ac frequency converter 50hz to 60hz 3.7kw China professional manufacturer

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Product Description:

3.7kw 380v 3 phase frequency inverter for air compressor  


1.Technical Specification 


ac frequency converter 50hz to 60hz 3.7kw China professional manufacturer




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2.Trade terms

 

a. Delivery term

We will delivery for you after you done the full payment within 3 to 15 working days.

b. Payment

For small order by air or by express, it is 100% T/T in advance.

For large order by ocean, 30% deposit of the order value should be paid, 70% of the balance payment should be done before delivery.

c. Packing                            

Unless otherwise stated in the offer, the prices include packing in accordance with CHINSC’S customary standard of packing.


3.Applicable fields

Widely used in various fields such as metallurgy, petroleum, chemical industry, textile, power, construction material, coal, pharmacy food, paper making, plastic, printing & dying, lifting, cable making, washing, water supply, heat & ventilation, sewage treatment and son on. In addition the products can also be applicable to draw benches, mixers, extruders, winding machines, compressors, fans, pumps, grinding machines, belt conveyors, hoists and centrifuges.



ac frequency converter 50hz to 60hz 3.7kw China professional manufacturer


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Q:What are the differences and links between the soft starters and the frequency converters, and their respective principles and uses?
The frequency changer mainly consists of rectifying (alternating current direct current), filtering, re-rectifying (direct current alternating current), braking unit, driving unit, detecting unit micro-processing unit and so on. Motor asynchronous speed expression bit: N = 60 f (1-s) / p (1) Where n --- the speed of asynchronous motor; f --- the frequency of asynchronous motor; s --- motor slip; p --- motor pole pairs. From the formula (1) we can see that the output speed of the motor is related to the input power frequency, slip rate and the number of pole pairs of the motor. Therefore, the direct speed regulation mode of AC motor mainly has variable speed (adjustment P), rotor Resistance speed control or cascade speed or internal feedback motor (adjust s) and frequency control (adjust f) and so on. And we now use the most widely used is the frequency control, from the speed n is proportional to the frequency f, as long as the change in frequency f can change the motor speed, when the frequency f in the range of 0 ~ 50Hz, the motor speed adjustment range is very width. The inverter is to change the motor power frequency to achieve speed adjustment, is an ideal high efficiency, high performance speed control means.
Q:Whether the inverter can control the start and stop of the horizontal monopole centrifugal pump
Hi, the inverter control is no problem. You need to select the inverter by the load characteristics of the centrifugal pump, consider: Centrifugal pump rated working current, overload capacity, parking whether there is emergency stop request. I used the inverter to control the horizontal centrifuge some time ago.
Q:What is the output voltage of the laptop power adapter?
16V to 20V, different brands may be different, 19V, 20V more.
Q:How can a variable speed multi - speed three - phase asynchronous motor be controlled by a frequency converter?
Although the waste, but can be used, we use the frequency band with two-speed motor when the output is connected to the fast three terminals, you can refer to the next
Q:Laptop power adapter how to detect?
No load voltage, DELL plug more special, the middle needle no load measurement is no voltage, the outer ring outer house and the wall only 19.5V voltage
Q:How to make the motor speed (control speed), can not use frequency
If you use AC asynchronous motor speed control in three ways: 1 / variable speed control. By changing the motor stator pole pairs to speed, not the linear speed for the sub-file speed, the motor structure and electrical control more complex. 2 / electromagnetic speed control. Driven by the magnet magnet, the electromagnetic coil through the variable size of the DC to speed, for the linear speed, but a waste of energy 3 / frequency control. Through the inverter speed, stepless speed regulation, speed control effect is good, but one-time investment. If the DC motor speed is to change the armature or the excitation coil voltage to achieve speed. Application in the relatively high demand, a one-time investment is relatively large
Q:The laptop power adapter is hot
Almost all of the notebook adapters have this problem, you do not have to worry about this. But do not know you can not tolerate what is the degree, if it is so hot that the adapter has a deformation, then it is recommended to immediately stop using, to the sale to the new
Q:Notebook power adapter on how to look at power
Power and work voltage power adapter will be identified, you only need to distinguish between input and output on the line, the input refers to the utility power supply support, and now are generally 100V ~ 240V, so you can use in most parts of the world,
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:Will the asynchronous motor pole change the number of speed control can also be combined with the frequency converter
but the use of the inverter is based on changes in the load by changing the frequency of power into the motor at any time speed control, you can achieve a smooth and accurate stepless speed control is Now widely used in a speed control method, especially for the load often change or often in the light load operation of the motor.

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