LCD Inverter 2000w-4000w
2.LCD inverter are used for telecommunication,compressor, rack mount equipement
dc voltage (V)
input voltage (V)
output voltage (V)
pure sine wave
automatic switch time
over-voltage and low voltage protection;
Low battery protection; Surge and spindle current protection; Overload protection 100%-120%; 30 SEC > 120% 100 ms; > 150%, 50 ms output short circuit < 150 ms
Working environment temperature
-15 - +50°C
- Q:Laptop power adapter current is not the same alternative?
- The adapter is the voltage source, the actual output current depends on the size of the load resistance,
- Q:Will the motor suddenly stop when the inverter is suddenly powered down?
- Generally in the absence of external brake or brake case, if the power, the motor is in a free stop state, uncontrolled,will gradually slow down to 0
- Q:Does the inverter set the number of poles to match the number of poles of the motor?
- Variable-frequency (VFD) is the application of frequency conversion technology and microelectronics technology, by changing the motor operating frequency mode to control the AC motor power control equipment. The inverter is mainly composed of rectifier (AC variable DC), filter, inverter (DC variable AC), brake unit, drive unit, detection unit micro-processing unit and so on.
- Q:Why the number of motor poles increased, the inverter capacity will increase
- The power of the three-phase motor is equal to the root number of 3 times the line current and the line voltage of the product again good with the power factor. Can also be 3 times the phase current and phase voltage of the good product and then good to power factor.
The frequency converter should match the rated current of the motor, not the power of the motor.
- Q:Jd1a-40 motor speed controller and how to connect the motor
- Speed control motor wiring method:
3.4.5 is the terminal of the tachogenerator (U / V / W) from the right-to-left order of 1.2 for the excitation coil (F1 / F2) terminal, from the extended end of the speed motor (electromagnetic clutch)
Master 7 plugs on the air plugs (governor): terminal 1.2 for the 220v input, 3.4 on the speed of the motor on the excitation coil, 5.6.7 speed motor on the tachogenerator.
Motor speed control method:
The speed regulating motor is to change the speed of the motor by using the series, voltage, current, frequency and so on of the motor to make the thyristor voltage regulation method the best.
- Q:How to choose the inverter
- I was doing the inverter, you choose the words, as long as 75KW can be selected, huh, huh, because the 1440 speed is fixed, the connection can be set in the inverter itself,
- Q:3.7KW inverter with 2.2KW 6-pole motor running to see the inverter shows the current is more than 4A, with the amount of clamp to 2.8A
- Inverter output has high harmonics, the current can not use digital clamp meter amount, and use electric clamp meter. The current of the inverter will vary with the voltage, but not the linear relationship.
- Q:Laptop adapter heat
- In fact, as long as the power adapter temperature is within the design range, that is, the temperature in the normal range, the general is not dangerous!
So why is the power supply hot? What kind of temperature range is the normal range? Switching power supply conversion efficiency can only reach 75% -85% or so. The answer is here. Switching power supply conversion efficiency is high enough, it is still difficult to find a better way to convert.
Switching power supply in the voltage conversion, a part of the energy loss, in addition to a small part of the loss in the form of waves, the majority of the way out of the heat. Switching power supply power is missing, the loss of energy is also missing, the power of the heat is also large. This is why the desktop power supply to add a fan for cooling reasons. We may wish to count, a 100W switching power supply, in the use of how much energy loss in the above!
- Q:What is the base blockade in the drive?
- Base blockade is to deal with ul or ce such a special application of security agencies means that when the parking limit action after the base blockade even if the program can not malfunction, relative to the emergency stop circuit more harsh they will directly disconnect the power
- Q:Is it possible to use a different laptop's power adapter?
- See the adapter is suitable for notebook models to use, the following three conditions for reference:
1. The output voltage of the adapter is the same as that of the notebook.
2. Is the adapter's output current consistent with the notebook's requirements? (Or a little bit of the current is also not.)
3. The size of the joint is appropriate. (If the connector is too loose, will be bad, excessive fever.)
For DELL and HP / Compaq and other notebook power adapter, will involve a decoding problem. Please pay attention when the pro to buy.
It is said that the market is also very popular universal adapter, a friend bought a LVSUN brand universal adapter LS-PAB90-BC10, with eight joints. Adapter has a liquid crystal display, you can automatically switch the voltage, very smart, with more than a year, has also been used
Our products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world.
Our well-equipped facilities and excellent quality control throughout all stages of production enable us to guarantee total customer satisfaction. Besides, we have attained ISO9001 and ISO14001 certifications.
1. Manufacturer Overview
|Annual Output Value
||US$5 Million - US$10 Million
||North America; South America; Eastern Europe; Southeast Asia; Oceania; Western Europe
2. Manufacturer Certificates
|a) Certification Name
3. Manufacturer Capability
||71% - 80%
|No.of Employees in Trade Department
||1,000-3,000 square meters
|No. of Production Lines
||OEM Service Offered
|Product Price Range