Title: Discussion on the amperage of current in 3.5 kW three-phase motors Three-phase motors are one of the most commonly used drive devices in modern industry and are widely used in various machinery, equipment, and systems. For the selection and use of motors, it is very important to understand their current parameters. This article will explore a common question: how many amps is the current of a three-phase motor with a power of 3.5 kW? This helps us better understand the performance and needs of the motor. Let's dive into this issue together. 1. What is a three-phase motor? A three-phase motor is a type of electric motor that is driven by a three-phase alternating current. Compared to single-phase motors, three-phase motors have higher efficiency and power density, so they are more widely used in industrial applications. The operating principle of the three-phase motor is based on electromagnetic induction, which generates a rotating magnetic field through a three-phase current in the stator to drive the rotor to rotate. Second, the relationship between power and current There is a close relationship between the power and current of the motor. Power is the work done per unit time, while current is the amount of charge passed through per unit time. During the operation of the motor, the relationship between power and current is affected by the efficiency of the motor, power factor and other factors. Generally speaking, the more power a motor has, the more current it requires. 3. How to calculate the current of the motor? For a three-phase motor, we can calculate its current by the formula I=P/√3U, where P is the motor power (kW) and U is the motor voltage (usually 380V). In practical applications, due to the influence of factors such as the efficiency and power factor of the motor, there may be a certain error in the calculated current value. In addition, the current will be different for different brands of motors, different models, and different operating conditions. Therefore, in practical use, we usually get the current value of the motor by actual measurement. Fourth, about the current amperage of the 3.5 kilowatt three-phase motor For a three-phase motor with a power of 3.5 kW, the current amperage depends on the rated voltage and power factor of the motor. In an ideal case, we can calculate the current value of the motor by the above formula. However, in practice, the actual current of the motor may vary due to changes in the operating state, load condition, ambient temperature and other factors of the motor. Therefore, in practical applications, we need to obtain accurate current values by measurement. At the same time, during the use and maintenance of the motor, it is very important to understand the rated current and maximum current of the motor, which helps to ensure the normal operation of the motor and prolong the service life. In addition, the current parameters of different brands and models of motors may also be different, so when choosing the right motor, in addition to considering power, it is also necessary to consider other parameters such as voltage, current, efficiency, etc. In conclusion, knowing the current parameters of a motor is one of the keys to selecting and using a motor correctly. For a three-phase motor with a power of 3.5 kilowatts, we need to understand its rated voltage, power factor and other parameters, and obtain accurate current values through actual measurements to ensure the normal operation of the motor and prolong the service life. At the same time, in practical applications, we also need to pay attention to the influence of the load of the motor, the operating environment and other factors on the motor current to ensure the safe and stable operation of the motor. Hopefully, this article will help you understand the current parameters of three-phase motors.