ACI Low Power Water Pump Dedicated Frequency Converter

A High Power Water Pump Dedicated Frequency Converter is an electrical control device specifically designed for large-scale water pump systems. It achieves stepless speed regulation of the pump motor by adjusting the power supply frequency, thereby optimizing system efficiency, reducing energy consumption, and enhancing operational stability.

Key Features & Technical Advantages

1. Wide Power Range & High Voltage Compatibility
   • Supports power ratings from tens to several megawatts, with voltage levels including 380V, 6kV, and 10kV.
   • Utilizes multi-level power cell cascading (e.g., H-bridge cascade) for direct high-voltage output, eliminating the need for output transformers.
2. Energy Efficiency & Soft Starting
   • Reduces pump energy consumption by up to 20%–40% (varies by application).
   • Enables soft motor starting, limiting inrush current to 1–1.5 times the rated current, minimizing grid impact.
3. Intelligent Control & Protection
   • Built-in PID controller for automatic speed regulation based on pressure, flow, or other parameters, maintaining constant pressure/flow operation.
   • Integrated protection against overload, overvoltage, undervoltage, phase loss, and short circuits.
4. Environmental Robustness & Durability
   • Industrial-grade components for operation in harsh environments (high temperature, humidity, dust).
   • Explosion-proof and corrosion-resistant designs available for chemical plants, mines, etc.

Applications

1. Municipal Water Supply & Drainage
   • Ensures constant pressure water supply, preventing pipeline pressure fluctuations.
   • Adjusts drainage pump speed based on rainfall, reducing energy waste.
2. Industrial Circulating Water Systems
   • Optimizes efficiency in cooling water loops for steel, chemical, and power plants.
   • Reduces pump wear through speed regulation, extending equipment lifespan.
3. Agricultural Irrigation & Hydraulic Engineering
   • Automates irrigation flow based on soil moisture and weather conditions, improving water use efficiency.
   • Enables multi-pump coordination in large pumping stations for flexible scheduling.

Technical Highlights

1. Vector Control & Torque Compensation
   • High-performance vector control algorithms for low-speed high-torque output, meeting startup and heavy-load demands.
   • Torque compensation prevents overheating in low-flow conditions.
2. Multi-Pump Coordination & Redundancy
   • Supports parallel operation of multiple pumps with master-slave switching and load balancing.
   • Redundant design ensures seamless switching to backup units in case of failure.
3. Remote Monitoring & Diagnostics
   • Equipped with RS485, Ethernet, and other communication interfaces for integration with SCADA systems.
   • Built-in self-diagnostics and cloud-based data upload for remote maintenance.

Selection Guidelines

1. Match Pump Parameters
   • Consider rated power, voltage, current, and speed to ensure converter capacity compatibility (e.g., a 10kV/1000kW pump requires a ≥1200kVA converter).
2. Environmental Adaptability
   • Outdoor installations require IP54+ protection; corrosive environments demand corrosion-resistant coatings or stainless steel enclosures.

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.