Title: About the conversion formula of 7.5KW kW motor power to horsepower in three-phase electric system Three-phase motors are widely used in industry, agriculture, and many other fields. Known for their efficiency and reliability, they play a key role in driving a wide range of mechanisms. Among them, power is a very important parameter, which is not only related to the performance of the motor, but also directly related to the operating efficiency and energy consumption of the equipment. THIS ARTICLE WILL EXPLORE A COMMON MOTOR PARAMETER PROBLEM – HOW TO CONVERT THE POWER OF A 7.5KW THREE-PHASE MOTOR INTO HORSEPOWER (HP). The basic principle of a three-phase motor A three-phase motor is a device that uses the current change characteristics of three-phase alternating current to drive mechanical equipment. Its structure is simple, stable in operation, and easy to maintain. In industrial applications, three-phase motors typically power different amounts of power at voltage levels. Among them, power is one of the important indicators to measure the performance of the motor. The higher the power, the stronger the driving force of the motor, and the corresponding energy consumption will also increase. Second, the importance of power unit conversion IN THE MOTOR INDUSTRY, POWER IS USUALLY EXPRESSED IN KILOWATTS (KW). However, in some contexts, it is customary to use horsepower (HP) to represent the power of a motor. Therefore, understanding how to convert kilowatts to horsepower is essential to understand and compare the performance of different motors. In addition, this conversion also helps engineers and technicians better understand the performance parameters and design requirements of the motor. 3. Introduction to power conversion formula To convert kilowatts to horsepower, the following formula can be used: HP=KW×1.34× coefficient (coefficient depends on the efficiency of the motor)For general motors, the efficiency coefficient usually fluctuates within a certain range. Here we can use the average efficiency factor for the calculation. Therefore, for a three-phase motor with a power of 7.5KW, its horsepower value can be calculated by the following formula: HP=7.5KW×1.34× efficiency coefficient (assuming that the efficiency factor is the average value). Through this formula, we can easily understand the conversion relationship between the power and horsepower of the motor. At the same time, in practical applications, knowing the horsepower of the motor helps to understand the driving ability and performance of the motor more intuitively. This also helps to select the type and size of the motor that is more suitable for the specific application. It is important to note that the actual performance of the motor will also be affected by other factors, such as the voltage stability of the motor, the load characteristics, and the environmental conditions. Therefore, when selecting and using a motor, in addition to focusing on power parameters, other factors need to be considered to ensure that the motor performs optimally under specific conditions. In conclusion, understanding and mastering the conversion formula between kilowatt and horsepower is of great significance for the selection and use of three-phase motors. It helps engineers and technicians better understand the performance parameters and design requirements of the motor, ensuring that the motor performs optimally in real-world applications and meets specific needs. At the same time, attention should also be paid to the influence of other factors such as the actual application environment and working conditions of the motor to ensure the safety and reliability of the motor operation.