High Voltage Variable Frequency Drive Cabinet (HV VFD Cabinet)
Energy-Saving Speed Control Solution for High-Voltage Motors to Cut Operating Costs & Extend Equipment Lifespan
Product Overview
Our high voltage variable frequency drive cabinet is a professional speed regulation solution designed for high-voltage AC motors. By adjusting the output frequency and voltage, it achieves stepless speed control of motors, replacing traditional damper or valve throttling methods to deliver substantial energy savings. It also enables soft starting to eliminate inrush current impact on the power grid and mechanical stress on equipment. Widely applied to high-voltage motors such as pumps, fans and compressors, it helps clients significantly reduce energy consumption, improve process control accuracy and lower long-term operation costs.
Core Features
-
Remarkable Energy Saving Performance
For variable-torque loads like fans and water pumps, variable frequency speed control replaces traditional throttling regulation, achieving an energy saving rate of 20% to 50%. It greatly reduces electricity expenses and shortens the return on investment cycle, bringing tangible economic benefits for long-running equipment.
-
Smooth Soft Start & Stop
It realizes zero-frequency soft starting of motors without large inrush current, eliminating mechanical impact on motors, bearings and transmission devices during startup. Soft stop function also effectively avoids water hammer effect in pipeline systems, significantly extending the service life of motors and supporting equipment.
-
Comprehensive System Protection
Built-in full-range protection functions include over-current, over-voltage, under-voltage, overload, overheating, phase loss and ground fault protection. It monitors operating status in real time, responds rapidly and triggers alarms in case of abnormalities, fully ensuring safe and stable operation of both the motor and the drive system.
-
High-Precision Speed & Intelligent Control
It features a wide speed regulation range and high precision, and supports PID closed-loop control to achieve constant pressure, constant flow, constant temperature and other automated regulation modes. It can accurately match process requirements, improving production stability and product quality.
-
Industrial-Grade Reliability
Adopting high-quality power components and modular design, it has excellent anti-interference performance and environmental adaptability. The optimized heat dissipation structure ensures stable operation under long-term full load conditions, adapting to harsh industrial field environments.
-
User-Friendly HMI & Rich Communication
Equipped with an intuitive human-machine interface, it displays real-time operating parameters and fault information for convenient operation and troubleshooting. It supports multiple communication protocols such as Ethernet, RS485 and Profibus, and can be seamlessly integrated with PLC/DCS central control systems for remote monitoring and centralized management.
Technical Specifications
- Rated voltage: 3kV / 6kV / 10kV (customizable)
- Power range: 160kW ~ 10,000kW (tailored to project requirements)
- Speed regulation range: 0 ~ 100% rated speed
- Speed regulation accuracy: ≤ ±0.5%
- Input power factor: ≥ 0.95
- Protection functions: Over-current, over-voltage, under-voltage, overload, overheating, phase loss, ground fault
- Communication interfaces: RS485 / Ethernet / Profibus (optional)
- Protection grade: IP20 / IP30 standard, higher grades customizable
- Cooling method: Air cooling / heat pipe cooling (depends on power rating)
Typical Applications
- High-pressure water pumps and booster pumps in municipal water supply and wastewater treatment plants
- Fans, compressors and mills in metallurgy, mining and chemical industries
- Induced draft fans, forced draft fans and circulating water pumps in thermal power and central heating systems
- Kiln fans and conveying equipment in cement and building materials industries
- Water injection pumps and oil transfer pumps in oilfield and petrochemical sectors
- Various high-voltage motor drive scenarios requiring speed regulation and energy saving
Every HV VFD cabinet undergoes strict full-load testing and function verification before delivery. We provide full-cycle technical support from scheme selection and customized manufacturing to on-site commissioning and operation training, delivering reliable, efficient high-voltage motor energy-saving solutions for your projects.
