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Dear colleagues, suppose a reducer is equipped with a 22KW motor and a frequency converter set to 50Hz at full capacity; in this case, the maximum output speed of the reducer is 60 revolutions per minute. If the motor power remains unchanged and the reduction ratio of the gearbox is altered (which requires modifying the gearbox), while the motor’s frequency is reduced to 40HZ, but the output speed of the gearbox after modification is still 60 revolutions per minute, will the actual power consumption of the motor change in this case? Get bigger or smaller? :lol
Changing the reduction ratio and lowering the frequency of the inverter allows the reducer to achieve the same output speed at a lower motor input speed, which generally improves the efficiency of the system and may reduce the actual energy consumption of the motor. However, the actual change in energy consumption also needs to take into account various factors such as the overall efficiency of the system and the load conditions. .
This approach is also aimed at saving energy and reducing consumption. First, we need to consider the output power, as well as the costs associated with upgrading the equipment. Effort can be saved without reducing strength – this is a basic principle for reference.
The actual power consumption of the motor depends on two factors: 1. the power requirement of the equipment that consumes energy after the reducer. 2. Change in the rated power of the motor after frequency conversion (the rated power at a frequency of 40 Hz is equal to 40/50*22=17.6 KW).