Which gear of electric fan is the most energy-saving?

An electric fan is an electrical appliance that every family will buy. With the arrival of summer, the frequency of using electric fans becomes higher, and the power consumption of using electric fans for a long time is also quite amazing. So everyone is curious about whether the power consumption of different gears of electric fans is the same. Generally speaking, which gear of electric fan is the most energy-saving? What is the difference between the power consumption of the first gear and the third gear of the electric fan? Here we will answer them one by one.

What gear does the electric fan turn on to save the most electricity?

The first gear of the electric fan saves the most electricity, and the third gear consumes the most electricity.

Because the wind speed of the electric fan is mainly generated by the rotation of the motor, when the motor rotates in the third gear, the faster the motor rotates, the greater the current generated and the power will increase, so the power consumption will be more; When driving to 1 gear, it belongs to low gear, and the power consumption is correspondingly small. It is suggested to start from high gear and then switch to low gear, which will save more electricity.

Many people will have such a question, "Is the power consumption of electric fans the same in different gears?" The answer is obviously no, so what is the difference between the power consumption of the electric fan in the first gear and the third gear?

How to adjust the speed of electric fan? Now I will talk about how to adjust the speed of the electric fan according to the two rocking electric fans used at home. Assume that the first speed regulation mode is tap speed regulation mode. This method mainly changes the number of turns of the stator winding of the motor, which will change the main magnetic flux of the stator winding, thus changing the speed of the motor. This is the speed regulation method for the head-shaking fan used in my home appliance fan. This speed regulation method has relatively few stages, generally only three stages, that is, the first stage is high speed, the second stage is medium speed, and the third stage is the lowest speed. When in the first gear, 220V AC is directly connected to the running winding. At this time, the current flowing in the running winding of the motor is the largest, so its main magnetic flux is also the largest, thus making the speed of the motor the largest. In the third gear, most of the speed regulating windings are connected in series in the circuit. At this time, the resistance in the circuit is the largest, the current is the smallest, and the main magnetic flux is the smallest, so the speed is the lowest.

The second electric fan I use is controlled by thyristor voltage reduction. This speed regulation method mainly controls the conduction time of the bidirectional thyristor through the special control chip of the fan, so as to control the working voltage of the motor. When the motor is in the first gear, the motor speed is the highest and the third gear is the lowest. This control method can realize a variety of wind speeds, such as simulating natural wind, breeze and other operating modes. The stepless speed regulation of the fan is better through thyristor, and its schematic diagram is similar to that shown below. The relationship between electric fan gear and power consumption can be seen through the analysis of the working process of my own fan, whether it is tap speed regulation method, thyristor voltage regulation method realized by single chip microcomputer, or even series reactor speed regulation method. The characteristic of them is that when the first gear is adjusted to the highest speed, the resistance of the motor winding is the smallest, and the current will be the largest under the condition of AC 220V, which will produce the largest electromagnetic torque. According to the power of electrical equipment, it is the product of its voltage and current.

Therefore, it can be said with certainty that when the electric fan is in the first gear and the third gear, its power consumption is different. The higher the wind speed of the fan, the greater its power consumption. As for the specific difference between the first and third gear power consumption of electric fans, it still depends on the actual situation.

The above is the introduction of how many gears the electric fan drives and the power consumption of the first and third gears of the electric fan. Generally speaking, the electric fan drives the first gear and consumes the most power. So if you want to save electricity, I suggest you start it in high gear first, and then switch it to low gear, which will save more electricity. Although the power consumption of the first gear and the third gear of the electric fan is very different, the power consumption of different brands of electric fans with different powers is also different, so the difference between the first gear and the third gear of the electric fan depends on the actual situation.