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The domestic special transformers have advanced technology and are gradually developing towards energy saving and low noise.
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The domestic special transformers have advanced technology and are gradually developing towards energy saving and low noise.
News Source: 2012-07-17 16:42:22

The development of transformer manufacturing technology mainly combines the characteristics of new products and new structures, researches the corresponding technology, and focuses on the development and application of new materials and new equipment to continuously improve product quality and reliability. Development requires a large amount of capital investment and an increase in production costs. In the future, the development direction of China's transformers is still energy saving, low noise, fireproof and explosion-proof, and highly reliable. Therefore, high-quality low-loss magnetic conductive materials, winding machines with axial amplitude compression devices, vapor-phase drying equipment, and stepwise cross-cutting are selected. Advanced production equipment such as lines is very important.

In order to reduce the no-load loss coefficient of special transformers as much as possible, the currently used silicon steel sheets are cold-rolled high-quality silicon steel sheets, and the sheet shape is becoming thinner and thinner. In order to reduce unnecessary man-hours and losses during lamination, most manufacturers in China have adopted the non-overlapping yoke process. Iron core tying should gradually promote iron core tying machines. The process and tooling involved in coil manufacturing should ensure lower load loss, higher ability to withstand short-circuit mechanical forces, and better scattered potential performance. Large-scale products require semi-rigid wires to improve mechanical strength.

New distribution transformers that are currently recommended for use in urban and rural power network reforms; roll iron core transformers, amorphous alloy transformers, arc furnace transformers , fully sealed transformers, electric furnace transformers, intermediate frequency furnace transformers , combined transformers, dry type Transformers, high ignition oil transformers, SF6 gas insulated transformers, etc. The production process of these transformers can basically borrow the production process of the aforementioned large-scale transformers.

In order to meet and meet market demands, many transformer manufacturers have introduced advanced production technology and equipment from abroad to further improve product structure and product performance, and have made unremitting efforts in the exploration of new processes and materials to adapt to the development of transformer Need. These transformers are generally used in large-scale power stations or power transmission, and their reliability is very important. Therefore, manufacturers have taken many measures to improve the performance and rationality of electric, magnetic, thermal, and mechanical distribution.

In terms of insulating parts processing, in order to ensure the performance of insulation, heat dissipation and resistance to mechanical forces, qualified enterprises should purchase insulation processing center equipment. At present, the welding of leads is generally performed by flame brazing or resistance brazing by brazing machines. Some large enterprises in China use cold-press welding, and high-frequency brazing is still blank in China.

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