What are the main parts of transformer?

Aug 13, 2020

The main components and functions of the transformer are as follows:

(1) Iron core: As a path for magnetic lines of force, it also supports the winding.

(2) Winding: as a path for current.

(3) Oil tank: As the outer shell of the transformer, the oil tank is filled with oil, which plays a role of heat dissipation and insulation.

(4) Oil pillow: On the one hand, it plays the role of regulating transformer oil, ensuring that the tank is filled with transformer oil, while reducing the contact area between transformer oil and air, and slowing down the rate of oil deterioration.

(5) Voltage regulating device: change the tap of the coil, change the turns ratio of the high and low voltage coil, thereby adjust the voltage and stabilize the voltage. It is divided into two types: non-excitation voltage regulation and on-load voltage regulation.

(6) Respirator: equipped with adsorbent to absorb moisture in the air.

(7) Explosion-proof tube: When the internal fault occurs in the transformer, the pressure is released to protect the transformer tank from being damaged.

(8) Thermometer: to measure the temperature of the upper layer of the transformer.

(9) Sleeve: It not only insulates the lead from the ground (housing), but also fixes the lead.

(10) Cooling device: Dissipate the heat generated by the transformer in operation.

(11) Oil purifier: Relying on adsorbents such as silica gel and activated alumina filled inside to absorb the moisture, acid and oxides in the transformer oil circulating in the transformer, the oil can be purified and the service life of the oil can be extended.