Industrial Variable Frequency Compressor VFD Drive Three Phase 380V

KY900E Series Industrial Air Compressor Dedicated Variable Frequency Drive

The industrial air compressor frequency converter developed by our company is a frequency conversion speed control device designed specifically for air compressors. By adjusting the motor speed, it achieves stable air supply pressure, energy saving and consumption reduction, and extends equipment life. It is the core control equipment of modern industrial compressed air systems.

Technical Principles

• Variable Frequency Speed Regulation Technology
  Principle: By adjusting the input frequency of the motor, the speed can be infinitely adjusted. For example, when the gas consumption decreases, the frequency converter reduces the motor speed to 60% of the rated value, and the power consumption can be reduced to 36% (power is proportional to the cube of speed).
  Key parameters: speed range 0-50Hz, frequency resolution 0.01Hz, dynamic response time<50ms.
• Closed Loop Control System
  Pressure feedback: Real time monitoring of pipeline pressure is achieved through pressure sensors, and the frequency converter automatically adjusts the motor speed to maintain a constant pressure (such as ± 0.1 bar).
  Control algorithm: Built in PID regulator, supporting multi machine linkage control.

Product Advantages

• Energy Saving
  Energy saving loading: reduces pressure operation by 10% compared to traditional air compressors, and reduces power consumption by 10%.
  Unloading energy saving: The energy consumption during uninstallation is only 40% of that during loading, with a comprehensive energy saving rate of 20% -50%.
  Case: After the renovation of a chemical plant, an annual energy saving of 400000 kWh was achieved, resulting in a savings of 40000 dollars in electricity bills.
• Equipment protection
  Soft start: The starting current is ≤ 2 times the rated current, reducing the impact on the power grid and machinery.
  Extended lifespan: 50% reduction in bearing wear and doubling of lubricant replacement cycle.
• Productivity
  Stable gas supply pressure reduces product defect rate by 15%.
  Support remote monitoring and fault warning to reduce downtime.

Key Selection Points

• Compressor type matching
  Applicable models: screw, vortex, centrifugal air compressors.
  Not applicable model: skateboard type air compressor (due to mechanical structure limitations).
• Frequency converter performance
  Power matching: Select according to 1.2-1.5 times the rated power of the compressor.
  Environmental adaptability: Protection level ≥ IP54, working temperature -10 ℃ to+50 ℃.
  Control mode: Supports V/F control, Vector Control (SVC), and Direct Torque Control (DTC).
• Functional requirement
  Energy saving function: load adaptive, waste heat recovery interface.
  Protection functions: overvoltage, undervoltage, overload, phase loss, grounding protection.
  Communication function: Supports protocols such as Modbus, Profibus, Ethernet/IP, etc.

GuangDong Zhufeng Electric Co.,LTD established in 2004, is a national high-tech and energy save enterprise with approval by National Development and Reform Commission. Focusing on the development and production and sale of products of “energy saving and control speed and variable speed” , Zhufeng has been a very good supplier for energy saving and automation control solutions . With it’s own brands: “ACI”,“ZFENG”, Zhufeng has developed DLT series products including vector and universal variable frequency drive, servo system, energy saving cabinet, industrial power saver, soft starter etc. Applications including ceramic, machinery, petrochemical, metal, textile, food, papermaking, cement, water supply, plastic injection, central air-conditioning, smart building,etc.