The high reliability of our VFD systems is achieved by multifold innovations including patented technologies of serial communication, pre-charging, automatic recovery, vertical ventilation & heat dispersion, and so on.
Patented communication technology
The communication between the control system and the power cells is in serial. Compared to parallel communication, the reliability of communication can be improved four times with this innovation.
Patented pre-charge technology
The pre-charging function can effectively control the charging speed of the capacitors, and thus charging shock can be prevented. Together with IGBT intelligent driving technology, the innovations can double the lifetime of the capacitors, from 5 years to 10 years for instance. The maintenance cost can be lowered significantly.
Patented automatic recovery technology
With real-time monitoring, the VFD system can identify the causes of power cell bypass, and automatically restarts once it detects the problems are fixed. It ensures equipment to operate continuously and stably when the bus power supply has instantaneous failure.
Patentedventilation and heat dispersion method
Our VFD’s ventilation system is centralized and vertical. It has significant advantage over the distribution type in terms of temperature field control, air flow distribution, and wind speed uniformity. Since the capacitor units are located at the ventilation ducts, it is estimated that the lifetime of capacitor can be doubled, and thus the overall system service time is prolonged with this cooling mechanism.
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:What is the laptop adapter
4, the working principle: the use of unstable power supply switching power supply principle through the conversion circuit into the notebook computer needs constant voltage DC, to the laptop computer power supply and charging; it is worth noting that: this conversion circuit, there must be protection circuit (Overcurrent protection circuit, overvoltage protection circuit short circuit protection circuit, etc.), to prevent accidents, the protection of the laptop will not burn.
Q:How is the notebook with a power adapter?
Refer to the following factors when purchasing:
Choose the brand:
The principle is to choose the same type with the brand, if not, it can only find other brands. Now online to sell a lot of notebook power adapter are cut corners of the substandard products, the normal use of what should be no problem, once the accident will burn your laptop, save dozens of pieces but burn thousands of pieces of notebook worth the candle. (Such as the actual only 19V3.42A, but the standard 19V4.74A, this will lead to a very slow charge, and even damage the battery and laptop computers. There are some protection removed, this more horrible, there Accidentally burn the laptop.
Q:Acer laptop power adapter
If the computer on the trouble, it is safe on the motherboard, but not for the motherboard for another power on the line,
Q:Laptop power supply 20V 3.5A can use 20V 4.5A power adapter Mody, what impact?
The current will be great ... ... a long time on the bad
Q:The inverter control power is also the same, the pole is not the same as the motor 6 or 4 pole can be used?
can use. But in the inverter "motor parameters" to be some changes. Such as the number of poles, rated current.
Q:How many types of CVT are classified?
CVT (Continuously Variable Transmission) technology that is continuously variable technology, which uses the belt and the working diameter of the main and driven wheel to match the power to transfer, you can achieve a continuous change in transmission ratio, resulting in transmission and engine conditions of the most Good match
Q:A 4-pole AC motor into a 2-pole AC motor, the motor is controlled by the inverter, to make the maximum speed of the 2-pole motor and the original 4-pole
The upper limit frequency transferred to 25HZ, the number of poles changed to 2, try to run when the motor speed test
Q:My laptop can not use the power adapter, and can only use the battery, how is it ah,
I have encountered the same problem, plug in the adapter, or use the battery power, the battery alarm, not the battery charge, the power adapter can not be used. But the power can charge the battery. If the power adapter alone, one will automatically shut down. Measure the adapter voltage normally. And then to get the computer city maintenance department, gymnastics, it is a simple question, the original power line in the circuit board on the solder joints are loose, that is, Weld, resulting in insufficient current, no wonder, off the machine can charge, boot can not charge, It shuts down. Spent 100 yuan. Business really black. I saw the repair. On the welding a few times OK. No wonder, once I suddenly shot about, the adapter can be used. Later, how to shoot not work. However, although spent 100, but my computer's heat silicone grease for the whole, the computer CPU temperature is not so high before. The beginning of the maintenance staff said that the power management chip may be broken, if the bad to more than 100, then, no bad, just contact the problem, welding also received me 100, really depressed. In fact, you can say good, if the contact problem, certainly below 100.
Q:Three-phase two-pole motor can be used to reduce the frequency of the inverter
With the electromagnetic governor can be, cheap only 50 yuan or so
Q:Can the laptop 1.3a power adapter be used on a 1.5a device?
Absolutely can not try 1.5a! If you want your laptop to go wrong, then use it!