Veikong - Model VFD200 - Smart Mini Variable Speed Drives
VFD200 series inverter is a high-quality and simple VF control inverter.It can run a wide range of speed and torque control in high precision by decoupling control of motor magnetic flex current and torque current torque:fast and accurately,High end hardware platforms,scientific production technology and complete testing equipment make the product more stable and reliable.
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Product Details
- 1,Using DSP as the core of control unit to achieve high-speed and high-performance control
- 2,Motor parameter self-learning,intelligent setting to the optimal control model
- 3,High performance IPM module,protection function such as under voltage,overcurrent,overtemperaature,over the ground short circuit etc.
- 4,The unique EMC design minimizing the pollution to power
Application/Industries Served
The plant has three 75t boilers, three 220t boilers. 1#, 2# and 3# boilers are 75t. 4#, 5#, and 6# boilers are 220t. Six boilers all equip ID fan, FD fan and SA fan. The motors of fans are designed as per max load. But boilers run in max load in very short time and they run at 66% load mostly. So actual air flow of boiler demand is not max flow but variable flow which varies with load changing. In order to meet air flow requirement, we use conventional damper adjustment. This way can change air flow but cannot change motor speed as well as save energy, causing much energy waste and cost rising.
Reconstruction purpose
In order to lower production cost and power consumption, variable frequency technology should be adopted. By utilizing low voltage frequency inverter, the plant has gained considerable energy saving effect and maintenance experience. With maturity of medium voltage frequency inverter, we utilize this technology outcome to medium voltage motor. We reformed for three fans of 4# boiler in May, 2006.
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