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What does an Armature Winder do?

By Paul Scott
Updated Mar 06, 2024
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An armature winder is an artisan responsible for the repair, reconditioning, or construction of wire armature coils for transformers, electric motors and generators. Although strictly an electrical trade, armature winding is generally classified as electrical fitting because it involves additional mechanical elements. Armature winding typically involves two facets: construction and repair. The construction or manufacturing armature winder engages in the winding of new armatures while a repair winders concentrates on fault finding, repairing, or refurbishing existing parts. Both disciplines can involve a lot of precise, repetitive work which, although rewarding for some, may not be suitable for everyone.

Armature winding is essentially an electrical trade although it includes strong mechanical elements which qualify it for an electrical fitting classification. An armature winder is a trades person who deals with the construction and repair of wire coils. As simplistic as this description may sound, coil technology drives a large sector of most industrial arenas and has a strong component in domestic and hobby applications. Any electric motor, generator, or transformer has, at its heart, a wire coil. Motors and generators feature windings on their stators or rotors or both; static equipment such as welding machines and transformers are no more than wire coils, thus making the construction and repair of armatures an essential service.

Generally armature winding falls into two broad categories: construction/manufacturing and repair. The manufacturing armature winder is responsible for new equipment. This process typically begins with a technical brief outlining the exact specifications of the equipment in question. In the case of motor or generator armatures, the blank metal cores will be mounted on spindles which spin the part at a predetermined speed. The armature winder then chooses an appropriate wire stock and begins winding it off a reel onto the core.

This process must be constantly monitored because an exact number of windings are required to produce the correct resistance. The choice of wire stock thickness and the exact number of turns or coils are determined from standard tables to give very specific end results according to the job brief. New transformers are wound in very much the same fashion and require similar levels of precision and attention. During the winding process, the armature winder has to check that all insulator elements are in place and that end terminations are carried out correctly. Once the winding is complete, any anti-corrosion and insulating finishes are applied, and the coils are tested for continuity, correct resistance, and short circuits.

Repair and maintenance armature winders work with existing equipment and are responsible for repairing inoperative windings and carrying out preventive maintenance. The repair of burnt armatures typically begins with a diagnostic process to establish where the burnt off wires are located. During this process, the armature winder establishes whether or not it is viable to repair the coil or to better rewind it from scratch. Maintenance on working equipment typically entails cleaning the windings, checking for any breakdowns in resistance or shorts, reapplying anti-corrosive finishes, and replacing insulators if necessary. All connections and terminations will also be checked during this process.

Armature winding can be a little too repetitive by nature for some people but is a rewarding and challenging career for those who enjoy the attention to detail and precision involved. Those interested in armature winding can do an apprenticeship with many of the winding companies and which is a good way to learn the trade. Depending on the location, interested candidates may also approach technical training schools which offer related courses.

Practical Adult Insights is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.

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