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  2. Magnet wire - Wikipedia

    en.wikipedia.org/wiki/Magnet_wire

    Inductor made with magnet wire wound around a toroidal core. Magnet wire [1] or enameled wire is a copper or aluminium wire coated with a very thin layer of insulation.It is used in the construction of transformers, inductors, motors, generators, speakers, headphones, hard disk head actuators, electromagnets, electric guitar pickups, and other applications that require tight coils of insulated ...

  3. Slot insulation - Wikipedia

    en.wikipedia.org/wiki/Slot_insulation

    Custom "U" Slot Insulation with sidewall step [1]. Slot insulation is the common name for shielding material used for the rotor inside a power generator.The slot insulation process for electric motors provides a barrier between the copper wirings and the steel lamination for all stator, armature and rotor products. [2]

  4. Insulation system - Wikipedia

    en.wikipedia.org/wiki/Insulation_system

    The electrical insulation system for wires used in generators, electric motors, transformers, and other wire-wound electrical components is divided into different classes by temperature and temperature rise. The electrical insulation system is sometimes referred to as insulation class or thermal classification.

  5. Electrical steel - Wikipedia

    en.wikipedia.org/wiki/Electrical_steel

    The magnetic properties of electrical steel are tested using the internationally standard Epstein frame method. [18] The size of magnetic domains in sheet electrical steel can be reduced by scribing the surface of the sheet with a laser, or mechanically. This greatly reduces the hysteresis losses in the assembled core. [19]

  6. Electromagnetic shielding - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_shielding

    In electrical engineering, electromagnetic shielding is the practice of reducing or redirecting the electromagnetic field (EMF) in a space with barriers made of conductive or magnetic materials. It is typically applied to enclosures, for isolating electrical devices from their surroundings, and to cables to isolate wires from the environment ...

  7. Insulator (electricity) - Wikipedia

    en.wikipedia.org/wiki/Insulator_(electricity)

    Three-core copper wire power cable, each core with an individual colour-coded insulating sheath, all contained within an outer protective sheath. An electrical insulator is a material in which electric current does not flow freely. The atoms of the insulator have tightly bound electrons which cannot readily move.

  8. Galvanic isolation - Wikipedia

    en.wikipedia.org/wiki/Galvanic_isolation

    Everlight EL817 phototransistor opto-isolator in DIP-4 package Halo TG110-S050N2RL 10/100BASE-TX Ethernet pulse transformer in SO-16 package, with the underside shown on the right. Galvanic isolation is a principle of isolating functional sections of electrical systems to prevent current flow; no direct conduction path is permitted.

  9. NEMA size - Wikipedia

    en.wikipedia.org/wiki/NEMA_size

    NEMA (National Electrical Manufacturers Association) contactors and motor starters are rated by sizes. These sizes are grouped by rated current and power . [ 1 ] [ 2 ]