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Paper wrapped winding wire

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Product description
Parameters

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

 

Technical Parameter

Conductor Dimension
(mm)
a: 0.80≤a≤10.00
b: 3.00≤b≤24.00
φ: 1.00≤d≤10.00
Insulation Thickness
(mm)
0.30~5.95
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.

 

 

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