The main role of the Meba’s frequency inverter has the following aspects:
Frequency energy. Drive current market mainly for pumps and fans control to achieve energy savings. With fans and pumps, for example, can be clearly calculated energy converter has space. According to current knowledge known mechanics, P (power) = Q (flow rate) × H (pressure). Flow rate Q is proportional to the rotational speed N of the time, a pressure proportional to the square of the rotation speed N H. Theoretically proportional to the cube power P and speed N. For example, a power P0 = 55KW electric motor, when the speed drops to 4/5 of the original speed, by P = (4/5) 3P0 = 64/125 × 55 = 28.16KW, saving rate of 48%, when the speed down to the original 1/2, P = (1/2) 3P0 = 1/8 × 55 = 6.875, saving rate was 87.5%.
Soft-start function. When the motor is a direct start, the starting current is 5-7 times the rated current of the device and this will cause serious impact on the power grid, the grid capacity is very high demand. With the inverter, the motor starting current is generally less than 1.5 times the rated current. Reducing the impact on power and improve the life of the equipment.
Speed effect. In many applications, due process requirements, need speed smoothly, this time, the application of essential inverter.
Improve power factor. Reactive power lines increases the heat loss and equipment, which will lead to a lot of energy consumption among lines, equipment utilization declined. Frequency equipment after use, not only to reduce the loss of power on the line, and can improve the power factor.