Transformer How Much Do You Know
Transformer (a device that uses the principle of electromagnetic induction to change the AC voltage) Voice edit Upload video
Transformer (Transformer) is a device that uses the principle of electromagnetic induction to change the AC voltage. The main components are the primary coil, the secondary coil and the iron core (magnetic core). The main functions are: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), etc. [1]
Transformers can be divided into distribution transformers, power transformers, hermetic transformers, combined transformers, dry-type transformers, oil-immersed transformers, single-phase transformers, electric furnace transformers, rectifier transformers, reactors, anti-interference transformers, lightning protection Transformers, box-type substation test transformers, corner transformers, high current transformers, excitation transformers, etc. [1]
Transformers are basic equipment for power transmission and distribution and are widely used in industries, agriculture, transportation, urban communities and other fields. There are about 17 million transformers operating on the grid in my country, with a total capacity of about 11 billion kVA. Transformer loss accounts for about 40% of the power loss of transmission and distribution, which has great potential for energy saving. In order to accelerate the promotion and application of high-efficiency energy-saving transformers, improve energy resource utilization efficiency, and promote green, low-carbon and high-quality development, in January 2021, the Ministry of Industry and Information Technology, the State Administration of Market Supervision, and the National Energy Administration jointly formulated the "Transformer Energy Efficiency Improvement Plan ( 2021-2023)"
