Zhengzhou LP Industry CO.,LTD
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Enameled Wire



Zhengzhou LP Industry CO.LTD
E-mail: office@cnlpzz.com
Mobile: +86-18103865695
Tel: +86-371-65861282
Fax: +86-371-65861123
Address: No. 86, Jingsan Road, Jinshui Zone, Zhengzhou , Henan Pro. China.

Continuously Transposed Conductor

Continuously Transposed Conductor (CTC) is a type of cable that is used in high-voltage power transmission. It is made up of multiple strands of enameled wire that are twisted together in a continuously changing pattern to form a single conductor.

The design of CTC cable helps to reduce the amount of electromagnetic interference (EMI) that is generated by the power transmission process. This is because the twisting pattern of the wires helps to cancel out any EMI that may be generated by the individual strands.

CTC cables are typically used in high-voltage power transmission applications, such as in electric power grids, where they can help to improve the efficiency and reliability of the system. They are also used in applications such as transformers and electric motors.

The conductor is enamelled with multilayer insulation and for some applications can have a bondable over coat varnish applied along all surface or only in strip way along the plane surface.

Unless otherwise agreed with Customer, the insulation shall consist of three layers of 0,09 mm upgraded paper at least. The paper overing shall be applied according to the following arrangement:
• Papers are wound in the same direction.
• The inner layers papers’ shall be butt lapped and staggered from 25% to 40%. The two outmost layers shall be wound interlocked by 50%.
Agreement with the Customer will be required in case of change of thickness of one or more papers or the type of arrangement, in order to reach the required paper insulation thickness.
Continuously transposed conductor
When ordering Continuously Transposed Conductors, the following information are 
• number of strands and their nominal dimensions
• type of copper and type of enamelled wires (with or without bondable epoxy varnish)
• minimum winding diameter
• total paper thickness and paper type
• interleaving paper and its thickness
• required length and type and drum

Types of Continuously Transposed Conductor (CTC)
Paper covered conductor
CTC withou paper

Continuously Transposed Conductor (CTC)


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