Is the power of energy-saving motors very low? !
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Variable frequency motor, 110KW. Set the frequency to 50, 380V. The current is only 130A. Is this normal? I seek advice from experts.
The data listed in the post refers to the load for motor drive; the load amount is 130A. It cannot be said that energy-saving motors have low power. If under the same load, the current of a regular motor is 133A, while the current of an energy-saving motor is only 130A, then it can be said that the energy-saving motor indeed provides energy savings.
In other words, is this motor currently only producing 40 KW of power in actual operation? !
380*130=49400. This question has nothing to do with energy-saving motors, right?
Thank you. Actually, this is the motor for a fan; I have chosen a fan with a capacity of 65,000 cubic feet and a pressure of 4,000 Pa. The power should reach 110 KW. It’s only over 40 kW now, what’s going on?
Thank you. Actually, this is the motor for a fan; I have chosen a fan with a capacity of 65,000 cubic feet and a pressure of 4,000 Pa. The power should reach 110 KW. It’s only over 40 kW now, what’s going on?
Check the operating condition curve provided by the fan manufacturer
The design power must be higher than the actual power used; otherwise, if the motor has no protection, it will burn out.
There can’t be such a big difference, right?
The starting load of the fan is high, while the operating load is low; 30% of the rated power is reasonable, and 20% is also acceptable.
Is the variable-frequency motor working properly? Its rated power is 130 KW; if you keep it running at 130 KW, then what’s the need for variable frequency control? As the fan starts up and reaches stable operation, its power increases gradually