3.7kw ac frequency drive frequency converter 380v

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Introduction of SVF-G7 Series High-performance Vector General-purpose Frequency Inverter


1. Voltage class: 380V


2. Range of power: 0.4KW~450KW


3. Stable and reliable Control Mode


(1) VF control: Multiple curve could been chosen, Linear V/F curve, 2.0 times power drop torque V/F curve, custom V/F percentage(can realize manual energy saving control), multipoint VF curve. This apply to the situation that one frequency inverter drives multiple motors, such as fan, water pump, engraving machine, injection molding machine etc.


(2) Open-loop vector control: Steady speed with high precision, wide range of speed governing, as the speed ratio is 1:200 and 180% rated torque could be output in 0.5Hz. Good dynamic performance.


Open-loop vector is suitable for high-Performance universal occasions such as machine tools, centrifuges, cranes and handling equipment, rolling mill and other loads.


(3) Torque control: Fast torque response,<20ms, precision torque: <5%, applied to winding, drawing and other occasions.

3.7kw ac frequency drive frequency converter 380v

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 3.7kw ac frequency drive frequency converter 380v




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Textiles, Plastics, Ceramics, Electronics, Numerical Controls, Foods Processing, Light Industry, And Pharmaceuticals. Oil, mining and other fields



energy-saving reconstruction of central air conditioning, cement plants fan and air compressor and the energy-saving reconstruction system of various industries.

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Q:What is the laptop adapter
1, laptop adapter, that is, laptop charger. The traditional notebook charger can only output a single voltage to a type of notebook computer charging, the industry said that the traditional laptop power adapter for the single-band notebook charger.
Q:What is the characteristic of the variable pole speed method?
Third, cascade speed control method Cascade speed regulation refers to the winding motor in the rotor loop into the adjustable additional potential to change the motor slip, to speed control purposes. Most of the slip power is absorbed by the additional potential in series, and the additional device is used to return the absorbed slip power to the grid or to convert the energy. According to the slip power absorption and utilization, cascade speed can be divided into motor cascade speed, mechanical cascade speed control and thyristor cascade speed form, the use of thyristor cascade speed, which features: The process of the slip loss back to the grid or production machinery, the higher efficiency; device capacity and speed range is proportional to the investment province, for speed range in the rated speed of 70% -90% of the production machinery; Device failure can be switched to full speed operation, to avoid shutdown; thyristor cascade speed power factor is low, the greater the impact of harmonics. This method is suitable for use in wind turbines, water pumps and rolling mills, mine hoists, extruders. Fourth, winding motor rotor series resistance speed control method Winding asynchronous motor rotor series into the additional resistance, so that the motor slip increase, the motor running at a lower speed. The greater the resistance of the series, the lower the motor speed. This method is simple and easy to control, but the slip power is consumed in the form of heat. Is a level of speed, mechanical characteristics of soft.
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:Quartet of the TA, TC terminals have positive and negative?
The TC terminal has no positive and negative poles, which are passive programmable relays
Q:What is the number of parameters of the motor frequency of the Siemens inverter?
Siemens inverter motor pole number parameter code is r0313 motor pole pairs. Note that the number of pole pairs.
Q:In the case of the inverter, why can not the normal operation after removing the gearbox? The motor is 4 pole.
If there is a load, it may be less than the torque. So it can not run.
Q:Can the laptop's power adapter be used for years?
Generally 3 to 5 years is not a problem, good quality can be used for 10 years. Power adapter is a small portable electronic equipment and electrical and electronic power supply conversion equipment, generally by the shell, power transformer and rectifier circuit, according to its output type can be divided into AC output and DC output type; by way of connection Divided into wall and desktop. Extensive support in the phone son machine, game consoles, language repeaters, Walkman, notebook computers, cellular phones and other equipment.
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
Q:The inverter is running independently
Frequency conversion regulator 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. The inverter will adjust the voltage and frequency of the output power supply according to the breaking of the internal IGBT, and provide the required power supply voltage according to the actual needs of the motor, so as to achieve the goal of saving energy and speeding.
Q:What is the laptop power adapter? Is it the battery?
Notebook power adapter, of course, is not referring to the laptop battery.

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