Shenzhen POWTRAN Technology Co., Ltd.

the energy savings potential in HVAC applictions is large. It is crucial to use all means available to reduce the energy consumption in the building, especially in HVAC applications.

World class high performance closed loop vector control AC drive (frequency inverter, VSD) Applications: Cranes and hoists, Winding, Material handling, Automotive testing, Extruding, Intelligent Drives...

40% of all energy consumed! The savings potential in heating, ventilation and air conditioning (HVAC) applictions is very, very big. And the rising energy cost and concerns about the CO2 levels and global warming make us to choose a better method.

Variabl frequency drives (VFDs, variable speed drives, VSDs) are an excellent choice for adjustable-speed drive users. They allow drive users to fine-tune processes while reducing costs for energy and equipment maintenance.

In big motors, a slip ring with brush can be used to provide a bypass path for the bearing currents. Alternatively isolated bearings can be used.

For applications requiring long motor cables, variable frequency drive (VFD, variable speed drive, VSD) manufacturers usually offer du/dt filters that decrease the steepness of the pulses.

Lowing Your operation Costs in Motor Control with Frequency inverters (Variable Frequency Drives). ac drives (variable speed drives) do more for your operation costs.