what you can benefits from INOMAX regenerative drive

INOMAX’s regenerative ACS880 industrial drives range in power from 4 kilowatt (kW) to up to 500 kW for elevators and escalators across industries and large power applications such as cranes, downhill conveyors in mining sites and artificial oil lifting, for example. The drives can provide significant savings in energy consumption compared to VSDs with brake resistors.

With the traditional resistor and mechanical braking methods, the energy has to be dissipated as heat and additional cooling is often required in the electrical room. When regenerative braking is used, the braking energy is not wasted as heat. The elimination of external braking components also means that Inomax’s regenerative drives offer a single, compact solution that minimizes the required installation footprint as well as reduces engineering and equipment costs. This can lead to considerable savings in cabinet building costs.

For example, the annual savings in a waste handling crane powered with a 55 kW hoisting motor, 9 kW long travel motor and 4.5 kW trolley motor was 15.6 megawatt-hour (MWh) and $2,750 based on measurements at customer site – equating to 32 percent in energy savings compared to the previously used technology of resistor braking. The saving is the same as the annual energy consumption of four households.

An added advantage of the ACS880 regenerative drive is that it can boost the motor voltage in unstable network conditions to ensure total reliability of operation even when the supply voltage falls below its normal value. With the motor always receiving full rated voltage, the result is a lower motor current which directly equates to lower losses in the motor.