4.16kV /6kV Series VFD 3kV /3.3kV Series VFD 6.6kV Series VFD 10kV / 11kV/ 13.8kV Series VFD
Medium Voltage Variable Frequency Drives are designed to be highly reliable with high-performance, yet easy to use.It can satisfy users' need for changing the speed of fans or pumps,as well as improve the productivity. The series are compatible with all types of three-phase medium voltage asynchronous motors. The VFDs which are compatible with medium voltage synchronous motors are in the final stage of development. series of medium voltage VFD manufactured with the new type of IGBT with microprocessor control have the qualities as follows: 1. Voltage resource VFD, direct input of 3,3.3,4.16,6,606 and 10 kV,direct output of3,4.16, 6,6.6 and10 kV,no output transformer necessary. High input power factor, low harmonic current, no power factor corrective capacities and harmonic filters required. 2. Sinusoidal multi-level PWM output waveform, no output filter required, can be directly connected to standard induction motor,no harm to the insulation of the cable or the motor, low harmonics of the motor, reduction of vibration of the shafts or the vanes,with the maximal length of the output cable of 1000m. 3. Friendly human-machine interface. 4. Modular design of the power circuits simplifies maintenance routine. 5.The medium voltage circuits are linked with the controller by the optical fibers,which keep the controller safe and away from the disturbance. 6. The complete fault monitor circuit, accurate fault alarm and protection. 7. Integrated cooling blower 8. The control logic can be conveniently changed with the help of the integrated PLC. 9. Offer both field control and remote control in monitor station, providing convenient controlling options. 10. Support most of the industrial standard protocols (Profibus, Modbus, TCP/IP, etc.) 11. Compatible with industrial standard signal of 0-10V/4-20mA 12. Able to operate at either open loop control or closed loop control status with the integrated PID regulator. 13. Complete system parameter setup function of VFD 14. Easy installation 15. Excellent performance/price ration
Rated output current (A)
Motor power (kW)
Rted input voltage
Input power factor
0.96 with rated load
120% 1 min, 150% immediately
expanded according to requirement
<90% without condensation
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Q:30 kW 6 pole frequency motor torque is how much
To know what is the use of ah, the inverter motor is the same with the ordinary motor, but to prevent the operation of a low speed plus a fan
Q:Can the laptop power adapter be generic?
Different computer adapter interface is not the same, and the voltage, current is not the same.
If just the same, you can use, the voltage can also be used.
Q:Does the inverter set the number of poles to match the number of poles of the motor?
The number of motor poles corresponds to the speed of the motor, the number of poles is not set when the speed of the control error, in the high speed requirements of the transmission is not allowed.
Q:How to choose the right inverter?
Inverter selection science or not for the normal operation of the frequency conversion system is essential. Many beginners on the general inverter selection method is not enough understanding, or even know the method, not sure the choice of the inverter model is positive solution, the following for everyone to solve the mystery.
Inverter selection first look at the AC motor. Because the frequency conversion system generally first determine the motor, then select the inverter. In principle, it is necessary to determine the inverter model based on the actual current at which the AC motor is operating for a long time, and not on the motor nameplate.
Inverter selection next depends on the load type. Frequency conversion system driven load equipment can be divided into three types: constant torque load, constant power load, fan, pump load, different load type select the inverter model is different.
Q:The relationship between the power supply of the notebook and the battery
2, when the laptop turns on the power adapter, and the battery power is low, the charging circuit detects the battery power is lower than the set value, the power adapter will side of the host power supply, while the battery charge. After the charge is restored, it is restored to the power supply state directly from the adapter.
Therefore, the relationship between the power supply of the notebook and the battery is that the battery is charged by the power adapter when the battery level is below the set value.
Q:Yaskawa inverter reported base blockade what is the reason?
This is the base block command, when the external input block command signal, the inverter will appear this code, the code appears, the motor will be free to rotate, does not affect the use.
Q:Oil-free vertical vacuum pump why a little negative pressure inverter on the torque limit
Or the star of the three-phase motor to the corner, so that after the rectifier inverter into a 220-volt three-phase AC ...
Q:If it is 8-pole variable frequency motor, enter the motor nameplate parameters in the inverter input for the 4 pole can?
According to the number of revolutions N = 60 * f (frequency) / p (pole pairs) can calculate the motor is a few poles. If the motor is 8 pole is not recommended in the inverter set to 4. will certainly affect the control accuracy.
Q:What is the IGBT? Our inverter IGBT fried,
Name is the FET, the price of this thing is more expensive,
Q:Is the laptop power adapter hot?
Third, the power of the nominal voltage than my books the battery voltage is much higher, not an accident, right? First of all, to know is that the power supply to the books and the battery power supply to the notebook is different. Battery-powered, the battery output is pure DC, very clean, the battery voltage is neither possible nor need to design a high, lithium battery chemical properties determine a cell output voltage can only be about 3.6V, so Many batteries are used in three cascade way, 10.8V also became a very popular battery voltage. Some batteries are slightly larger than the integer value of 3.6V, such as 3.7V or 11.2V, etc., in fact, to protect the battery. Power supply, the situation is more complex, first of all need to add voltage to further regulation filter to ensure that the power performance is not very good in the case of stable work, the voltage regulator after the two parts of the city, all the way to the work of the power supply , The other way to the battery charge to the part of the power supply to the battery when the same power supply, and the part of the battery charge through the battery charge control circuit can be added to the battery, the control circuit can be very complex, so the power The voltage must be greater than the cell voltage to have sufficient capacity to supply the charge control circuit to the units. Finally the voltage actually added to the cell will never be the nominal voltage of your power supply. Rest assured.