Voltage regulator is essential for stable voltage class of electrical equipment, which also urges us to develop more advanced voltage regulator to meet the needs of equipment.Let's understand how important the voltage regulator is: the function of the voltage regulator is to stabilize the voltage, and the unstable voltage will cause delay in the production of the equipment, delay in the delivery date, and the difference in the production quality and other aspects of the economy or reputation loss, and even fatal injury; at the same time, it also accelerates the aging of the equipment, which will affect the service life of the equipment and even the matchingIf it is damaged, it will face the trouble of maintenance or equipment renewal in a short period of time; if it is serious, it may cause safety accidents and cause huge losses.
In the actual use of voltage regulating transformer, some high-end users can not meet the accuracy range after voltage transformation. The wide range of accuracy is a big problem of voltage regulation accuracy. How to improve the accuracy of voltage regulating transformer?Voltage regulating transformer, also known as auto coupling voltage regulator, is divided into single-phase and three-phase two types. It has the function of independent voltage regulation and transformation. Hereinafter referred to as voltage regulator, the accuracy range of traditional voltage regulator is between 1-5%, and the range is too wide to locate the accurate required voltage and can not meet the needs of customers.In order to improve the output accuracy of the voltage regulator, the imported voltage regulator chip combined with the rotary handle calibration adjustment technology is introduced, and the output voltage can reach * * to 1%.The volume of the new regulator is 3% smaller than the original volume. Although it is not very large, it will be more beautiful and applicable on the whole!
The power regulator is a kind of voltage regulator which can adjust the load voltage.It can call out a variety of suitable for electrical equipment requirements of the power supply voltage.Therefore, with the development of power system, the improvement of voltage level and the increase of transmission capacity, the power regulator is widely used due to its low loss and low cost.So how do we choose the right power regulator?It is mainly determined by the following three points.1. Voltage range: the voltage range should meet the needs of load equipment.2. Rated capacity: the capacity of the power regulator should be higher than the total capacity of the load, especially the inductive load and capacitive load, and the impact margin should be reserved during startup, which is generally 30-40% higher than the total load capacity.For example, if it needs 40KVA capacity and it is ordinary pure resistive load, we can choose 45kVA power regulator. If it is inductive load and capacitive load, we can choose power regulator above 60KVA.3. Rated current: the rated current of the power supply voltage regulator is the current higher than the working voltage of the load. If it is inductive load and capacitive load, 30% margin should be reserved.So how can the power regulator work?With China's economic development, the demand for resources will continue to increase.Rational use of resources, avoid waste has become an indispensable part of our life.This is more important for enterprises.Many enterprises may have such distress, there are many equipment power supply voltage is not consistent with the grid voltage, one by one transformer is too expensive, and these equipment is not often used, with the transformer not only not often used, but also often maintenance, feel particularly wasteful.With such distress, it is advisable to choose a power regulator to solve this series of problems, because the power regulator has this magical function, because its characteristics "voltage regulation" can meet the needs of different power supply voltage equipment.Moreover, it is easy to move and maintain. It can be used in many ways. It is a good choice to avoid waste.
The natural oscillation frequency of winding largely depends on the degree of compaction after the equipment is installed, because the elastic coefficient of insulation is related to this.The tighter the pressure is, the higher the natural oscillation frequency of the winding will be.Therefore, increasing the compression force may increase or decrease the dynamic force, which is related to whether the natural frequency is close to or far away from the forced oscillation frequency.Up to now, the operation practice at home and abroad has proved that the dynamic stability damage caused by short circuit of transformer has certain relationship with the calculation of electric force and verification strength according to the static method in design. It may also be because of this reason that the research on dynamic force calculation method and vibration calculation of transformer has been promoted, and it is still in continuous development.At present, in the design of small and medium-sized transformers, the static force is still used to calculate the electric force and to check the strength, but this problem is not big.For the design of large capacity transformers, some transformer manufacturers have imported programs based on dynamic force calculation from abroad, and similar programs have been studied in China. It seems that good results have been achieved, but these are all patents.However, it also shows that our country also has good results in the calculation of dynamic force and vibration of transformer.