Oil-immsersed transformers Enameled covered aluminum winding wire

Generally speaking, UL certified enameled wire needs to do four tests:
Thermal Aging Test (Full Thermal Aging Test or One Temperature Thermal Aging Test)
Dielectric Strength Test
Elongation and Heat Shock Test
Infrared Analysis – IR

Enameled wire is a main type of winding wire. It is made of a metal conductor as a conductive inner core and coated with a polymer insulating layer. It is mainly composed of these two parts; it is the conversion of electromagnetic energy into mechanical energy, heat energy, sound energy, light energy or machinery Functional materials that convert energies such as heat, heat, chemistry, sound and light into electromagnetic energy.

Enameled wire is a main type of winding wire. It is composed of a conductor and an insulating layer. After the bare wire is softened by annealing, it is painted and baked many times.

General purpose enameled wire (ordinary wire): Mainly used for winding wires in general motors, electrical appliances, instruments, transformers, etc., such as polyester enameled wire and modified polyester enameled wire.

After the temperature resistance level is exceeded, the insulation layer will age, melt and crack. The result is that the insulation capacity is greatly reduced, and it is prone to increased loss, short-circuit failure, etc.

Copper Clad Aluminum Enameled Wire is one of magnet wire, used for electric equipment. ECCA is popular enameled wire, maybe instead of the copper enameled wire and aluminum magnet wire in some field.

Copper Magnet Wire Manufacturing Process includes important three steps – enameling, winding and Inorganic insulated wires. Mainly introduce the method to ensure the quality of copper enameled wire.

The wire drawing metal processing technology can form fine lines on the surface of the metal material, which makes the metal more textured, and is used as a decoration by users and is well-loved. In the production process, the drawing lubricating fluid is indispensable in the drawing metal processing technology. It is widely used in the lubrication of the middle drawing, small drawing and micro drawing of enameled copper wire. So how to choose this kind of drawing fluid?

Nomex Paper Covered Copper Aluminium Enameled Wire is a kind of electromagnetic wire, which is specially used to manufacture winding coils of various oil-immersed transformers. It has good insulation on the outside and good conductivity on the inside. It is the heart of the transformer.

ENAMELED ROUND ALUMINUM WINDING WIRES are widely used for Oil-immersed transformer windings, Dry-type transformer, High temperature transformer, Motor, transformer, generator, welding machine; Sealed motor, Power tools motor, Auto alternators motor, Magnet coil, High power motor, household electro motors and micro-motors;

Magnet wire is an insulated wire used to make coils or windings in electrical products. Also called winding wire. Magnet wires must meet the requirements of a variety of uses and manufacturing processes. The former includes its shape, size, ability to work at high temperatures for short and long periods of time, as well as withstanding strong vibration and centrifugal force at high speeds in some occasions, resistance to corona and breakdown under high voltage, and resistance to chemicals in special atmospheres Corrosion, etc.; the latter includes the requirements of stretching, bending and abrasion during winding and embedding, as well as swelling and erosion during dipping and drying.

The enameled wire manufacturer takes you to understand the high-temperature paint wrap of high-temperature paint wires, and it is necessary to judge, whether its appearance, size, and performance meet the technical standards of the product and user technical agreements. After the measurement, test, the technical standards of the product and the technical agreement of the product are compared to the requirements for qualified products, which does not meet the requirements for unqualified products.

Polyimide Kapton Covered Enameled Aluminum Wire Strip is a multi-layer polyimide & fluoropolymer dispersion-coated film. The fluoropolymer coating functions as a heat-fusible layer for bonding to magnet wire conductors. It has superior scrape abrasion resistance and exhibits lower frictional properties than wire insulated with other commonly used polyimide materials. Polyimide film aluminum wire is ideal for demanding magnet wire applications and for difficult-to-wind motors.

Enameled wire is a main type of magnet winding wire. It is composed of a conductor and an insulating layer. After the bare wire is softened by annealing, it is painted and baked many times. However, it is not easy to produce products that not only meet the requirements of the standard, but also meet the requirements of customers. It is affected by the quality of raw materials, process parameters, production equipment, environment and other factors. Therefore, the quality characteristics of various enameled wires are different, but they all have Mechanical properties, chemical properties, electrical properties, and thermal properties

The wrapped wire is made of natural silk, polyester fiber, glass fiber, insulating paper or synthetic resin film, etc., tightly wrapped on the conductive wire core to form an insulating layer. There are also insulating layers wrapped around the enameled wire. In addition to thin-film insulation, others such as glass filaments need to be dipped in adhesive insulating varnish to improve their electrical, mechanical and moisture-proof properties. In fact, they are combined insulation.

The heat resistance class of enameled wire is the ambient temperature where the enameled wire can work normally for a long time (above 20000h).

Standards Of Enameled Wire includes
1）IEC 60317 for Europe
2）JIS C3202 for Asia
3）NEMA MW 1000C (inch) or NEMA MW 1000C metric (mm) for North America

Enameled aluminum wire ,High resistance to heat shock, high temperature and good performace at softening breakdown, suitable for high-speed automated routing, able to be direct weld, with no pinhole, resistive to high frequency, wearing, refrigerants and electronics corona, high breakdown voltage

1. Polyester enameled wire (P.E.W.)
Polyester enamel-covered wire is made of heat-resistant Terephthalic Polyester resin as the main grease as the insulating film and baked on the conductor. Its characteristics are as follows:
¡ñThe heat resistance is superior to synthetic tree (P.V.F.) enameled wire and U.E.W. enameled wire.
¡ñExcellent chemical resistance (except alkaline) and solvent resistance.
¡ñThe mechanical strength is comparable to synthetic resin (P.V.F.).
¡ñThe force rate and dielectric rate are comparable to U.E.W. enameled wire.
¡ñAlkali resistance and moisture resistance are better than synthetic resin enameled wire (P.V.F).

Nomex covering corresponds to class H insulation is mainly used in the construction of condensers and capacitors. Main application of it is in shielding of cables in high temp. environments (200¡ãC) such as dry type transformers, military and aerospace cables. Nomex covered conductors are more effective in condition where temperature resistance and dielectric strength requirements are high.
Application of Nomex Paper Covered Aluminum wire :
Mobile Transformer,Traction Transfomers,Pole-mounted distribution transformers,Power substantions,rectifiers,oil-immersed transfomer coil winding.

Enameled Copper Coating Aluminum Wire refers to the wire with aluminium core as the main body and a certain proportion of copper coating on it. It can be used as conductor of coaxial cable and conductor of wire and cable in electrical equipment.Polyurethane enameled wire; thermal grade 130, 155, 180, 200. It is characterized by direct welding, good high frequency resistance, easy coloring and good moisture resistance.

Paper insulation enameled transposition conductor characteristics:
1. There is no circulating current, the eddy current loss in the coil is small, and the current density can be improved;
2. Simplify the winding process;
3. The full rate is higher than that of the paper-covered wire slot.

Paper-insulated enameled transposed wires are mainly used in the coils of large transformers.

Springiness of Round Enameled Wire is one of important performance in accordance with the IEC standards to ensure the quality of Round Enameled Wire. How to improve the performance, the article introduce how to operate the enameling machine, during the manufacturing process of enameled wire, the worker shoule be focus on some points.

Fiberglass Covered Aluminum Wire Production Proce

One step :
Take the pure aluminum material drawing into the aluminium rod wire;

Two step :
Through the extrusion production line, take the aluminum rod wire into extruding and coarse drawing operation, then becoming the requirement specification of Bare aluminium wire;

Three step :
Take up the Bare aluminum wire conductor, and inspection the bare wire coil products;

Four step :
Annealing the bare aluminum wire, and placed neatly, ready to production;

Five step :
Pay-off the wire coil products, ready to fiber glass covering production;

Six step :
Taking into straightening and tension levelling operation, and then for the covering fiber glass;

Seven step :
Doing the fiber-glass covering operation, and inspecion the production process;

Eight step :
Packing the fiberglass covered wire products, and placed neatly in the warehouse.

Compared with general round wires, flat enameled wires have the following advantages:
Higher floor area ratio and better use of space: The high conductor density enables coils and components of the same size to achieve higher efficiency, save materials and reduce costs.

Enameled wire is a main type of winding wire. It consists of a conductor and an insulating layer. After the bare wire is softened by annealing, it is painted and baked many times. However, it is not easy to produce products that not only meet the requirements of the standard, but also meet the requirements of customers. It is affected by the quality of raw materials, process parameters, production equipment, environment and other factors. Therefore, the quality characteristics of various enameled wires are different, but they all have Mechanical properties, chemical properties, electrical properties, and thermal properties are four major properties.

Main Applications:
All kinds of household electric motors, vacuum cleaner motor, electric motor
All kinds of transformers, inductors, rectifiers
All kinds of fan motor
All kinds of high frequency electric appliance

Kapton insulated aluminium wires are suitable for both HV and UHV applications at temperatures ranging from -269 to 200¡ãC with maximum bakeout temperature of 260¡ãC.
Kapton insulated aluminum wire is designed for use in high & ultra-high vacuum applications. Kapton has high mechanical strength, excellent electrical insulation properties, and low outgassing rates making it ideal for use as an in-vacuum insulator. These wires can be utilized in temperature ranges from 4K to 260¡ãC.

Speaking of the copper enameled wire, I believe everyone should know. Today, we introduce you to a wire, ie the copper paint package. Let us simply look at the transportation and preservation of copper-clad aluminum wires, because if many wires are transported incorrect, it is very likely to be used, so let us simply understand the transportation and preservation of the copper paint wire, so you can be here.

Pay-off (link pull) ¡ú annealing ¡ú painting ¡ú baking ¡ú cooling ¡ú lubrication ¡ú take-up

7 type of enameled wire in accordance with insulation materials, list the thermal class, advatanges and application per type of enameled wire. Enameled wire types also can be divided into copper magnet wire and aluminum wire in accordance with conductor.