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  • variable frequency inverter
    HV31 Compact variable frequency inverter
    HV31 Compact Drive The HV31 is a compact drive with V/F and PG vector control modes. Designed to be a high-performance but simple product, it can be used to control low power loads, such as textile machines, wood and metal milling operations, etc. Features: 1. Dual CPU processing, more precise control. 2. Using the 4 generation IGBT. 3. Optional internal brake unit. 4. Internal EMC filter with breakpoint design. 5. Sealed circuit board for better environment immunity. 6. Flexible digital input terminals with user configurable polarity. 7. Reference (current) loose, trip or not could be selected. 8. Built-in dynamic junction model, real-time monitoring of IGBT junction temperature. 9. Simple parameters, easy to use. 10. Run at reduced capacity with single phase input in the event of loss of 3 phase input. 11. AVR (Automatic Voltage Regulation) keeps output voltage stable during input voltage transients. 12. Switching frequency automatic adjustment. 13. Smooth restart from any speed from after power interruption. 14. DC injection braking. 15. Skip frequency function to avoid undesirable resonant speeds. 16. Powerful electronic potentiometer function. 17. Standard MODBUS-RTU. 18. The comprehensive protection function. 19. 8 preset speeds (decided by control terminals). If you want to know some information about our company,pls check our website:
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  • vfd drive
    Oilfield vfd drive electric drive
    Oilfield Drive Drawing from years of experience and success in similar power electronics, Hopewind has launched a patented “All-in one energy feedback type drive". Designed particularly for oil pumping applications, this drive ranges from 15 to 90kW. Oil pumping is typically the most energy intensive operation of production, making it a worthy application of this specialized motor drive. Features: 1. Increase power factor over 40% without grid capacity expansion. 2. High starting torque at low frequency.        3. Continuous operation with as low as 320v input voltage. 4. Internal fitted DC reactor. Power factor 0.9, efficiency 99.6%. 5. Excellent tolerance of poor input power quality and harsh environmental conditions. 6. 30-50% energy savings on low yielding wells is achievable. 7. High protection grade enclosure (IP54) for use in application with heavy wind and dust. 8. Complete protection function: Intelligent monitoring for over voltage, over current, low voltage, over load, over heat etc. 9. Soft start/stop function: low mechanical impact. Low start current to extend the life of equipment. If you want to know some information about our company,pls check our website:
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