The Best Efficiency Point of Electric Motors - The Key to Overpressure

The so-called optimal efficiency point refers to the point of optimal efficiency,In the motor industry, the best efficiency point refers to the power at the best efficiency point around the rated voltage and rated power range. For example, a 48V1000W motor is powered on at 48V for power measurement. When the power measurement chart is displayed, you can look at the lines around 1000W. If you see a highest efficiency value of 82.5%, corresponding to 960W, but the efficiency value at the 1000W power point is only 81%, This indicates that the optimal efficiency point for this motor is 960W.

The optimal efficiency point for most factories is usually around the rated power point, with a difference of less than 5%, but some factories may not be certain. The highest efficiency value is 83%, which is good, but this 83% is at the 48V500W power point. He said that this motor is 72V1500W, and we bought it to use at 72V. The efficiency rate at 1500W point is only 65%.

Firstly, determine the usage requirements. The faster the better. If you want a motor that can break 100% at 72V, do not consider the quality of the motor, as safety and quality cannot be guaranteed.In normal use, when the speed exceeds 50 yards, it has already entered an unsafe zone.When ordering motors, consider the range of use, especially for those intended for overpressure, and do not use too much.

Firstly, it is necessary to determine one's own speed requirements, voltage and force requirements. If one plans to continue overpressure in the future, it is best to also determine the fastest desired speed after overpressure.

Then, divide the required speed by the voltage used. For example, if you plan to buy a motor with an overvoltage of 72V and want the fastest speed to be greater than 75 kilometers per hour, then 75/72=1.0416

Then you need to find that the speed divided by the voltage is exactly greater than 1.0416, and the motor can meet your requirements. Please note that it must be exactly greater than 1.0416. If it is too high, it will consume power.

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