High Voltage VFD 6kV/10kV Medium Voltage Drive
Power Generation: Boiler feed pump control, induced draft fan speed regulation, achieving 20-40% energy savings... Petrochemical: Compressor and pump control in refineries, explosion-proof designs available... Mining: Conveyor belt soft start, crusher speed control, high-altitude derating solutions... Metallurgy: Blast furnace blower, rolling mill drive, high overload capacity design... Cement: Kiln drive, cooler fan control, dust collector optimization...
Power range
400~25000kVA
Input voltage
6kV 3 phase to 3 phase
10kV 3 phase to 3 phase
Product Overview
Application scope
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Automation production equipment such as textiles
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Paper Making
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Sand Making
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Machine Tools
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Packaging
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Food
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Fans
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Pumps
- Motor control strategy: asynchronous machine universal, asynchronous machine vector, asynchronous machine open-loop vector, synchronous machine universal, synchronous machine vector, synchronous machine open-loop vector, etc
- Magnetic flux closed-loop vector control technology: Based on the mathematical model of the motor, the magnetic flux of the motor is closed-loop controlled
- Unit bypass technology: Optional bypass methods, including mechanical bypass and electronic bypass
- Neutral drift technology: When a power unit malfunctions, only the faulty unit is bypassed and the output voltage neutral point is adjusted to improve the voltage output capability
- Output voltage self adjustment function: When the input voltage fluctuates (-10%~+5%), the frequency converter has the rated voltage output ability
- Torque enhancement function: increases the load capacity of the motor during startup and low-frequency operation
- Speed start function: When the motor is rotating, the frequency converter with the motor starts smoothly to reduce the impact on the power grid
- Instantaneous power outage function: When an instantaneous power outage occurs in the power grid, the frequency converter operates continuously and stably
- High voltage power loss self start function: After switching to the power grid or recovering from a short-term power loss, the frequency converter automatically restarts
- Synchronous switching function (optional synchronous switching cabinet): achieve undisturbed switching between power frequency operation and variable frequency operation of the motor, reducing the impact on electrical equipment and the power grid
- Master slave control function: dual or multi machine linkage operation of frequency converter
- Process PID control function
- Upper communication function
Technical Specifications
| project | parameter |
| Rated capacity of frequency converter | 400-25000kVA |
| Rated voltage | 2.3kV~11kV (-20%~+5%) (out of range, special instructions required) |
| Rated frequency | 50Hz/60Hz (-10%~+10%) |
| Control power supply | 380VAC, 30kVA |
| Rated input power factor | ≥ 0.96 |
| Overall efficiency | >96% |
| Output frequency range | 0~80Hz |
| Speed accuracy | ± 0.5% (open loop vector) ± 0.1% (closed loop vector) |
| Instantaneous overcurrent protection | 150% (customizable according to user requirements) |
| Overload capacity | 120% load, 120s |
| Torque limit | 10%~150% |
| Analog input | 3-way 4-20mA/excitation feedback 4-20mA (customizable) |
| Analog output | 4-way 4-20mA |
| Upper communication | Isolated RS485 interface, ModBus, RTU (optional: Profibus, DP, industrial Ethernet protocol) |
| Acceleration and deceleration time | 5 seconds to 6000 seconds (load dependent) |
| Switching input and output | 14 inputs and 22 outputs (8 outputs can be defined) |
| Operating ambient temperature | -5~+45 ℃ |
| Storage/transportation temperature | -25~+55 ℃ |
| Cooling method | Forced Air Cooling (AF)/Water Cooling (WF)/Air Water Cooling (AFWF) |
| Environmental humidity | ＜ 95%, no condensation ※ |
| Installation altitude | ≤ 1000 meters, above 1000 meters above sea level, derate by 1% for every 100 meters increase in operation |
| dust | Non conductive and non corrosive,<6.5mg/dm3 |
| Protection level | IP30 |
| Cabinet color | RAL 7035 (or customized according to the color code provided by the user) |
Model Selection Guide
AnyHz high voltage VFDs (6kV/10kV, 400-25000kVA) provide comprehensive medium voltage drive solutions for asynchronous and synchronous AC motors. Using advanced cell series multilevel (CSM) topology with low-voltage IGBT power cells in series, these HV VFDs deliver perfect sinusoidal output without harmonic filters, ensuring reliable operation in harsh industrial environments.
Key Applications: Power Generation: Boiler feed pumps, ID/FD fans with 20-40% energy savings Petrochemical: Compressors, pumps in refineries with explosion-proof options Mining: Conveyor soft start, crusher control with high-altitude derating Metallurgy: Blast furnace blowers, rolling mills with 150% overload capacity Cement: Kiln drives, cooler fans, optimized dust collection
Technical Features:
Input: 6kV/10kV ±10%, 50/60Hz
Output: 0-rated voltage, 0-50/60Hz
Control: Sensorless vector control, V/F control
Efficiency: >96%, power factor >0.95
Protection: Overvoltage, overcurrent, grounding, thermal
Communication: Modbus, Profibus, Ethernet optional
Customization available for MV motor soft start, speed regulation, and intelligent control systems. Contact our engineering team for project-specific solutions.
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