For voltage transformation, transformers use the electromagnetic principle of “electricity generates magnetism, and magnetism generates electricity.”
Power transformers are electromagnetic components that transmit power, convert voltage, and isolate insulation, and are widely used in power supply and power electronics applications. Power transformers can be divided into several stages based on the size of the transmission power.
Inductors and transformers are electromagnetic induction components that are wound with insulated wires and are also commonly used in electronic circuits. In spite of the fact that they look similar, they actually function differently.
What are the causes of transformer noise?The sound power of any mechanical vibration is determined by the rate at which the noise source radiates energy. Flow rate must be described in terms of direction, so sound intensity is a vector, whereas sound pressure is a scalar, with only magnitude and no direction. Most transformer noise measurements can be done with ordinary microphones, which measure sound pressure only.
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