Transformer strips
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The transformer copper strips, or also called foils, have been one of our core products for many years. Sofia Med has been producing ETP copper strip for distribution transformers in accordance with all international standards, and even as per individual customer specifications.
We ensure consistent quality of our products by steadily investing in the latest technologies and great engineers. We are proud to be one of the most competitive European manufacturers at the global market!
- Transformer strips Properties
With our transformer strips (foils) you get:
· clean surface, oil-free
· lab certified mechanical and chemical properties
· rounded burr-free edges from 0.30mm, and <0.30 minimal-burr precision slit edges
· surface inspection system of both sides of the strip
· high dimensional accuracy, exceeding the standards
· high electrical conductivity >100% IACS (in comparison to Al - it is 40% more)
· surface protection against oxidation
· pure Grade A copper material
· paper interleaving
· safe and secure packing for truck or container loading, with additional protection against oxydiation
Dimensions
Thickness in mm Width in mm Edge shape 0,10 - 0,19 10 - 1000 precision cut 0,20 - 0,29 10 - 1250 precision cut 0,3- - 0,39 200 - 1250 rounded - burr free 0,40 - 2,50 200 - 1250 rounded - burr free Alloys according to EN 1652 standard
SM alloy Symbol Number Cu{%-min) Ρ (%-Range) Ο (%-max) SM1100 Cu-ETP CW004A 99.90 - 0,040 SM1030 Cu-PHC CW020A 99.95 0,001-0,006 - SM1031 Cu-HCP CW021A 99.95 0,002-0,007 - SM1201 Cu-DLP CW023A 99.90 0,005-0,013 - SM1220 Cu-DHP CW024A 99.90 0,015-0,040 - - Transformer strips Characteristics
Physical Properties (at Ambient Temperature of 20 oC)
CU Density (gr/cm3) 8,93 Melting Point (L/S* ίπ oC) 1.083 * L/S = Liquid/Solid
Typical Mechanical Properties of Cu
Alloy Temper Tensile Strength
(MPa)
Yield Strength
(MPa)
Elongation
(%)
Hardness
(HV)
Cu R200 200 - 250 100 max - - R220 220 - 260 140 max 33 - - Transformer strips Downloads
INDUSTRIAL APPLICATIONS
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Transformers
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Transformer bobbins
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Transformers