Transformer Winding Kraft Paper Wrapped Insulated Crepe Paper Covered Round Copper Twisted Wire

Price $14.50 Compare
Min Order 1000 kg
Shipping From Henan, China
Popularity 221 people viewed
Quantity
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Henan Windoo Industry Co., Ltd.

VIP   Audited Supplier 3 years
Profile Certified by SGS/BV
ZB
A
ISO9001, RoHS
Transformer, Instrument, Electrical Equipment, Motor
Round Wire
Copper Wire
windoo
Pallet
12-250mm²
China
85441100
Product Description
The windings of large power transformers use combined conductors or transposed conductors, which can greatly reduce the load loss, reduce the temperature rise of winding hot spots, improve the mechanical strength of the windings, make the structure more compact, and make the coil processing easier. It has been widely used in the design and manufacture of large power transformer windings. The composite wire is composed of several insulated magnet wire or copper and aluminum wires arranged according to the specified requirements. The winding wire is wrapped by a specific insulating material.


1.   
Conductor Material

Paper-covered copper twisted wire used 12.5mm Oxygen-free copper rod, alloy grade TU2, copper content ≥99.95%.

 

2.    Insulation Thickness

1.0mm

2.0mm

3.0mm

4.0mm

5.0mm

6.0mm

8.0mm

10.0mm

According to the customer request
 

3. Standard

GB/T 7673.3

IEC 60317-27

Customer Standard

 

4. Specification

Nominal cross-section/mm²

Core structure

Nominal cross-section/mm²

Core structure

10

12×7/0.39

125

27×12/0.70

16

12×7/0.49

150

14×19/0.85

25

19×7/0.49

160

27×12/0.80

35

19×7/0.58

185

27×12/0.85

50

19×7/0.68

200

37×12/0.75

70

27×7/0.68

250

37×12/0.85

80

37×7/0.62

300

27×19/0.85

95

37×7/0.68

315

37×19/0.75

100

37×7/0.70

400

37×19/0.85

120

27×12/0.68

500

37×19/0.95

Specifications beyond the above range, please contact us

Transposed conductor refers to the combination of a number of enameled copper flat wires into two rows with wide surfaces in contact with each other, and according to the requirements on the top and bottom of the two rows of enameled wires along the narrow side of the same direction of transposition, and electrical insulation tape is used. As a multi-layer continuous and tightly wrapped composition

 

The windings of large power transformers use transposed conductors, which can greatly reduce load loss, reduce the temperature rise of winding hot spots, improve the mechanical strength of windings, make the structure more compact, and make coil processing easier. It is widely used in winding design and manufacture.

 

In the production process of transposed conductors, there will be a problem of poor external dimensions of the transposed conductors. It is often found after the next process that it is irreversible, so that the product cannot be reordered. Winding process processing, adjusting the insulation structure affects the efficiency and product quality. Therefore, it is urgent to solve the existing problems of the large width and height of the transformer winding transposition wire, which is to solve the unqualified quality problem that the wire causes the transformer coil radial and lateral diameter to increase.

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