The significance of using frequency inverter on concrete mixer is mainly in the energy consumption and stability improvement.
1. The energy-saving effect is remarkable.
After using the frequency inverter, the system saves more than 30% energy.
System status | System motor power | Motor speed | Average current before | Average current after | Energy conservation rate |
Empty | 104kW | 25Hz | 80A | 20A | approximately 70% |
Filled with materials | 104kW | 50Hz | 110A | 65A | approximately 40% |
2. Improving the stability of the system, reducing the failure rate, reducing maintenance costs. This benefit is mainly reflected in the following aspects:
a. extension of life
The inverter drive enables the soft start of motor operation, thus avoiding the impact on electrical and mechanical equipment of the previous Y-Δ start. So the life of the equipment is extended.
b. powerful protection
The inverter control system has complete electrical protection function, including short circuit protection, overload protection, over-current protection, phase loss protection, under-voltage protection, etc, to maximize the safety factor of the motor.
c. improved synchronization performance of the twin blade
The control mode of one driving two facilitates the synchronization of the double blade of the concrete mixer, greatly reducing internal friction and saving a lot of energy.
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