Round edge Aluminum Strip/Tape for Dry Winding
Transformer Round edge Transformer strip is used in
transformers for electrical engineering and in power distribution,
which means in power plants and substations, in local distribution
networks, in wind power, industrial plant and the power adaptors
belonging to electronic devices.1.ApplicationThis Specification
specifies aluminium foil used as conductors for
transformers ( hereinafter abbreviated as
"foil" ). 2.Applicable
DimensionsThe applicable dimension of foil shall
conform to table 1.Table 1 Unit : mmThickness0.3 to 2.4Width25
to 12503.Outline of the quality3.1 The chemical composition of
shall conform to table 2.Table 2 Unit : weight
%SiFeCuMnMgCrZnTiOthersAlIndividualTotalmax.0.2max.0.25max.0.04max.0.03max.0.03-max.0.04max.0.03max.0.03-min.99.65 3.2
Mechanical properties and electric conductivity shall conform to
Table 3.Table 3ThicknessTensile
strengthN/mm2(MPa)Elongation%Bending 180 buckling inside
radiusElectric conductivity% at
20°C Over 0.3 to 0.5 Less than
7525min. Close contact 62.5minOver 0.5 to
0.8 Less than 7530min. Close
contact 62.5min.Over 0.8 to 1.3 Less than
7535min. Close contact 62.5min.Over 1.3 to 2.0
Less than 7535min. Close contact 62.5min.Over 2.0 to
2.4 Less than 7535min. Close contact 62.5min.3.3
Dimensions shall conform to Table 4 which indicates dimensional
tolerances. Table 4Unit : mmThicknessTolerance in
thicknessTolerance in widthGuaranteed value-25 to 300Over 300to
600Over 600to 1250Over 0.3 to 0.5±0.02 ±0.3±0.5±1.0Over 0.5 to
0.8±0.03 ±0.3±0.5±1.0Over 0.8 to
1.3±0.04 ±0.3±0.5±1.0Over 1.3 to
2.0±0.04 ±0.3±0.5±1.0Over 2.0 to
2.4±0.05 ±0.3±0.5±1.0 3.4 Inside diameter, outside
diameter and unit weight shall conform to Table 5.Inside
diameterOutside diameterRemarks150mm, 305mm1200mmPaper core.
Special demand could be talk.505mm Note:The
classification of Table 5 may be disregarded if particularly
specified otherwise.Or Depeneding on customer's
requirements. 3.5 Coil's deformation shall conform to Table
6.Table 6.--Deformation of inside diameter(Max. - Min.) <
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