Working principle and function of transformer and voltage regulator

1、Briefly describe the function and working principle of transformer

Function: In order to economically transmit, reasonably distribute and safely use the power generated by the power plant, power transformers are required. Simply put, the working principle of transformer is "electricity generates magnetism, magnetism generates electricity". The primary (primary) coil and secondary (secondary) coil of the transformer are wound together on an iron core. When the voltage U1 is applied to the primary coil, an alternating magnetic flux is generated in the iron core, which passes through the primary and secondary windings. According to the electromagnetic induction law, the induced potentials E1 and E2 are generated in the primary and secondary windings respectively. According to the law of electromagnetic induction, the induced potential of the primary and secondary windings is: E1/E2=U1/U2=N1/N2=K (k is the transformation ratio)

2、What are the advantages of ring transformer over square transformer

Ring transformer with the same wattage has higher working efficiency, low temperature rise, low cost, small magnetic leakage, and a service life of 30 years. It is not afraid of normal starting under 30 ° low temperature. The ring transformer is small in size and can be customized flexibly according to customer requirements without mold, and it is easy to install

3、Briefly describe the working principle of voltage stabilizer

"The voltage regulator is composed of voltage regulating circuit, control circuit, relay or servo motor. When the input voltage or load changes, the control circuit samples, compares, amplifies, and then drives the relay and servo motor to maintain the stability of the output voltage by automatically adjusting the coil turn ratio. The voltage regulator with large capacity also uses the principle of voltage compensation."