What is the difference between power transformer and distribution transformer?
Writer： Hengfeng you electric Time：2023-04-18 views：times
What is the difference between power transformer and distribution transformer?
All transformers used in the power network are collectively referred to as power transformers, that is, transformers at all levels used before power distribution, with a general voltage of 6kv-35kv.
The transformer that reduces the grid voltage to the working voltage of electrical equipment is called distribution transformer. This kind of transformer is used as daily lighting and plant power, and the general low voltage is 0.4kV and below. Distribution power transformer is a static electrical equipment, which is used to change the AC voltage (current) of a certain value into another voltage (current) with the same frequency or several different values. When the primary winding is connected with AC, alternating magnetic flux is generated. The alternating magnetic flux induces AC electromotive force in the secondary winding through the magnetic conduction of the iron core. The secondary induced electromotive force is related to the number of turns of the primary and secondary windings, that is, the voltage is directly proportional to the number of turns. The main function is to transmit electric energy. Therefore, the rated capacity is its main parameter. Rated capacity is a customary value of power, which represents the size of transmitted electric energy, expressed in KVA or MVA. When the rated voltage is applied to the transformer, the rated current that does not exceed the temperature rise limit under specified conditions shall be determined according to it.
At present, the more energy-saving power transformers are three-dimensional wound core transformer and amorphous alloy transformer. Its biggest advantage is that the no-load loss value is very low. In order to achieve the goal of carbon neutralization and carbon peak, on June 1, 2021, China began to implement transformers with higher energy efficiency, which has taken another big step towards reducing carbon emissions and improving power utilization efficiency.
Qingdao hengfengyou Electrical Engineering Co., Ltd. is subordinate to hengfengshuai group. It is an export-oriented enterprise focusing on power transmission and distribution industry and integrating product R & D, manufacturing and trade. Its main products are power distribution transformers, medium and low voltage switchgear, circuit breakers and other distribution equipment as well as power engineering services. At present, the products have been exported to more than 30 countries and regions, mainly including 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 The United Arab Emirates, Saudi Arabia) and other countries have sold 27839 sets of high reliability of operation verification in the world. We sincerely hope to establish long-term win-win cooperation with customers at home and abroad for the future!
