The production capacity of frequency inverter is almost 800,000 pieces per year. We are focusing on research, development ,manufacture, sales and service of the VFD AND MV VFD . With superior quality, competitive price and excellent service, our products have been won a good reputation in the world. Successfully offered frequency inverter to many clients from different countries and regions on the basis of mutual benefit, mutual trust and mutual development, such as UAE, Germany, Russia, Korea, Brazil, Saudi Arabia, South Africa, and Nigeria and so on
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
Product Features: 1.Adopts 16 bit microprocessor, sine wave PWM control 2.Automatic torque ascension and automatic sliding compensation function 3.Output frequency 0.1-400 Hz 4.8 period of speed setting and 7 period can be running the program 5.Low noise, carrier frequency can from 1 kHz-15 kHz adjustment 6.Two paragraphs Acceleration and deceleration time and two segments of the S Curve slow and deceleration 7.Simulation frequency set acceptable 0-10 VDC, 4-20 mA 8.The built-in serial communication interface RS-485(baud rate can reach 38400) 9.Save energy running and automatic voltage stabilizing section function (AVR) 1.Adjustable V/F curve Acceleration and automatic and deceleration function 11.Simple vector control and built-in PID control, and the simple positioning function 12,Sleep/wake up function and zero velocity keep function
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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:Laptop power adapter repair how much money
Look at your warranty period had no, no contact the seller can be free for a new one.
If there is no need to repair the warranty period. Now the maintenance point is too lazy to repair.
Suggest you follow your computer brand with a new one Because the maintenance fee to buy a difference can not be much money and the quality is not guaranteed, a power adapter is now dozens of dollars
Q:First reduce the frequency of about one-third of the test, not the case, then appropriate adjustments!
In short, then connected to the bk-dk electrical appliances, is a resistor for the discharge effect
Q:What are the AC motor speed control methods? What are the characteristics of each
1, the frequency converter: smooth, according to the need to adjust the speed, is the future direction of the development of AC motor; (FM) 2, star, triangular connection conversion, generally in the larger motor start star start, triangular operation, Starting current. (Magnetic pole pairs) 3, there is a two-speed, three-speed motor, an increase of the winding, the main change in the stator winding connection to change the speed. (Change the number of pole pairs) The speed of change has two factors: magnetic pole logarithm, frequency
Q:Laptop power adapter in the ring is how is it?
Is the voice of the transformer, do not have to buy, will be used on the line.
Q:The inverter flat rate transferred to 29, on the submersible pump to burn the coil ?!
1. submersible pumps are generally the problem, far away from the reflection voltage, the pump insulation breakdown, in particular, to better pump.
2. Distance away, the inverter and pump connection thicker.
3. Then on the output filter.
Q:Why G120 inverter to be equipped with 4-pole motor?
I add point with the premise of the inverter is to understand the mechanical load characteristics (or process, etc.), can the parameters set.
Q:Laptop warranty period is not over, the power adapter is broken, repair money?
Do not money, first to see where the dealer, if there is no answer, went directly to the repair station, with a good warranty card and other things, that reason you can! The
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.
Q:Is the number of Amps of the notebook power adapter higher than the original number of security on the computer?
There is no power adapter is not the number of clocks that the current output of the current frequency is the number of security in the case of the maximum number of output support the specific output current is the number of security is based on the current power consumption of the computer
But please note that the power adapter output voltage must be consistent with the original agreement is now generally 20V