1. The buzzing is usually from components such as transformer windings vibrating. 2. Separate low-voltage transformer windings supply lighting and the motors driving auxiliary machinery. 3. Large power transformers are filled with oil that cools and insulates the transformer windings . 4. The isolation between input and output is provided by the insulation on the transformer windings . 5. Efficiency is reduced by losses in transformer windings and power dissipation in the rectifier element itself. 6. It insulates and cools transformer windings . 7. Additionally, the use of a transformer allowed multiple independent power supplies from separate transformer windings for different stages. 8. The pulse train coming from the flyback transformer windings is converted to direct current by a simple half wave rectifier. 9. Copper used for the manufacture of transformer windings is in the form of wire for small products and strip for larger equipment. 10. Although the field and currents are shown in one direction, they actually reverse direction with the alternating current in the transformer winding .
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