we work
Protection of the strategic machinery fleet
TransfoClean is based on the analogy between men-blood and transformer-oil.Similar to the way clinical diagnostics are performed, Sea Marconi monitors the state of health of transformers by analysing (and diagnosing) the oil inside them.
Top Selling Products
Revolving table for preparing samples for DGA analysis
The Revolving Table is a tool designed to improve the preparation steps for insulating oil samples destined for Dissolved Gas Analysis (DGA) with the gas chromatography technique in the head space. Developed and validated by Sea Marconi in 1999, the revolving table is currently being used successfully in many laboratories internationally for everyday work.
Kit for on site PCB screening in oil
The insulating liquids and related systems are classified respectively as “PCB” and “systems containing PCBs”, when the total concentration of the PCBs (209 possible congeners), PCTs (polychlorinated triphenyls – 8557 possible congeners) and PCBTs (polychlorinated Benzyltoluene) exceeds the limits stated by national laws.
Kit to measure acidity on site
The total acidity (TAN) is one of the indicators of insulating liquid deterioration, together with water content and solid contaminants, which influence the dielectric properties of the oil. The acidity impacts the decay of the insulating papers and can also be responsible for the corrosion of the metal parts inside transformers.
Kit to measure total corrosive sulphur on site
The SM-TCS Kit (Sea Marconi – Total Corrosive Sulphur) continues to be the only truly effective and reliable solution to know precisely how corrosive an insulating liquid is.
The need to develop a quantitative method arises from the fact that in many cases, by running the CCD Test (IEC 62535) of oxidized oils, the visual outcome easily leads to false positives creating undue alarm.
Oil Sampling Kit for Hermetic Equipment
This kit can be used for oil sampling from hermetic transformers and electrical equipment.
The hydraulic couplings provided with this kit are also suitable for sampling of oil or free-gases from Buchholz relay.
StabOx, high-precision lab equipment to support oxidation stability test
StabOx performs the accelerated aging of liquids under controlled conditions with great precision, the equipment fully complies with all the requirements of the reference standard (IEC 61125* ed. 2.0 2018-01) but starting from those it is able to offer much higher quality standards.
TransfoClean is the brand that contains the line of core business products and services; these are solutions to support the management of the Life Cycle of electrical equipment with insulating fluids
My Transfo is the most important European conference on the management of transformer fleets and insulating oils. Since 2002 it is the most awaited event for professional updating and the exchange of experiences among professionals