What is the difference between a power transformer and a distribution transformer?

All transformers used in the power network are collectively referred to as power transformers, which are all levels of transformers used before power distribution. Generally, the low voltage is 6kV and above. All transformers used in the power network are collectively referred to as power transformers, which are all levels of transformers used before power distribution. Generally, the low voltage is 6kV and above.

Transformers that reduce the grid voltage to the working voltage of electrical equipment are called distribution transformers. This type of transformer is used for daily lighting and factory power. Generally, the low voltage is 0.4kV and below. A distribution power transformer is a static electrical equipment, which is used to convert a certain value of AC voltage (current) into another voltage (current) with the same frequency or several different values of voltage (current). When the primary winding is energized with alternating current, an alternating magnetic flux is generated, and the alternating magnetic flux induces an alternating electromotive force in the secondary winding through the magnetic permeability of the iron core. The level of the secondary induced electromotive force is related to the number of turns of the primary and secondary windings, that is, the voltage is proportional to the number of turns. The main function is to transmit electrical energy, therefore, the rated capacity is its main parameter. The rated capacity is a customary value for expressing power, which is the size of the transmitted electrical energy, expressed in kVA or MVA. When the rated voltage is applied to the transformer, it is used to determine the rated current that does not exceed the temperature rise limit under specified conditions.

Now the more energy-saving power transformers are three-dimensional wound core transformers and amorphous alloy transformers. The biggest advantage is that the no-load loss value is extremely low. In order to achieve the goal of carbon neutrality and carbon peaking, on June 1, 2021, China began to implement transformers with higher energy efficiency levels, which is another big step in reducing carbon emissions and improving power utilization efficiency.

Qingdao Hengfengyou Electrical Engineering Co., Ltd. is a subsidiary of Hengfengshuai Group. Low-voltage switchgear, circuit breakers and other power distribution equipment and power engineering services. At present, the products have been exported to more than 30 countries and regions, mainly in Central Asia (Uzbekistan, Kazakhstan), West Asia (Pakistan, Iran), South Asia (Nepal, Bangladesh), Europe (Spain, Germany), Africa (Zimbabwe, South Africa) , Tanzania, Ethiopia, Uganda, Rwanda), the Middle East (Kuwait, Iraq, United Arab Emirates, Saudi Arabia), etc., a total of 27,839 units have been sold worldwide with high reliability of operation verification, and sincerely hope to establish long-term win-win cooperation with customers at home and abroad. !