The Application of New Technology Decides the Creating Trend of Energy Transformer

The first power transformer in the world is 1400VA in capacity, 120/72V in voltage ratio and 40Hz in frequency. The types of China power transformer has developed speedy. The quantity of metal-enclosed switchgear manufacture and also the top quality of production and test facility bring a lot of leaps in development at the same time. So that you can meet the demand and require of industry, a lot of energy transformers manufactures have continually improved their solutions structure and functionality combining advanced technologies and equipment in current years. With the application of new technologies, material and approach, it has appeared numerous new sort merchandise in distinctive structure, for example new S9 series power transformer, completely enclosed transformer, resin insulated or OVDT transformer, amorphous crystalline alloy iron core transformer and combined transformer. As a result of the demands in future development, transformer substation must combine with new technologies and develops to become the one particular of huge capacity, high voltage and high reliability. The alternating voltage level develops from 220kV, 330kV, 500kV and 750kV to 1000kV. The direct voltage alterations ±500kV to be in ±600kV,±800kV and ±1000kV. Moreover, the capacity adjustments from three-phase 120MVA-840MVA even into 900MVA and from one-phase 250MVA-400MVA even into 533MVA. These transformers are mainly used in large-scale power station or energy transmission, so that its reliability becomes very crucial. Thus, energy transformers manufacture adopts a lot of measures to improve the rationality of performance and distribution in electricity, magnetic medium, heat and power. regulator transformer really should pay attention to improve its own insulativity, meanwhile, increase its extinction voltage and make its voltage higher than the highest working voltage which is used for a long time. It should increase the allowable field strength of insulated materials and develop the technologies of control field at the same time. To decrease the effect of field strength on design, increase the allowable field strength on process and be in no change with the balance point on the water in oil and paper in operation are so important to the safety and reliable operation of high voltage energy transformer. In addition, it also needs to increase the performance to resist mechanical energy, mainly because no matter higher voltage power transformer or low voltage transformer, it will be in short circuit during the service life of operation, which will influence the safety and reliability of transformer. With all the increasing environmental awareness, the building of power distribution transformer and power station is limited by the demands of environment protection. People really should pay attention to the energy consumption, noise and electromagnetic field which are made by the operation of transformer and electric reactor, for those are also the elements to affect the design of energy station, the layout of energy distribution as well as the evaluation of environment-protecting. Therefore, the main trend of power transformer need to be in energy-saving, low noise, no leakage and to be in compact type or assemble variety. The compact type transformer, especially power distribution transformer, is usually used in cities. The assemble variety is used in remote area or the area where is lack in transportation. This kind of assemble transformer on the scene fits to become in priority development.