What is a high-efficiency motor, are you using it right?
So-called high-efficiency motors, what are their metrics and how much energy can they save?
When choosing a geared motor, you may come into contact with three different energy efficiency grades. What are the differences between these motors? What is the difference in their direct energy consumption? What do you need to pay attention to when choosing?
The energy efficiency rating of the motor mainly includes three general Y series motors, YX3 high efficiency motors and YE3 ultra high efficiency motors. Their average efficiency is 87.3%, 90.3% and 91.7% respectively. This is the average of the experimental efficiencies of multiple tests in the implementation state.
What is a high-efficiency motor? The emergence of high-efficiency motors was relatively early in the energy crisis of the 1970s. He reduced the energy consumption of electric motors by about 20%, so it was a technical one at the time. breakthrough. Along with the emergence of energy shortages, high-efficiency motors have emerged in recent years, which is to reduce energy consumption while improving efficiency. In the following academic conferences, ultra-super high-efficiency motors appeared, so the motor level was divided into four energy efficiency levels, namely standard efficiency (IE1), high efficiency (IE2), ultra-efficient (IE3) and ultra-high efficiency (IE4). Motor.
In 199, the national organization had the consent of the internationally advanced Y (IP44) series of motors in the early 1980s, using the power rating and installation dimensions specified by the international IEC standards, using Class B insulation, and quantitative production in 1982. So many motors after that are produced according to such a standard. In the process of continuous technological innovation, those motors with high energy consumption were improved or eliminated.
Among the parameters of the motor, the common parameters are as follows, for you to interpret the following.
Voltage: such as 1500W or less
Frequency: such as 50HZ (excluding variable frequency motor)
Power supply: such as three-phase AC power
Rated power: such as 5KW
Number of poles: such as 4 poles
Speed control: such as constant speed, frequency control
Cooling method: such as closed from fan cooling
N design: such as normal torque, direct start
Work system: such as S1 continuous work system
The energy efficiency of a motor refers to the ratio of the mechanical energy output by the motor to the power supplied by the power source. This is a ratio calculation of efficiency.
