Zhuhai Sinopak Electric Ltd. Company Logo Zhuhai Sinopak Electric Ltd.
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Sinopak Medium Voltage Variable Frequency Drive for Cement Plant

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Zhuhai Sinopak Electric Ltd.

Room 202, Block A, No. 80 Shishan Village, Hengqin Town Zhuhai Guangdong
Contact name
Ashley Lin

Quick Information

  • Brand Name: Sinopak
  • Place of Origin: China


Sinopak Medium Voltage Variable Frequency Drive for Cement Plant

Product Structure
Sinopak MVVFD includes integrated structure and split-type structure based on capacity. The integrated structure is adopted in low capacity MV VFD and the split-type structure is adopted in high capacity MV VFD. In terms of an integrated machine, which is compact in size, phase-transformer, power units, control systems, and power frequency bypass are fully integrated into one cabinet; In terms of a split-type machine, phase-transformer, power units, control systems and power frequency bypass are assembled in separate cabinets in which are combined on the spot.

Medium voltage input 
3KV, 3.3KV, 4.16KV, 6KV, 6.6KV, 10KV, 11KV (-20%~+15%)  
50/60 Hz±10% 

Medium voltage output 
 0~Rated voltage 
0~50/60 Hz, 0.01 Hz 
Multilevel PWM sin wave, total harmonic distortion (THD) < 4% 

Inversion efficiency at an rated load > 98.5%, 
overall efficiency (including the transformer) > 97% 
Power factor (within the range of speed regulation) > 0.95,
power factor (at a rated load) > 0.97  
Overload capacity: 110%: long-term stable operation, 120%: 1 minute, 150%: 2 seconds, and 160%: prompt protection 

Allowable outage duration: 200 ms (and longer under light load) 
Mean time between failures: > 100,000 hours 

Control mode: flux optimization and control with space vector PWM 
Acceleration/deceleration time: 1 to 3,600 seconds 
Switching quantity input/output:11-way/10-way 
Analog input: 4-way (optional: 0 to 5 V, 4 to 20 mA) 
Analog output: 3-way (optional: 0 to 10 V, 4 to 20 mA )  
Communications: RS485 interface, Modbus-based (optional Profibus-DP and Ethernet interfaces)  
Control power supply: Single-phase 220 V AC, 5kVA 

Excitation control ( dedicated for the synchronous motor) 
Automatic excitation control, manual excitation control, multi-stage speed excitation control, and external excitation control for the MVVFD 

Environment: Operating in indoor environment without explosive or corrosive gases, conductive dust, or oil fog 
Operating ambient temperature: 0 degree~+45 degree 
Storage and transportation temperature: -40 degree ~+70 degree 
Ambient humidity: < 90% (No condensation)  
Operating altitude: Derating required for an altitude greater than 1000 meters 

Protection function: Overcurrent, overload, short circuit, three phase current unbalance, immediate electric outage, input/output phase loss, overvoltage, undervoltage, body overheat, transformer overheat, shutdown due to external fault, and power unit auto bypass 
Cooling mode: Forced-air cooling  
User interface: An 10-inch Human Machine Interface  
Protection grade: IP31


  • Price Condition : FOB
  • Price : USD50000 / set
  • Delivery Port : Shenzhen

Packaging & Delivery

  • Packing :Wooden case (Fumigation)
  • Delivery Lead Time : 50 days
  • Minimum Order : 1 Set
  • Supply Ability : 500 sets/year

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