Air demand is variable as it is known in plants. Variable air demand cause screw compressor runs continuously at load-unload mode. When compressor run at unload mode, despite producing no air, spend 30-35% of existing power. That consumes energy without any benefit.
The frequency inverter in DRIVE series, detects incoming signal from air pressure sensor which connected to input air line of plant recognize air demand and frequency inverter adjust main motor speed the compressor produces "full" air need of the plant. By this way the energy which will be consumed by standard compressor running at unload mode would have been avoided.
Optimal Energy Use
DRIVE series Variable Speed Screw Air Compressors, would run according to the company's instant air supply, at a rate of 25-30% energy savings are possible.
Frequency inverter to keep control of motor speed, provides more comfortable and soft start-up than standard compressor start-up.
Constant Pressure Advantage
As air demand being controlled regularly air production is instant, pressure in air line is always constant.
Ease of Using Different Pressures
Allow user to use different pressures without requiring any changes in the compressor.
Input and output shock filters protect both frequency inverter and motor, against harmonic and voltage imbalance that may occur in the network.
The main motor is cooled with additional cooling system against of possible heating for running at different speeds.
Long Bearing Life
By decreasing number of start-stop mode,bearing lives for motor and air end enlarge.