How to develop power transformers? History of development of power transformers

Power transformer is a kind of static electrical equipment used to convert AC voltage and current to transmit AC energy. It has the advantages of low noise, low power consumption, simple operation and stable performance. How did the power transformer develop? Do we understand it today? Xiao Bian mainly introduces the history of power transformer development.

In the past decade, China's electric power construction has achieved rapid development with remarkable achievements. Among them, the rapid growth of power generation installed capacity, the rapid development of power grids, power supply structure adjustments have been continuously optimized, the level of technology and equipment has been greatly improved, energy saving, emission reduction and consumption reduction have achieved remarkable results, and power construction has achieved leapfrog development. This has provided a strong impetus for the stable and rapid economic and social development of our country and has played an important role in supporting and safeguarding the people’s lives.

Statistics from the National Bureau of Statistics show that from 2007 to 2011, the sales scale of the power transformer manufacturing industry continued to expand, and sales revenue grew at a rate of over 13% per year. Sales revenue reached 178.436 billion yuan in 2011, a year-on-year increase of 16.53%; total profit reached 102.14 Billion yuan, a year-on-year decrease of 5.43%. On the whole, in 2011, China's power transformer manufacturing industry was stable, but its profitability declined. Due to the consideration of the global economic environment, China may increase the proportion of renewable energy in the future. Both State Grid and South China are working on light DC. These are new trends and will bring new development areas for the transformer industry. Moreover, the development and use of power transformers in the market has become more widespread. Some well-known companies have also emerged from the standpoint of technology and quality. For example, the First Investment Group has been devoting itself to the development of the national electrical industry for many years, and with many scientific research institutes, Universities and international industry giants have established close cooperation and established the “Shanghai Yikai Electric Research Institute”, which specializes in research and development, production of transmission and distribution control equipment, high and low voltage electrical components, and intelligent electrical products. They have developed “intelligent PLC control”. "General Screen" and "Intelligent Switchgear Master Control" and various other high and low voltage electrical components; cooperated with Shenyang Transformer Research Institute to develop, produce and produce high and low voltage transformer products, and successively developed S(B)H15-M, S(B) )H16-M type amorphous alloy coil core power transformer, SC9, SCB9, SC10, SCB10 series resin insulated dry type transformer, SG10 type H grade insulated dry type power transformer, SGB11-R coil core H grade non-enveloping coil Dry power transformers, 10kV grade S9, S11 series oil-immersed power transformers, 35kV grade S9-□-□ series oil-immersed power transformers and other series of products and R & D and production at the same time Transformer production foil winding machine, amorphous alloy shearing machine, high and low voltage winding machine and other special machinery and equipment; with the United States General Electric (GE) join forces to create the largest and most professional marine switchgear and low pressure in the Asia-Pacific region Electrical equipment has successively developed GEA plus2.0, Modula plus, Modula 630k, marine transformers, marine box substations, marine electrical automation equipment, and tunnel-specific distribution cabinets.

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