1.

Dual Control

Star - Delta

VFD

Energy ( Electrical) Saving Air Compressors Operations !!!!!

***** Expected ROI within 2 years *****

1.
Energy saving when operating compressors at maximum pressure. Compressor will produce compressed air from 25% to maximum of 100% ( full load ).

2.
Saving from Compressor unload cost. It cost 30% to 60% of FLA when operating in unload mode.

3.
Energy saving from Pressure band. Coat extra of 3% to 6%, for every 1 barg higher discharge pressure.
example: If you required Line pressure of 7 barg. Your compressor are require to start loading at 7 barg and off load at maximum pressure of 8 barg. ( That is the normal 1 barg pressure band ).

4.
If air demand is less the lower set point. The compressor can program to stop, Thus more energy saving.

5.
When there is demand for air ( pressure drop ), the compressor will restart, using soft start mode. Saving more from Power surge when restarting. and will has a longer lifespan for the switchgear.

*** Expected ROI within 2 years ***

So that your may use the saving on CSR, annual diner or Charity of your choice.