IMO developed the Jaguar ECO inverter drive for HVAC markets and specifically for fan and pump applications from 0.75 to 500kW. This enabled them to include special functions such as multi-pump control, and automatic energy and power saving. In multi-pump mode the inverter can control several pumps at a time by using either […]
Designed for fan and pump applications up to 630kW the Mitsubishi Electric’s F700 variable speed inverter drive offers a wealth of benefits for the user and installer. The built in energy optimisation software boosts motor efficiency to unprecedented levels and intelligently maximises energy savings during acceleration, deceleration and constant speed operation. It also […]
Significant energy savings can be achieved by installing variable speed drives to the fans and pumps used in building services. The Schneider Electric’s (Telemechanique) Altivar (ATV) 61 has been designed to manage and monitor your building’s HVAC and pumping functions. The Altivar 61 drive reduces energy costs by adjusting motor speed to the […]
Quickly estimating the energy savings available by installing variable speed drives to motors is simple as their power consumption is governed by the cube law (see earlier article). In the example given, a 10% speed reduction saves 27% of the running cost. Energy savings calculators are also available for more complex applications, but flow applications are particularly suited to this type of […]
Torque is the measure of the turning force of an object about an axis. When applying a variable speed drive to a motor application it is critical to consider the torque requirement of the load. Variable speed drives manufacturers generally assign their drives into one of three categories according to their torque and power […]