The relationship between the rated operating voltage and frequency of the asynchronous motor

Rated power: 80W - the output power of the motor.

Rated voltage; 220VAC - AC refers to alternating current, and the normal working voltage is 220V rated current: - Normal working current.

Rated speed: 930r min - 930 rpm under normal operation.

Rated frequency: 50hz - the voltage of the motor is 50hz, which is the frequency of electricity we usually use at home.

Insulation Grade: Class B - The insulation grade of the motor, the maximum working temperature is 130 Protection Grade: IP44 - The protection level of the motor, IP44 refers to the intrusion of solid objects larger than that, and the incursion of splashed water.

Duty Duty: S3 40% — This is one of many duty shifts for motors.

These are the basic parameters, the output power is 80W at the voltage 220V, and the current is 80W, and there will definitely be discrepancies in actual use because of the voltage.

It's a motor problem, and the motor is too hard.

5.The power flow of asynchronous motors and the relationship between various powers are briefly described.

Hello, asynchronous motor is a common type of motor, and the relationship between its power flow and various powers can be briefly described as follows:1Input power:

The input power of the asynchronous motor refers to the total power of the input electrical energy of the power supply, which is equal to the sum of the output power of the motor and the internal loss of the motor. Input power is generally expressed in p in watts (W). 2.

Output power: The output power of the asynchronous motor refers to the output mechanical power of the motor, which is equal to the input power of the motor minus the internal loss of the motor. Output power is generally expressed in pout in watts (W).

3.Motor efficiency: Motor efficiency refers to the ratio between the output power of the motor and the input power of the motor, that is, the ratio of the output power to the input power.

Motor efficiency is generally expressed in terms of , usually as a percentage or decimal. 4.Power Factor:

The power factor refers to the ratio between the input power of the motor and the product of voltage and current, which reflects the power input power of the motor and the utilization efficiency of the power supply. The power factor is generally expressed in pf and is usually expressed as a decimal. 5.

6.Speed: The speed of the asynchronous motor refers to the speed at which the rotor of the motor rotates, which is one of the power characteristics of the motor output.

The rotational speed is generally expressed in n in revolutions (rpm). In short, the power flow of the asynchronous motor can be simply summarized as swift: input power, output power + internal loss of the motor, torque and speed, motor efficiency and power factor.

Among them, the input power and output power of the motor are important indicators of motor performance, and their size and efficiency, power factor, torque and speed are closely related.

5.The power flow of asynchronous motors and the relationship between various powers are briefly described.

Hello dear, the relationship is as follows: the power flow of asynchronous motors (also known as AC induction motors) can be divided into three parts: electromagnetic torque generation, mechanical rotation and electrical energy output.

Specifically, the generation of electromagnetic torque refers to the magnetic field generated by the current in the rotor and stator, resulting in the torque between the rotor and the stator, and this torque in turn leads to the rotation of the motor; Mechanical rotation refers to the fact that the motor starts to rotate due to the electromagnetic torque generation, and the speed is generated; The power output refers to the power supply from the power supply to the load driven by the motor due to the rotation of the motor. In this process, there are three key power parameters to consider: input power, output power, and torque power.

Input power refers to the amount of electrical energy absorbed by the motor from the power supply, output power refers to the mechanical power output to the driven load when the motor rotates, and torque power refers to the power to transfer torque from the motor to the load. The relationship between these powers can be expressed by the following formula: input power = output power + lost power output power = torque power rotational speed, where the lost power includes friction loss, electromagnetic loss, etc.

It is noted that because asynchronous motors are affected by factors such as rotor slip, their torque and output power are usually non-linear and related to the degree of matching between the supply voltage and load of the motor.

5.The power flow of asynchronous motors and the relationship between various powers are briefly described.

Hello, the power flow of asynchronous motor can be divided into three parts: input power, rotor loss power and output power. Input power refers to the electrical energy input by the motor, which is provided by the power supply and converted into magnetic field energy and mechanical energy through the fixed attitude subcoil of the motor.

The input power can be expressed as p in = v in i in, where v in is the supply voltage and i in is the motor input current. Rotor loss power refers to the loss power generated by factors such as rotor resistance and iron loss during the operation of the motor. The rotor loss power can be expressed as p loss = i 2 r 2, where i 2 is the rotor current and r 2 is the rotor resistance.

The output power refers to the mechanical power output of the motor, which is generated by the rotation of the load driven by the rotor of the electric limb fiber machine. The output power can be expressed as p out = t where t is the torque of the motor output and is the angular velocity of the motor output. The relationship between these three powers can be expressed as:

p_in = p_out + p_loss。In other words, the electrical energy input to the motor is equal to the output mechanical power plus the rotor loss power.

Summary. The mechanical characteristics of the three-phase asynchronous motor refer to the relationship between the speed of the motor and the electromagnetic torque, because there is a certain relationship between the speed of the motor and the slip rate, the mechanical characteristics of the asynchronous motor are usually expressed by S=F(TEM). The mechanical characteristics of three-phase asynchronous motors are divided into two types: intrinsic mechanical characteristics and man-made mechanical characteristics

Intrinsic mechanical characteristics The mechanical characteristics of the three-phase asynchronous motor under the conditions of rated voltage and rated frequency, and the fixed and rotary circuits are also called intrinsic (or natural) mechanical characteristics. The inherent mechanical characteristics of the asynchronous motor refer to the mechanical characteristics of the motor under the rated voltage and rated frequency, according to the specified wiring, and the stator and rotor circuits are not externally impeded

The mechanical characteristics of the three-phase asynchronous motor refer to the relationship between the speed of the motor and the electromagnetic torque, such as the car due to the speed of the motor and the slip rate There is a certain relationship, the mechanical characteristics of the asynchronous motor are usually expressed by S=F(Tem). The mechanical characteristics of three-phase asynchronous motors are divided into two types: intrinsic mechanical characteristics and man-made mechanical characteristics: Intrinsic mechanical characteristics The mechanical characteristics of three-phase asynchronous motors under the conditions of rated voltage and rated frequency, and the fixed and rotary circuits are also called inherent (or natural) mechanical characteristics.

The inherent mechanical characteristics of the asynchronous motor refer to the mechanical characteristics of the motor under the rated voltage and rated frequency, according to the specified wiring, and the stator and rotor circuits are not externally impeded

Anthropogenic mechanical characteristics refer to the mechanical characteristics of the power supply parameters or motor parameters that are artificially changed by the age ring. (1) Anthropogenic mechanical characteristics of reducing stator voltage (2) Anthropogenic mechanical characteristics of rotor string resistance.

Hello, this question will be answered by me for you. Under the rated frequency, the rated speed of the 4-pole asynchronous motor can be calculated by the following formula: rated speed Li Li = 120 rated frequency) The number of poles, among them, 120 is a constant, indicating the number of radians per minute, the number of poles is the number of poles of the motor, and the rated frequency is the frequency of the power supply, generally 50Hz or 60Hz.

According to this formula, the rated speed of the 4-pole asynchronous motor under 50hz power supply is: rated speed = 120 50) 4 = 1500 rpm Under 60hz power supply, its rated speed is: rated speed = 120 60) 4 = 1800 rpm It should be noted that the calculation here is a theoretical value, and the actual rated speed may be affected by factors such as motor design and manufacturing process, and there is a certain error.

In addition, the motor also has parameters such as rated power, rated voltage, and rated current, which will also affect the performance and use effect of the motor. Hope it helps. Which oak search.

Hello, 1500 rpm min. The rated frequency of a 4-pole asynchronous motor is usually 50Hz or 60Hz. At the rated frequency, the rated speed of the 4-pole asynchronous motor is 1500 rpm or 1800 rpm.

The reason for this is that the rotational speed can be calculated by the formula n = 120 f p, where n is the rotational speed, f is the frequency stool envy rate, and p is the number of poles. Therefore, at the rated frequency of 50Hz, the speed of the 4-pole asynchronous motor is 1500 rpm, and at the fixed frequency of 60Hz, the speed is 1800 rpm. However, it should be noted that the actual speed may vary due to load and other factors.

The rated power of the three-phase asynchronous motor refers to: ().

a.The electromagnetic jujube base power of the electric cherry plum motor.

b.Power input is the power of the motor.

c.The mechanical power output on the shaft of the electric motor.

d.Load of stool stool sung power.

Correct answer: c