The working principle of distribution transformer is mainly divided into the following aspects:
1. High-voltage side power supply: The high-voltage side of the distribution transformer receives high-voltage power supply from the power system transmission line and generates a magnetic field in the winding on the high-voltage side.
2. Magnetic field induction: The magnetic field induction on the high-voltage side generates an electric potential in the winding on the low-voltage side, thereby supplying the electric energy demand of the low-voltage terminal.
3. Difference in the number of winding turns: The number of turns of the high-voltage side and low-voltage side windings of the distribution transformer is different. According to the law of voltage transformation, the more turns of the high-voltage winding, the higher the potential generated, which is conducive to the conversion of high-voltage power supply. For low voltage output.
4. Magnetic permeability of the iron core: The magnetic permeability of the iron core is related to the manufacturing material and cross-sectional area, and is proportional to the magnetic induction intensity (magnetic flux density), which in turn causes the winding to induce potential changes and provide electrical energy.
5. Circuit short-circuit protection: The distribution transformer is also equipped with a circuit short-circuit protection component. If a short-circuit fault occurs on the low-voltage side or the high-voltage side, the circuit short-circuit protection component can quickly cut off the circuit and protect the transformer from damage.
