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Variable load phaser

Variable load phaser

Description

In China, the power consumption of electric motors can account for 60% to 68% of all industrial electricity. The loss of power consumption caused by inductive loads such as electric motors is the key source of no power loss in power grids, while large and medium-sized winding motors It is also the key power consumption equipment of many factories and mines. Therefore, how to reduce the power consumption loss caused by large, medium and small winding motors has become an important factor for many manufacturing enterprises to save energy and reduce emissions. Because most of the loads driven by such motors are not stable, the load changes are very complicated, and sometimes there are sudden changes in load, such as steel mill rolling mills, piercers, and wood processing plants.

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In China, the power consumption of electric motors can account for 60% to 68% of all industrial electricity. The loss of power consumption caused by inductive loads such as electric motors is the key source of no power loss in power grids, while large and medium-sized winding motors It is also the key power consumption equipment of many factories and mines. Therefore, how to reduce the power consumption loss caused by large, medium and small winding motors has become an important factor for many manufacturing enterprises to save energy and reduce emissions.

Because most of the loads driven by such motors are not stable, the load changes are very complicated, and sometimes there are sudden changes in load, such as steel mills, piercers, and hot mills in wood processing plants. , the tearing machine of the sugar industry and the crusher of the coal industry. Therefore, if a capacitor is used to carry out reactive power compensation under such load, it is very easy to cause over-compensation or insufficient compensation. Since the capacitor compensation only compensates for the reactive power of the power grid other than the motor, and reduces the reactive power transmission on the power grid, There is no change to the main parameters of the motor's current, power factor and other operating parameters. When the motor load changes greatly, the compensation amount cannot be changed. Moreover, sudden changes in the amount of motor current can cause a significant reduction in the reliability of the capacitor application and even a cracking condition. If a general static immovable phaser is used, there will be a situation of over-compensation or insufficient compensation . The compensation basis for the general-purpose variable load phaser is stable, and even the load is too low or too high, which may result in no Everything works normally.

Scientific research institutes and related variable load phase inductors all over the world have always carried out scientific and technological research on reactive power compensation under variable load as a bottleneck, but there has been no progress. Based on the scientific research and application of reactive power compensation for many years, the company's scientific and technical personnel have developed a series of variable load phase inductors after two years of development, and successfully solved the problem of reactive power compensation under variable load.

The series of products with variable load phase inverting device is the reactive power local compensation device that our company is committed to energy saving and emission reduction design scheme for large, medium and small entangled asynchronous motors. The key is applied to the sudden change load place, which has the general static not. In addition to the role of the dynamic phaser, it is also possible to fully track the motor load transition status, and automatically adjust the main parameters of the compensation according to the load transition status, so that the actual effect can be compensated for regardless of the load condition. Compensation situation. LVP series products variable load phaser can be generally applied to reactive power compensation for wire-wound asynchronous motors in variable load places in concrete, chemical plants, wood processing plants, sugar industry, steel, metallurgical industry, mining and other manufacturing industries.


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