Winding Wires

Winding Wires


Winding wires are among one of the most important types of wire used in electrical industries. They are used in the production of various types of electromagnetic devices like generators, transformers, pumps, control devices and motors. Though a lot of materials are available and suitable for constructing winding wires but copper is the most widely accepted metal for it. Winding wires are either enameled or coated with various types of varnish and other insulating materials.

Copper is the most common conductor used in winding wires. It may be either solid or stranded. It offers very low resistance. The insulation used in these winding wires are made of special and tough grade polymer compounds. These materials make the wire impervious to water, oil, grease, and chemicals.

Applications of Winding Wires
Winding wires are applied in several industries. They are used as very fine wires in electronics and telecommunications applications. Winding wires are used as large insulated and covered wires for large motor and power transformation industries. The use and demand of winding wires are increasing rapidly as the economy of developing countries as well as the developed countries are recovering and surging. So the demand for electricity as well as winding wires is rapidly increasing in these nations. Some of the most important industries where winding wires are used are:

* Automotive
* Domestic appliances
* Electrical rotating machinery
* Transformers
* Other electrical equipment

Varnishing of Winding Wires
Varnishing of winding wires provide a layer of insulation on these wires. The varnishes must have the capability to resist high temperatures. The winding wires are generally composed of a conductive material which is usually copper. This conductor is covered with one or more layers of varnish. Varnishes are comprised of a copolymer which is obtained from a thermoplastic or thermosetting resin. These layers can withstand temperatures up to 200°C. The resin is made of any of the followings materials like

* Polyamide imide (PAI)
* Polyester imide (PEI)
* Polyimide (PI)
* Polyester (PE)
* Polyurethane (PU)
* Polyvinyl acetal (PVA).

Need of varnishing
Varnishes add an extra stability and strength to the winding wires. They improve their ability to withstand partial discharges and voltage peaks at very high temperatures. These insulated varnished winding wires are used in the manufacturing of coils for variable frequency controllers and converters.

Winding Wire Industry
Winding wire is used as semi finished material for generating electromagnetic fields and transforming electrical energy. The industry of winding wire is a mature industry and its market is on the rise. Its use in making different types of electromagnetic devices make them one of the important wires in the electrical industry. The motors, transformers, and generators are the building block of any type of industries, plant or systems. So their use in diverse areas are spreading its market by leaps and bounds.

Double Insulated Submersible Pump Motors Winding Wires
The double insulated winding wires are used for the purpose of winding & re-winding of submersible pumps motors. The especially double insulation of wires is to operate the submersible pumps motor under water over long periods.