Paper wrapped winding wire
The products are used in the windings of a variety of oil-immersed transformers, reactors and other electrical equipments.
Types and models of product
|Types of Product||Model|
|Paper wrapped round copper(aluminum)wire||Z(L)|
|Paper wrapped rectangular copper(aluminum) wire||Z(L)B|
|Paper insulated combined conductor||ZZB|
|Paper insulated enameled rectangular copper wire||ZBQQ|
|Paper insulated epoxy combined conductor||ZZBQQN|
|Film covered round copper(aluminum) wire||M(L)|
|Film covered rectangular copper (aluminum) wire||M(L)B|
|Paper Layers||Max. 24 layers paper wrapping one time|
|Combination||Strands of Combination||≤8|
|Ways of Combining||Radial side combining|
|Axial side combining|
|Cross type combining|
|Copper||(Ω·mm2/m) Resistivity at 20℃≤0.017241|
|Proof stress of semi-hard conductor Rp0.2(MPa)100-28|
|Aluminum||(Ω·mm2/m) Resistivity at 20℃ ≤0.0280|
|Standard||IEC60317-27, GB/T7673 and mutual technical agreement|
Paper wrapped rectangular copper wire is the winding that with multilayer windings by using insulated paper on the surface.
The product is applicable to various oil-immersed transformer, reactor and other similar electrical equipment windings.
Main technique indicator:
Specification(mm): “a” side 1.12-3.35; “b” side 6.30 -22.00
Dimension of Paper-wrapped Rectangular Copper Wire (mm): W≤29.00；H≤15.00
Type of insulation: various insulated papers
Mode of paper-wrap: overlapping winding, interstitial winding, interlock winding and so on, can be negotiated.
Resistivity ρ20 (Ω·mm2/m) ：≤0.017241.
Proof strength of non-proportional Rp0.2（MPa）：80-200. （above 100 MPa is semi-hard wire）
Exceed above requirements, make mutual agreements by supplier and demander.